Форум проектов ISON и LFVN
Общий раздел => Общий раздел => Тема начата: Игорь от Декабрь 11, 2010, 11:53:39
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Нашёл таблицу наблюдений гамма-всплесков Swift GRB Table
•The most recent 50 of 622 bursts are displayed here.
•Database last updated: Thursday, December 09, 2010, 19:24:25 EST
•Download this table as a tab-delimited text file: grb_table_1292056730.txt
http://heasarc.gsfc.nasa.gov/docs/swift/archive/grb_table/grb_table.php?obs_swift=1&obs_ipn=1&obs_integral=1&obs_hete=1&obs_agile=1&obs_fermi=1&year=All+Years&restrict=none&grb_time=1&grb_trigger=1&other_obs=1&redshift=1&host=1&comments=1&references=1&bat_location=1&bat_t90=1&bat_fluence=1&xrt_location=1&xrt_first_obs=1&xrt_early_flux=1&uvot_location=1&uvot_first_obs=1&uvot_vmag=1&number=50
Там упоминаются 2 наших телескопа - ISON-NM в Нью-Мексико (три раза) и GAS-250 в Уссурийске.
Также встречаются ЗТШ, АЗТ-33ИК, АЗТ-14 (видимо, тоже Монды), АЗТ-22 на Майданаке, и русско-турецкий 1,5-м телескоп RTT150, АЗТ-11 в Кампо-Императоре.
Цейсс-2000 - это, видимо, Терскол. Есть еще загадочная RAS Observatory.
Почему-то МАСТЕР упоминается всего лишь 3 раза. Вот тебе и сеть для наблюдения гамма-всплесков. :-\
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RAS - это Rent-a-Scope на горе Джой, как Леня выразился, "соседний сарай". Коммерческая обсерватория, продают время.
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RAS - это Rent-a-Scope на горе Джой, как Леня выразился, "соседний сарай". Коммерческая обсерватория, продают время.
Не, это GRAS. А RAS - это видимо SAO RAS (http://www.sao.ru/). Хотя может и Royal Astronomical Society.
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GRAS и RAS суть одно. Это не САО конечно.
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Не, это GRAS.
GRAS - это организация, а RAS - её обсерватории.
H06 254.47134 0.840711 +0.540310 RAS Observatory, Mayhill
D90 140.3420 0.82728 -0.55991 RAS Observatory, Moorook
E03 145.3822 0.78756 -0.61419 RAS Observatory, Officer
E26 153.3971 0.88414 -0.46566 RAS Observatory, Biggera Waters
ставить слово global в название обсерватории как-то нелогично
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На Камчатке наблюдали еще один гамма-всплеск:
Вчера Владимир, в Мильково, под моим дистанционным руководством наблюдал GRB! Отработал 2 часа, небо было не плохое. Только второй час, немного подпортили подсветкой аварийные работники, которые не далеко проводили ремонто-сварочные работы. Сегодня буду дистанционно руководить съемкой флэт-кадров.
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На Камчатке наблюдали еще один гамма-всплеск:
Мы в Уссурийске тоже наблюдали. Очень удобно что в момент прихода алерта снимали флэты. ;D Сразу же навелись и отсняли серию с большими экспозициями. Сейчас кадры в обработке.
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Коллеги, во-первых, вы молодцы, что отсняли. Во-вторых, надо как можно быстрее обработать и отослать Лёше Позаненко.
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Только что отослал в GCN, после проверки человеком (это моё первое письмо туда) должны опубликовать.
GRB 110201A: ISON optical upper limit
D. Chestnov, A. Matkin (JSC Proekt-Tekhnika), D. Erofeev (Ussuriysk
Astrophysical Observatory) report on behalf of the ISON team:
We observed the field of GRB 110201A on Ussuriysk Astrophysical
Observatory with 0.25-m GAS-250 reflector and CCD with no filter.
The observation started on 2011-02-01 09:58 UT (~23 min after the
burst). We haven't find optical transient within SWIFT-XRT error
circle. The upper magnitude limit has been about R = 19.7.
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А как же Леша Позаненко :-\
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А как же Леша Позаненко :-\
Это я впервые GRB занимался, пардоньте.
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Из Уссурийска, 50-см телескоп
Алексей, добрый день!
Мы позавчера отсняли площадку с предполагаемым GRB по алерту. Просмотрели область предполагаемого всплеска на сумме кадров и сравнили с DSSовскими площадками. В заданной области объетка обнаружено не было (наше проницание было на уровне 19,7). Но если все же есть необходимость, я могу выслать кадры наблюдений. Напишите, есть ли в этом необходимость.
С уважением,
Алексей.
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Только что отослал в GCN, после проверки человеком (это моё первое письмо туда) должны опубликовать.
В публикации отклонено, т.к. я неавторизованный пользователь. Вышлем Алексею Позаненко.
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Жизнь расставила все по своим местам, и, это хорошо :)
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В публикации отклонено, т.к. я неавторизованный пользователь. Вышлем Алексею Позаненко.
Во, во, а я что говорил.
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Все данные - и исходные кадры, и предварительную обработку, если вдруг сами сделали, надо в обязательном порядке,
как можно быстрее пересылать Алексею Позаненко.
Очень часто на кадрах ничего не заметно, все равно их надо отсылать Алексею.
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я, как любитель, тоже начинаю интересоваться гамма-всплесками, ведь среди них есть и довольно яркие. Не подскажите, где можно найти кривые блеска, полученные наземными телескопами?
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я, как любитель, тоже начинаю интересоваться гамма-всплесками, ведь среди них есть и довольно яркие. Не подскажите, где можно найти кривые блеска, полученные наземными телескопами?
Сергей, там мегакритический фактор - время реакции. У тебя какое проницание, в среднем?
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Сергей, там мегакритический фактор - время реакции. У тебя какое проницание, в среднем?
Проницания пока нет, т.к. нет загородного сетапа. Но думаю 16m за 30 секунд не проблема. На счет времени реагирования: в процессе написания (автором EQMOD) бесплатная программа для алертного наведения. Вот и стал интересоваться, ведь чем чаще будут наблюдать GRB, тем лучше для науки. Не так ли?
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На счет времени реагирования: в процессе написания (автором EQMOD) бесплатная программа для алертного наведения. Вот и стал интересоваться, ведь чем чаще будут наблюдать GRB, тем лучше для науки. Не так ли?
Софт под EQMOD это хорошо! А с наукой сложнее; для того, чтобы результаты фотометрии GRB были приняты к публикации, любителю надо аккуратно соблюдать методики - о которых куда лучше рассказажет Алексей. По алертной части всё достаточно хорошо работает: мейлы, sms.
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я, как любитель, тоже начинаю интересоваться гамма-всплесками, ведь среди них есть и довольно яркие. Не подскажите, где можно найти кривые блеска, полученные наземными телескопами?
http://lfvn.astronomer.ru/forum/index.php?topic=16.msg14584#msg14584
http://www.google.ru/search?q=optical+afterglow+light+curve+site:arxiv.org
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К вопросу о передергивании и подтасовке фактов:
http://rus.ruvr.ru/radio_broadcast/6518329/47448166.html
Космическая среда → Небесный "МАСТЕР"
Мария Кулаковская
Современные телескопы смогут заглянуть в историю Вселенной. О российских достижениях в космической оптике рассказал "Голосу России" профессор МГУ Владимир Липунов
Липунов: В прошлом году в декабре в Благовещенске заработала последняя станция нашей сети, и сейчас мы захватили лидирующие позиции. Самое трудное заключается в следующем. Чем раньше вы навелись, тем более ценную информацию получили. Так вот, сейчас примерно 70 процентов гамма-всплесков - российские. Но это было зимой, когда у нас долгая ночь. К лету мы немножко потеряем эти позиции, но все равно будет примерно 20-30 процентов. Это огромный вклад довольно дешевого проекта в мировое исследование.
Из таблицы наблюдений гамма-всплесков Swift GRB Table этого почему-то не следует ;D
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Ага, а "мы" вообще по всем направлением впереди планеты всей, только мужики на Западе об этом не догадываются... ;D
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TITLE: GCN CIRCULAR
NUMBER: 12486
SUBJECT: GRB 111016A: optical upper limit
DATE: 11/10/23 19:32:31 GMT
FROM: Alexei Pozanenko at IKI, Moscow
A. Volnova (SAI MSU), E. Litvinenko (UBAI), I. Molotov (KIAM), A. Pozanenko
(IKI) on behalf of larger GRB follow up collaboration report:
We observed the field of the Swift GRB 111016A (Mangano et al., GCN 12439)
with 40-cm telescope ORI-40 of Kitab ISON observatory on Oct. 16 starting on
(UT) 22:07:26. On the stacked image we do not detect any source within the
enhanced XRT error box (Evans et al., GCN 12441). The photometry is based
on the reference star SDSS 101516.54+272642.0 assuming (after recalibration
gri->R) R=17.77:
Tstart UT, T0+, Filter, Exposure, OT, UL (3 sigma)
(mid, d) (s)
22:07:26 0.15905 none 36*60 n/d 19.2
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Причем уже второй раз. Молодцы, китабцы.
http://adsabs.harvard.edu/abs/2011GCN..12321...1V
А Лёня наладил наконец в Нью-Мексико автоматическую работу по аллертам.
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А Лёня наладил наконец в Нью-Мексико автоматическую работу по аллертам.
Я так думаю, пока по реальным целям не работали. Тесты прошли успешно.
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TITLE: GCN CIRCULAR
NUMBER: 12832
SUBJECT: GRB 111228A: optical observations
DATE: 12/01/14 12:00:43 GMT
FROM: Alina Volnova at SAI MSU <alinusss@gmail.com>
A. Volnova (SAI MSU), L. Elenin (KIAM), A. Pozanenko (IKI) report on
behalf of larger GRB follow-up collaboration:
We observed the field of GRB 111228A (Ukwatta et al., GCN 12737) with
0.45-m telescope of ISON-NM observatory on Dec. 29 at 11:55 (UT,
middle of exposure) in R band with mean FWHM of about 4.9". We took
several unfiltered frames with exposure of 60 s. In a stacked image we
detect an optical counterpart (Ukwatta et al., GCN 12737; Xin et al.,
GCN 12738). The photometry is based on the USNO-B1.0 star 1415-0025726
(RA = 10:00:22.70 Dec = +18:19:23.4, J2000) assuming R2 = 17.28:
T0+, Filter, Exposure, OT
(mid, d) (s)
0.84102 R 1800 19.27+/-0.12
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Класс!! Во, подфартило!
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Со среды по пятницу я, с Лешей П. будем на конфе в Тарусе, в частности там будут доклады по GRB и сверхновым, это как раз то направление, которое я так же хочу развивать в рамках ISON-NM. Так же с Лешей обсудим концепцию программы, по автоматической обработке снимков с гамма-всплесками, так как этот вопрос уже очень актуальный. Т.е. в ISON-NM мы уже можем снять по алерту гамма-всплеск через полторы-две минуты после события, но обработка и циркуляр пойдет только после того, как я или Леша смогут это обработать, не всегда это возможно сразу.
Вообщем мысли есть, обсудим.
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Хорошо бы нам встретиться. Я бы чай для Лёши передал. А то с ноября лежит.
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Давай завтра или во вторник, завтра созвонимся.
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Вот кстати и он. Источник находился на красном смещении z = 0.71627, это примерно 9.86 миллиардов световых лет.
Погода была никакущая, облака и ветер, кстати ветер хорошо виден на сильных выбросах телескопа по Dec. Не думал что достанем, из 30 кадров снялись только 6, потом облака закрыли цель.
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TITLE: GCN CIRCULAR
NUMBER: 12871
SUBJECT: GRB 120119A: optical observations
DATE: 12/01/19 12:57:41 GMT
FROM: Alexei Pozanenko at IKI, Moscow <apozanen@iki.rssi.ru>
L. Elenin (KIAM), A. Volnova (SAI MSU), A. Pozanenko (IKI) report on
behalf of larger GRB follow-up collaboration:
We observed the field of the Swift GRB 120119A (Beardmore et al., GCN
12859) with 0.45-m telescope ISON-NM observatory on Jan. 19. We took
several unfiltered images of 60 s exposure on Jan.19, starting (UT)
05:19:52. We clearly detect the OT source (Beardmore et al., GCN 12859).
Coordinates of the source are (J2000) 08 00 06.96 -09 04 54.4 which is
consistent with UVOT position (GCN 12859). Photometry of the source is
based on SDSS star J080000.59-090624.3 (08:00:00.60 -09:06:24.4) assuming
R=16.42:
t-t0 filter Exp. OT
(mid, days) (s)
0.05234 none 600 18.97 +/- 0.09
0.06039 none 600 18.84 +/- 0.08
0.06837 none 600 19.13 +/- 0.11
0.08321 none 1500 19.51 +/- 0.07
0.10178 none 1500 19.70 +/- 0.08
0.12128 none 1500 19.99 +/- 0.08
0.13989 none 1500 19.86 +/- 0.08
Looking for the photometry result one can suggest either plateau phase or
the start of a re-brightening episode at ~ 0.14d.
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TITLE: GCN CIRCULAR
NUMBER: 12881
SUBJECT: GRB 120119A: optical observations
DATE: 12/01/20 09:20:57 GMT
FROM: Alexei Pozanenko at IKI, Moscow <apozanen@iki.rssi.ru>
L. Elenin (KIAM), A. Volnova (SAI MSU), A. Pozanenko (IKI) report on
behalf of larger GRB follow-up collaboration:
We observed the field of the Swift GRB 120119A (Beardmore et al., GCN
12859) with 0.45-m telescope ISON-NM observatory on Jan. 20 between (UT)
05:59:24 - 06:53:16. We do not detect the OT at the UVOT position reported
in GCN 12880 (Chester et al.).
However we detect the source with coordiantes (J2000) 08 00 06.97 -09 04
56.6 with uncertainties of 0.1" (in both coordinates) which is differ from
OT coordinates calculated in the first epoch of our observations (Elenin et
al, GCN 12871). This source coincide with SDSS source
SDSSJ080006.97-090456.8 (r=21.05) and is also visible at DSS2 image (R).
Photometry of this source at 1.0987 days after burst (mean time) is 21.1 +/-
0.2 and based on SDSS star J080005.86-090434.9 (J2000) 08 00 05.868 -09 04
34.91 assuming R=18.05.We suggest that the source could be a host galaxy of
GRB 120119A. All results are preliminary.
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TITLE: GCN CIRCULAR
NUMBER: 12887
SUBJECT: GRB 120121A: ISON-NM optical observations
DATE: 12/01/21 13:16:52 GMT
FROM: Leonid Elenin at ISON <l.elenin@gmail.com>
L. Elenin (KIAM), A. Pozanenko (IKI), A. Volnova (SAI MSU), I. Molotov
(KIAM) report on behalf of larger GRB follow-up collaboration:
We observed the field of the Swift GRB 120121A (Page et al., GCN 12885)
with 0.45-m telescope ISON-NM observatory on Jan. 21. We took several
unfiltered images of 60 s exposure on Jan. 21, starting (UT) 12:29:25. We
do not detect any object within the XRT error circle (Page et al., GCN 12886
), down to 19.7m (calibrated against the USNO B1.0 catalog).
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Сегодня по алерту, автоматом начали наблюдения GRB 120308A. Через 70 сек после получения алерта телескоп начал экспозицию. Первый циркуляр. Наблюдения продолжаются. Вспышка достаточно яркая.
TITLE: GCN CIRCULAR
NUMBER: 13019
SUBJECT: GRB 120308A: confirmation of the optical afterglow
DATE: 12/03/08 08:06:37 GMT
FROM: Alexei Pozanenko at IKI, Moscow <apozanen@iki.rssi.ru>
L. Elenin (KIAM), I. Molotov (KIAM), A. Pozanenko (IKI) report on behalf
of larger GRB follow-up collaboration:
The 0.45-m telescope of ISON-NM observatory robotically followed up the
field of the Swift GRB 120308A (Baumgartner et al., GCN 13017 ) on March
8, 06:16:55, i.e. 3.3 minutes after burst trigger. In the first frame of 30
s exposure we do not detect the optical afterglow (Virgili et al., GCN
13018 ) up to R~16m. However in a stacked several first images of 1800 s
exposure we clearly detect new source in coordinates 14 36 19.95 +79 41 12.3
which are coincide with coordinates of the optical afterglow (Virgili et
al., GCN 13018 ). The magnitude of the source at (UT) 06:38:10 (middle
time) is R~17.30m. All images are unfiltered and calibrated against
USNO-B1.0 R2 field stars.
All results are preliminary. Observation is continuing.
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Поймали ее еще на подъеме, первый раз вижу как за несколько минут она вспыхивает и гаснет, выходя на плато с медленным ослаблением. Пока мы единственные кто успел снять это. Сейчас она уже не видна на одиночных экспозициях, будем смотреть по сумме. Жаль что событие произошло в полную Луну. Наблюдения и обработка продолжаются...
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Вот повезло, так повезло!! Лёня - ты молодец!!!
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Поймали ее еще на подъеме, первый раз вижу как за несколько минут она вспыхивает и гаснет, выходя на плато с медленным ослаблением. Пока мы единственные кто успел снять это. Сейчас она уже не видна на одиночных экспозициях, будем смотреть по сумме. Жаль что событие произошло в полную Луну. Наблюдения и обработка продолжаются...
Поздравляю, Леня! Автомат - это сила!
Леня, а сейчас наблюдения нужны? У нас сейчас ясно, но Луна тоже полная. Как считаешь - пробовать?
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Игорь спаибо! Впервые получились такие ценные наблюдения. Действительно, мы первые кто заснял. Вторым, через 15 минут был 2-м телескоп Фолкеса. А вот циркуляр первыми дали они, хотя на наш второй циркуляр тоже впоследтсвии стали ссылаться. Эту ситуацию мы постараемся исправить софтом, который в данный момент разрабатывается совместно с командой CLT.
Юра, спасибо! Да, автомат это сила, а хорошо настроенный - вдвойне ;D Наши измерения под утро показали что объект быстро затух, он был уже порядка 20.3. Теперь есть смысл снимать только на чем то реально большом, без Луны - искать хоста. Из-за полнолуния, как я понимаю, крупные телескопы были на "профилактике" - спектр никто так и не получил. Это досадно, без него не напишешь серьезной статьи, ведь мы не знаем точно красного смещения, есть только примерная оценка. Но что-то думаю Леша П. выдаст. Вообщем это был реальный успех, ведь мы зафиксировали т.н. "flare", как говорит Алексей, это бывает в 10% случаев, где вообще фиксируют оптическую компоненту...
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Леня - молодец! Хорошо успели ;)
Конечно молодцы и все те, кто тебе помогает ( команда)
Желаю и в дальнейшем опережать!
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GRB 120308A
(http://spaceobs.org/images/GRB120308A.gif)
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Поздравляем команду благовещенцев с первой регистрацией послесвечения гамма-всплесков - на 25-см ОРИ-25 наблюдался по аллерту GRB 120404A. В сумме кадров удалось вытащить слабый сигнал.
В телеграмме от рядом стоящего 40-см телескопа МАСТЕР написано, что послесвечение не обнаружено.
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Вот он кстати
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Дмитрий выложил доклад Лёни на конференции в ИКИ:
http://astronomer.ru/ru/publications-ru/conference-presentations-ru/94-rannie-opticheskie-nablyudeniya-gamma-vspleska-grb-120308a.html
Ранние оптические наблюдения гамма-всплеска GRB 120308A
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TITLE: GCN CIRCULAR
NUMBER: 13520
SUBJECT: GRB 120724A: optical observation in Maidanak observatory
DATE: 12/07/26 19:48:38 GMT
FROM: Alexei Pozanenko at IKI, Moscow
A. Pozanenko (IKI), A. Sergeev (Institute of Radio Astronomy of NASU), A.
Volnova (SAI MSU), O. Burhonov (UBAI), I. Molotov (KIAM) report on behalf
GRB follow-up collaboration:
We observed the field of Swift GRB 120724A (D'Avanzo et al., GCN 13510)
with AZT-22 telescope of Maidanak observatory starting on Jul. 24 (UT)
15:55:51 under mean seeing (FWHM) of about 1.1 arcsec. Totally we obtained 4
images of 600 s exposure in R filter. At the edge of the enhanced XRT
position (Goad et al., GCN 13515) we detected the object with coordinates
(J2000) 16 20 43.28 +03 30 27.1 (uncertainty of 0.12 arcsec in both
coordinates), which is slightly apart from coordinates of the OT reported
earlier (Guidorzi et al., GCN 13511; Holland et al., GCN 13516). Since the
object is also visible in stacked DSS images (R+I) we suggest it is a
possible host galaxy of GRB 120724A.
A preliminary photometry of the object is based on USNO-B1.0 nearby stars:
T0+ Filter, Exposure, OT
(mid, d) (s)
0.42252 R 3x600 20.97 +/- 0.09
A finding chart can be found at
http://grb.rssi.ru/GRB120724A/GRB120724A_AZT22&DSS.png
-
Про первую попытку краснодарцев:
Разговаривал с Лёшей. Он сказал, что что-то получилось с наблюдением гамма-всплеска. Т.е. на грани фола виден объект аж 21,2 звездной величины (при сложении кадров, как я понимаю). Чудеса. В общем, обещает послать первый циркуляр от имени обсерватории КубГУ. Первый блин получился не комом. Молодцы!!
-
TITLE: GCN CIRCULAR
NUMBER: 13523
SUBJECT: GRB 120716A: optical observation in Maidanak observatory
DATE: 12/07/28 14:43:32 GMT
FROM: Alexei Pozanenko at IKI, Moscow
A. Pozanenko (IKI), A. Sergeev (Institute of Radio Astronomy NASU), A.
Volnova (SAI MSU), O. Burhonov (UBAI), I. Molotov (KIAM) report on behalf of
larger GRB follow-up collaboration:
We observed the region of the optical afterglow (Cenko et al., GCN 13489)
of IPN localized GRB 120716A (Hurley et al., GCN 13487) with AZT-22
telescope of Maidanak observatory on Jul. 19 (UT) 17:57:06 and Jul. 21
(UT) 18:46:16 under mean seeing of about 0.6 arcsec. Totally we obtained 8
images of 600 s exposure in R filter. In each particular image we clearly
see the optical afterglow (Cenko et al., GCN 13489; Xu et al., GCN 13490;
Schady et al., GCN 13492) in coordinates (J2000) 20:52:12.15 +09:35:54.2
(uncertainty of 0.13 arcsec in both coordinates).
Preliminary photometry of the afterglow is based on USNO-B1.0 nearby stars:
T0+ Filter, Exposure, OT
(mid, d) (s)
date t_start (UT) filter exp,s OT
2012-07-19 17:57:06 R 4*600 20.71+/-0.04
2012-07-21 18:46:16 R 4*600 21.01+/-0.04
-
TITLE: GCN CIRCULAR
NUMBER: 13609
SUBJECT: GRB 120802A: optical observations
DATE: 12/08/07 23:37:03 GMT
FROM: Alexei Pozanenko at IKI, Moscow
L. Elenin (KIAM), A. Volnova (SAI MSU), I. Molotov (KIAM), A. Pozanenko
(IKI) report on behalf of larger GRB follow-up collaboration:
We observed the field of GRB 120802A (Holland et al., GCN 13555) with
0.45-m telescope ?f ISON-NM observatory starting on Aug. 02 (UT) 08:13:18
(Elenin et al., GCN 13556). We took several unfiltered images of 30 s and
60 s exposures starting on Aug. 02, (UT) 08:13:18. At the edge of the
enhanced by UVOT field astrometry XRT error circle
(http://www.swift.ac.uk/xrt_positions/529486) we marginally detect a source
in coordinates 02:59:22.35 +13:46:07.2 (uncertainty of about 0.3 arsces in
both coordinates). A preliminary photometry of co-added frames is based
on the USNO-B1.0 (R2) nearby stars is following:
T_start, T0+, Exposure, Object,
(UT) mid, d (s)
08:13:18 0.06905 6360 21.2+/-0.6
We suggest the source might be an optical afterglow of GRB 120802A, however
at that time we cannot confirm the fading origin of the source.
-
TITLE: GCN CIRCULAR
NUMBER: 13679
SUBJECT: GRB 120811C: optical observations
DATE: 12/08/18 22:18:42 GMT
FROM: Alexei Pozanenko at IKI, Moscow
L. Elenin (KIAM), A. Volnova (SAI MSU), I. Molotov (KIAM), A. Pozanenko (IKI) report on behalf of larger GRB follow-up collaboration:
We observed the field of GRB 120811C (Barlow et al., GCN 13622) with 0.45-m telescope of ISON-NM observatory starting on Aug. 12 (UT) 03:25:07. We took several unfiltered images of 30 s exposures. The optical afterglow (Denisenko et al., GCN 13623) is marginally detected in co-added frames at coordinates (J2000) 13:18:43.98 +62:18:03.4 with uncertainty of 0.5 arcsec in both coordinates. A preliminary photometry of co-added frames is based on the USNO-B1.0 (R2) nearby stars is following:
T_start, T0+, Exposure, OT, UL (3 sigma) (UT) mid, d (s)
03:25:07 0.5095 1800 21.5 +/-0.5 21.2
-
TITLE: GCN CIRCULAR
NUMBER: 13693
SUBJECT: GRB 120811C: optical observations
DATE: 12/08/20 15:14:34 GMT
FROM: Alexei Pozanenko at IKI, Moscow
E. Litvinenko (UBAI), A. Volnova (SAI MSU), I. Molotov (KIAM), A. Pozanenko
(IKI) report on behalf of larger GRB follow-up collaboration:
We observed the field of GRB 120811C (Barlow et al., GCN 13622) with
0.4-m telescope of ISON-Kitab observatory starting on Aug. 11 (UT)
15:53:49. We took several unfiltered images of 30 s exposures. The
optical afterglow (Denisenko et al., GCN 13623) is clearly detected in
single initial frames. A photometry of some co-added frames is based on
the SDSS stars
SDSS id RA Dec
R
J131912.45+621444.3 13 19 12,453 +62 14 44,35 16.63
J131815,89+621830,6 13 18 15,896 +62 18 30,67 16.64
is following:
T_start, T0+, Exposure, OT,
(UT) mid, d (s)
15:53:49 0.01392 4x30 17,90 +/-0.13
15:56:05 0.01569 5x30 17.95 +/-0.13
15:58:55 0.01841 10x30 18.20 +/-0.10
16:04:35 0.02356 15x30 18.45 +/-0.11
16:13:06 0.03145 25x30 18.40 +/-0.07
-
TITLE: GCN CIRCULAR
NUMBER: 13759
SUBJECT: GRB 120911A: optical upper limit ISON-NM
DATE: 12/09/13 07:13:47 GMT
FROM: Alexei Pozanenko at IKI, Moscow
L. Elenin (KIAM), A. Volnova (SAI MSU), I. Molotov (KIAM), A. Pozanenko
(IKI) report on behalf of larger GRB follow-up collaboration:
We observed the field of the Swift GRB 120911A (Cannizzo et al., GCN
13744) with 0.45-m telescope of ISON-NM observatory starting on Sep. 11
(UT) 07:10:42, i.e ~130 s after burst trigger. We took several unfiltered
images of 30 s and 60 s exposures. Within enhanced XRT afterglow position
(Beardmore et al., GCN 13748) we do not detect any new object. A
preliminary photometry of single and co-added frames is based on the
USNO-B1.0 (R2) nearby stars is following:
T0+, Exposure, OT, UL (3 sigma)
mid, d (s)
0.0017 30 n/d 18.4
0.0028 5x30 n/d 19.1
0.0175 60x30 n/d 20.2
0.0590 30x120 n/d 20.6
TITLE: GCN CIRCULAR
NUMBER: 13760
SUBJECT: GRB 120911A: optical upper limit CrAO
DATE: 12/09/13 07:18:31 GMT
FROM: Alexei Pozanenko at IKI, Moscow
V. Rumyantsev, N.Pit' (CrAO), A. Pozanenko (IKI) report on behalf of larger
GRB follow-up collaboration:
We observed the field of the Swift GRB 120911A (Cannizzo et al., GCN
13744) with AZT-11 telescope of CrAO observatory starting on Sep. 11 (UT)
21:10:38. We took several images in R-filter of 180 s exposure. Within
enhanced XRT afterglow position (Beardmore et al., GCN 13748) we do not
detect any new object. A preliminary photometry of co-added frame is
based on the USNO-B1.0 (R2) nearby stars is following:
T0+, Filter Exposure, OT, UL (3 sigma)
mid, d (s)
0.6130 R 20x180 n/d 20.9
-
TITLE: GCN CIRCULAR
NUMBER: 13761
SUBJECT: GRB 120907A: optical observations of ISON-Kislovodsk
DATE: 12/09/13 18:53:47 GMT
FROM: Alexei Pozanenko at IKI, Moscow <apozanen@iki.rssi.ru>
V. Nevski (ISON-Kislovodsk Observatory), A. Volnova (SAI MSU/IKI), I.
Molotov (KIAM), A. Pozanenko (IKI) report on behalf of larger
collaboration:
We observed the field of GRB 120907A (Racusin et al., GCN 13716) with
Santel-400AN (0.4-m f/3) telescope Ďf ISON-Kislovodsk observatory starting
on Sep. 07 (UT) 00:34:32, i.e. ~10.2 minutes after burst trigger. We took
several unfiltered images of 30 s and 60 s exposures. In a stacked images
we clearly detect optical afterglow of GRB 120907A (Racusin et al., GCN
13716; Gorbovskoy et al., GCN 13718; Kruehler et al., GCN 13719). A
preliminary photometry of stacked frames is based on the USNO-B1.0 (R2)
nearby stars:
T_start, T0+, Exp, Filter, OT
(UT) mid (d) (s)
00:34:32 0.00899 10x30 none 18.55+/-0.09
00:51:45 0.02120 5x60 none 18.95+/-0.13
00:58:09 0.02980 8x60 none 19.52+/-0.20
01:16:32 0.04339 8x60 none 19.50+/-0.20
-
23 сентября H15 пронаблюдал гамма-всплеск GRB 120923A. К сожалению в это время я был на пути из Парижа в Москву, завтра буду обрабатывать кадры.
-
23 сентября H15 пронаблюдал гамма-всплеск GRB 120923A. К сожалению в это время я был на пути из Парижа в Москву, завтра буду обрабатывать кадры.
Вот, что значит телескоп-робот - ты отсутствуешь, а он наблюдает. Лепота ;D
-
Это да :)
-
TITLE: GCN CIRCULAR
NUMBER: 13820
SUBJECT: GRB 120923A: optical upper limit
DATE: 12/09/26 20:24:47 GMT
FROM: Alexei Pozanenko at IKI, Moscow
L. Elenin (KIAM), A. Volnova (SAI MSU, IKI), I. Molotov (KIAM), A. Pozanenko
(IKI) report on behalf of larger GRB follow-up collaboration:
We observed the field of the Swift GRB 120923A (Yershov et al., GCN 13796)
with 0.45-m telescope of ISON-NM observatory starting on Sep. 23 (UT)
05:18:58, i.e 172 s after burst trigger. We took several unfiltered images
of 30 s and 60 s exposures. We do not detect the optical counterpart (Levan
et al., GCN 13802). A photometry of co-added frames is based on the
USNO-B1.0 (R2) nearby stars is following:
T0+, Exposure, OT, UL (3 sigma)
mid, d (s)
0.00447 9x30 n/d 19.7
0.02839 53x30 n/d 20.5
-
На H15 отснял поле GRB 121001A. Сейчас буду смотреть.
-
На H15 отснял поле GRB 121001A. Сейчас буду смотреть.
На сумме источника из GCN13833 не видно. Так что, я тоже подтверждаю что этот объект скорее всего был оптической составляющей всплеска.
-
Небольшая анимашка. :) По моим оценкам на момент вспышки блеск в районе (уточнение 05 10 2012) 18,5m в R.
-
TITLE: GCN CIRCULAR
NUMBER: 13855
SUBJECT: GRB 121011A: optical observations
DATE: 12/10/11 22:32:41 GMT
FROM: Alexei Pozanenko at IKI
A. Volnova (SAO MSI, IKI), A. Matkin (UAFO, ISON), I. Molotov (KIAM), A. Pozanenko (IKI) report on behalf of larger GRB follow-up collaboration:
We observed the field of the Swift GRB 121011A (Racusin et al., GCN 13845) with VT-50 (0.5-m) telescope of UAFO/ISON-Ussuriysk observatory starting on Oct. 11 (UT) 11:21:29, i.e. 6 minutes after burst trigger. We took several unfiltered images of 30 s exposures ending observations on (UT) 12:17:00. In initial frames we clearly detect afterglow (Racusin et al., GCN 13845). Preliminary photometry of some early images is based on USNO-B1.0 stars (R2):
T_start T0+, Filter, exposure, OT
(UT) mid (d) (s)
11:21:29 0.00433 none 30 16.70 +/- 0.08
11:27:04 0.00821 none 30 16.64 +/- 0.07
11:33:14 0.01249 none 30 16.80 +/- 0.10
11:38:12 0.01594 none 30 17.30 +/- 0.10
-
TITLE: GCN CIRCULAR
NUMBER: 13884
SUBJECT: GRB 121011A: early optical light curve
DATE: 12/10/18 23:12:12 GMT
FROM: Alexei Pozanenko at IKI, Moscow
A. Volnova (SAI MSU, IKI), A. Matkin (UAFO, ISON), I. Molotov (KIAM), A.
Pozanenko (IKI) report on behalf of larger GRB follow-up collaboration:
We report the light curve of the optical afterglow of the Swift GRB 121011A
(Racusin et al., GCN 13845). The afterglow was observed with VT-50 (0.5-m)
telescope of UAFO/ISON-Ussuriysk observatory starting on Oct. 11 (UT)
11:21:29 (Volnova et al., GCN 13855). The light curve obtained from series
of 30 s unfiltered imaging can be found at
http://grb.rssi.ru/GRB121011A/GRB121011A_lc.png
The photometry is based on several nearby USNO-B1.0 stars (R2).
-
MASTER II robotic telescope (MASTER-Net: http://observ.pereplet.ru)
located in Kislovodsk was pointed to the GRB121108A (Ukwatta et. al.
GCN13952) 36 sec after notice time and 54 sec after GRB time at
2012-11-08 17:48:33.174 UT in two polarizations. On our first (10s
exposure) set we haven`t found optical transient within SWIFT error-box.
The 5-sigma upper limit has been about 15.8 mag
У нас Кисловодск не снимал?
-
Краснодар снимал, правда погода не фонтан.
Навелись в 21-56 МСК. Получили сообщение в 21-50.
-
Быстро. Молодцы!!
-
В Кисловодске к сожалению погоды не было.
Сори, сейчас посмотрел сводку http://www.solarstation.ru/?lang=ru&id=meteo в это время как раз были небольшие просветы.
Надо хотя бы подключить камеру всего неба к серверу, а то вот так сидишь и ничего не видишь.
-
Сори, сейчас посмотрел сводку http://www.solarstation.ru/?lang=ru&id=meteo в это время как раз были небольшие просветы.
Температура неба за всю ночь была ниже - 20 минут пять, -16 - полчаса и влажность - 98 % при которой мы договорились не наблюдать.
-
TITLE: GCN CIRCULAR
NUMBER: 13978
SUBJECT: GRB 121117A: optical upper limit
DATE: 12/11/21 07:21:38 GMT
FROM: Alexei Pozanenko at IKI, Moscow
A. Volnova (SAI MSU, IKI), D.Varda (ISON), E.Sinyakov (ISON), I. Molotov
(KIAM), A. Pozanenko (IKI) report on behalf of larger GRB follow-up
collaboration:
We observed the field of GRB 121117A (Cummings et al., GCN 13967) with
ORI-25 telescope of ISON-Blagoveshensk observatory starting on Nov.17
(UT) 09:05:39. We took several unfiltered exposures within 2 hours after
the start. We do not detect the OT (Oates et al., GCN 13973) in the XRT
error circle (Beardmore et al. GCN 13972) in any stacked images. A
photometry is based on nearby USNO-B1.0 stars (R2):
T_start T0+, Filter, exposure, UL (3 sigma)
(UT) mid (d) (s)
09:05:39 0.03105 none 80 x 40 18.3
10:05:44 0.07483 none 88 x 40 18.4
09:05:39 0.05397 none 168 x 40 18.9
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TITLE: GCN CIRCULAR
NUMBER: 13988
SUBJECT: GRB 121123A: optical observations
DATE: 12/11/24 01:50:55 GMT
FROM: Alexei Pozanenko at IKI, Moscow
A. Volnova (SAO MSI, IKI), A. Stepura (UAFO), A. Matkin (UAFO), D.
Erofeev (UAFO), I. Molotov (KIAM), A. Pozanenko (IKI) report on behalf
of larger GRB follow-up collaboration:
We observed the field of the Swift GRB 121123A (Helder et al., GCN
13982) with VT-50 (0.5-m) telescope and GAS-250 of UAFO/ISON-Ussuriysk
observatory starting on Nov. 23 (UT) 10:10:15, i.e. 6 minutes after
burst trigger. We took several unfiltered images of 30 s. We do not
detect detect afterglow (Helder et al., GCN 13982; Zhao et al., GCN
13983) in a stacked images. Preliminary photometry of a stacked image
obtained with VT-50 is based on USNO-B1.0 stars (R2):
T_start T0+, Filter, exposure, UL (3 sigma)
(UT) mid (d) (s)
10:10:15 0.02793 none 90x30 18.1
-
Яркая вспышка GRB 121125A. Прошу обратить внимание.
-
МАСТЕР уже отметился...
TITLE: GCN CIRCULAR
NUMBER: 13994
SUBJECT: GRB 121125A: MASTER-NET optical observations
DATE: 12/11/25 09:52:04 GMT
FROM: Vladimir Lipunov at Moscow State U/Krylov Obs <gcncirc@observ.inetcomm.ru>
V.Yurkov, Yu.Sergienko, D.Varda, E.Sinyakov
Blagoveschensk Educational State University, Blagoveschensk
E. Gorbovskoy, V. Lipunov, V.Kornilov, D.Kuvshinov, A.Belinski, N.Tyurina,
N.Shatskiy, P.Balanutsa, D.Zimnukhov, A.Kuznetsov, V.V.Chazov, D.Denisenko,
A.Sankovich
Sternberg Astronomical Institute, Moscow State University
K.Ivanov, S.Yazev, N.M.Budnev, O.Gres, O.Chuvalaev, V.A.Poleshchuk
Irkutsk State University
V.Krushinski, I.Zalozhnih, A. Popov
Ural Federal University, Kourovka
A. Tlatov, A.V. Parhomenko, D. Dormidontov, V.Sennik
Kislovodsk Solar Station of the Pulkovo Observatory
Hugo Levato and Carlos Saffe
Instituto de Ciencias Astronomicas, de la Tierra y del Espacio (ICATE)
Claudio Mallamaci, Carlos Lopez and Federico Podest
Observatorio Astronomico Felix Aguilar (OAFA)
MASTER II robotic telescope (MASTER-Net: http://observ.pereplet.ru)
located in Blagoveschensk was pointed to the GRB121125.36 44 sec after
GRB time at 2012-11-25 08:33:11.383 UT. On our first (10s exposure) set we
haven`t found optica
l transient within SWIFT error-box (Barlow et al., GCN Circ 13993).
Unfortunately notice alert have come immodiatly after sunset when
telescope prepearing
calibration images.
So 5-sigma upper limit of the first images has been about 13.8 mag that
is not very good.
We see OT (Barlow et al., GCN Circ 13993) on UVOT position on the next
images with 14.5 mag limit (UT_start = 2012-11-25 08:34:34, 127
s after trigger time, exp_time = 30s).
We note that there is 16.5 mag star 9 arcsec from UVOT OT coordinates.
The observations is continuated.
The message may be cited.
-
Unfortunately notice alert have come immodiatly after sunset
Это точно, мы еще привязаться не успели, поэтому сразу наблюдать не получилось.
Да плюс дымка присутствует. А через пол часа наблюдения затянуло. В общем неизвестно стоит ли такие кадры обрабатывать.
Может Уссурийск отнаблюдал.
На снимке тю тю по крайне мере, дымка, проницание совсем никудышнее. Звезда какая то сверху с толку сбивает )
-
Может Уссурийск отнаблюдал.
А у нас вообще наглухо небо затянуто было, так бы отнаблюдали.
-
Снимаю по алерту GRB 121212A. Это первая боевая проверка CLT-Gamma. Пока ни SWIFT, ни программа источника в оптике не нашла. Процесс идет...
-
В ИПМ обесточены розетки... Вовремя блин.
-
CLT-Gamma отработал в общем штатно, ложных объектов не нашел. Источник возможно обнаружен на общей сумме в ручном режиме. Он очень слабый. Но совпадает с координатами UVOT и Кека.
Наблюдения начались через 114 секунд после получения алерта.
-
Поздравляю команду CLT с первым циркуляром по GRB.
TITLE: GCN CIRCULAR
NUMBER: 14071
SUBJECT: GRB 121212A: optical observations in ISON-NM observatory
DATE: 12/12/12 18:12:28 GMT
FROM: Alexei Pozanenko at IKI, Moscow <apozanen@iki.rssi.ru>
L. Elenin (KIAM), A. Pozanenko (IKI), A. Volnova (SAI MSU, IKI), V.
Savanevych (KNURE), A. Bryukhovetskiy (NSFCTC), I. Molotov (KIAM), report on
behalf of larger GRB follow-up collaboration:
We observed the field of the Swift GRB 121212A (Grupe et al., GCN 14064)
with 0.45-m telescope of ISON-NM observatory starting on Dec. 12 (UT)
06:58:31, i.e 138 s after burst trigger. We took several unfiltered
images of 30 s exposures. An automatic real-time pipeline did not detect
any new object. However after stacking all images we marginally detected the
source not visible in any filter of DSS2 in coordinates 11 51 10.40 +78 02
15.3 with uncertainty of 0.3 arcsec in both coordinates. The source is
consistent with enhanced XRT afterglow position (Beardmore et al. GCN
14066) and optical transient (Kuin et al. GCN 14069; Perley and Horesh
GCN 14070) . A preliminary photometry of co-added frames is based on
the USNO-B1.0 (R2) nearby stars is following:
UT start, Exposure, OT, UL (3 sigma)
06:58:31 30 n/d 18.3
06:58:31 3x30 n/d 18.7
06:58:31 10x30 n/d 19.4
06:58:31 40x30 20.7 +/- 0.4 20.5
-
Спасибо.
Всегда рады что-нибудь еще закодить.
Вадим. Александр.
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TITLE: GCN CIRCULAR
NUMBER: 14079
SUBJECT: GRB 121212A: Maidanak optical observations
DATE: 12/12/13 20:46:21 GMT
FROM: Alexei Pozanenko at IKI, Moscow
A. Pozanenko (IKI), A. Sergeev (Institute of Radio Astronomy of NASU),
A. Volnova (SAI MSU), O. Burhonov (UBAI), I. Molotov (KIAM) report on
behalf GRB follow-up collaboration:
We observed the field of Swift GRB 121212A (Grupe et al., GCN
14064) with AZT-22 telescope of Maidanak observatory starting on Dec. 12
(UT) 20:51:02 under mean seeing (FWHM) of about 1 arcsec. Totally we
obtained 6 images of 600 s exposure in R filter. At the position of the
OT of GRB 121212A (Kuin et al., GCN 14069; Perley and Horesh, GCN
14070; Elenin et al., GCN 14071) we marginally detected an extended
object. If it will be confirmed the object might be a host galaxy of GRB
121212A.
A preliminary photometry of the object:
T0+ Filter, Exposure, OT
(mid, d) (s)
0.60088 R 6x600 23.0 ± 0.35
is based on USNO-B1.0 nearby stars:
USNO-B1.0 1680-0064718 11:51:09.04 +78:00:39.9 R2 = 16.34
USNO-B1.0 1680-0064713 11:51:05.10 +78:02:00.1 R2 = 19.35
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Всем добрый день! Решил наконец отметиться первым сообщением.
7.07.2012 у нас в Пущино стартовали круглосуточные наблюдения на 110 МГц на новой многолучевой диаграмме БСА, всего
48 лучей, меридианный инструмент, наблюдает в с склонениях +8.69 deg < Delta <+12.63 deg , и +25.18 deg < Delta <+42.13 (куска +12.63 ... +25.18 пока - нет) ; RA= 0h ... 24h
Наблюдения - круглосуточные. Каждые сутки - солидная небесная полоса в указанных склонениях (эпоха примерно 2000 - там еще играет наклон радиотелескопа БСА, на котором идут наблюдения).
Так вот. Захотелось пощупать ежесуточные данные на предмет поиска GRB. И, взял за основу:
Нашёл таблицу наблюдений гамма-всплесков Swift GRB Table
•The most recent 50 of 622 bursts are displayed here.
•Database last updated: Thursday, December 09, 2010, 19:24:25 EST
•Download this table as a tab-delimited text file: grb_table_1292056730.txt
http://heasarc.gsfc.nasa.gov/docs/swift/archive/grb_table/grb_table.php?obs_swift=1&obs_ipn=1&obs_integral=1&obs_hete=1&obs_agile=1&obs_fermi=1&year=All+Years&restrict=none&grb_time=1&grb_trigger=1&other_obs=1&redshift=1&host=1&comments=1&references=1&bat_location=1&bat_t90=1&bat_fluence=1&xrt_location=1&xrt_first_obs=1&xrt_early_flux=1&uvot_location=1&uvot_first_obs=1&uvot_vmag=1&number=50
- но все же совсем верная ссылка - http://heasarc.gsfc.nasa.gov/docs/swift/archive/grb_table/fullview/ - она с координатами, ее использовать удобнее.
Попытки пока не удаются: в створ по дельта с начала июля 2012 по начало января 2013 попали 5 вспышек, но , учитывая, что у нас инструмент меридианного типа (правда, ширина диаграмм - 10-15 минут, вот если прямо в этот время попадем, то...), то надо попасть еще в створ, или хотя бы недолго после вспышки. Кандидаты на поиск - 5 вспышек , а именно:
GRB Time[UT] Trigger Number BAT RA (J2000) BAT Dec (J2000)
120913A 20:18:21 533568 146.400 09:45:36.0 26.959 26:57:32.4
121011A 11:15:30 535764 260.204 17:20:49.0 41.123 41:07:22.8
121025A 07:46:30 MAXI 248.75 16:34:60.0 27.73 27:43:48.0
121202A 04:20:05 540255 256.790 17:07:09.6 23.942 23:56:31.2
121211A 13:47:02 541200 195.575 13:02:18.0 30.173 30:10:22.8
На каждый из них БСА приходил с опозданием от 2 часов 1 минуты до 16 часов 20 минут. Вспышек, увы, нигде не заметил.
Всюду я попытался увидеть after glow - но увы, навскидку, "глазами" ничего нового из источников не замечается (в сравнении с предыдущими сутками).
Специальной обработки: типа сверки данных разных частотных диапазонов, проверки дисперсии, конструирования поисковых математических фильтров и т.п., и т.д. - не делалось.
Вероятность попадания одной GRB при указанных параметрах наблюдений в створ новой многолучевой диаграммы БСА - примерно раз в 3 года.
"Будем ждать" (С)
Для примера: вид наших данных с третьей диаграммы БСА, 5 часов наблюдений (осреднение - одна тчока 15 сек, а вот наблюдаем мы с постоянной времени 0.1 сек). Южные склонения - внизу, луч от луча - примерно на полградуса.
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Посчитал, что за 2012 год было 25 телеграмм про наши наблюдения гамма-всплесков. По-моему, хорошо.
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Сравнить с тем, как работают другие команды, можно на сайте GCN Circulars Archive (http://gcn.gsfc.nasa.gov/gcn/gcn3_archive.html)
"Наши" телеграммы отыскиваются по номеру, пока еще приставка ISON есть только у части наблюдений Лёни.
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1) Elenin, L.; Pozanenko, A.; Volnova, A.; Molotov, I. GRB 120121A: ISON-NM optical observations. GRB Coordinates Network, Circular Service, 12887, 1 (2012), 00/2012
2) Volnova, A.; Litvinenko, E.; Molotov, I.; Pozanenko, A. GRB 120116A: optical upper limit. GRB Coordinates Network, Circular Service, 12899, 1 (2012), 00/2012
3) Volnova, A.; Litvinenko, E.; Molotov, I.; Pozanenko, A. GRB 120118B: optical upper limit. GRB Coordinates Network, Circular Service, 12900, 1 (2012), 00/2012
4) Elenin, L.; Molotov, I.; Pozanenko, A. GRB 120308A: confirmation of the optical afterglow. GRB Coordinates Network, Circular Service, 13019, 1 (2012) 00/2012
5) Volnova, A.; Sinyakov, E.; Varda, D.; Molotov, I. GRB 120320A: early optical upper limit. GRB Coordinates Network, Circular Service, 13198, 1 (2012)
6) Volnova, A.; Litvinenko, E.; Molotov, I.; Pozanenko, A. GRB 120402A: optical upper limit. GRB Coordinates Network, Circular Service, 13200, 1 (2012)
7) Volnova, A.; Varda, D.; Sinyakov, E.; Litvinenko, E.; Kouprianov, V.; Molotov, I.; Pozanenko, A. GRB 120404A: optical observations. GRB Coordinates Network, Circular Service, 13235, 1 (2012)
8 ) Pozanenko, A.; Sergeev, A.; Volnova, A.; Burhonov, O.; Molotov, I. GRB 120724A: optical observation in Maidanak observatory. GRB Coordinates Network, Circular Service, 13520, 1 (2012).
9) Pozanenko, A.; Sergeev, A.; Volnova, A.; Burhonov, O.; Molotov, I. GRB 120716A: optical observation in Maidanak observatory. GRB Coordinates Network, Circular Service, 13523, 1 (2012)
10) Elenin, L.; Molotov, I.; Pozanenko, A. GRB 120802A: optical uper limit in ISON-NM observatory. GRB Coordinates Network, Circular Service, 13556, 1 (2012)
11) Elenin, L.; Volnova, A.; Molotov, I.; Pozanenko, A. GRB 120802A: optical observations. GRB Coordinates Network, Circular Service, 13609, 1 (2012)
12) Elenin, L.; Volnova, A.; Molotov, I.; Pozanenko, A. GRB 120803A: optical upper limit. GRB Coordinates Network, Circular Service, 13617, 1 (2012)
13) Elenin, L.; Volnova, A.; Molotov, I.; Pozanenko, A. GRB 120811C: optical observations. GRB Coordinates Network, Circular Service, 13679, 1 (2012)
14) Litvinenko, E.; Volnova, A.; Molotov, I.; Pozanenko, A. GRB 120811C: optical observations. GRB Coordinates Network, Circular Service, 13693, 1 (2012)
15) Krugly, Yu.; Chiorny, V.; Volnova, A.; Molotov, I.; Pozanenko, A. GRB 120819A: optical upper limit. GRB Coordinates Network, Circular Service, 13713, 1 (2012) 00/2012
16) Elenin, L.; Volnova, A.; Molotov, I.; Pozanenko, A. GRB 120911A: optical upper limit ISON-NM. GRB Coordinates Network, Circular Service, 13759, 1 (2012)
17) Nevski, V.; Volnova, A.; Molotov, I.; Pozanenko, A. GRB 120907A: optical observations of ISON-kislovodsk. GRB Coordinates Network, Circular Service, 13761, 1 (2012)
18) Elenin, L.; Volnova, A.; Molotov, I.; Pozanenko, A. GRB 120923A: optical upper limit.GRB Coordinates Network, Circular Service, 13820, 1 (2012)
19) Volnova, A.; Matkin, A.; Molotov, I.; Pozanenko, A. GRB 121011A: optical observations.GRB Coordinates Network, Circular Service, 13855, 1 (2012)
20) Volnova, A.; Matkin, A.; Molotov, I.; Pozanenko, A. GRB 121011A: early optical light curve. GRB Coordinates Network, Circular Service, 13884, 1 (2012)
21) Volnova, A.; Varda, D.; Sinyakov, E.; Molotov, I.; Pozanenko, A. GRB 121117A: optical upper limit. GRB Coordinates Network, Circular Service, 13978, 1 (2012)
22) Volnova, A.; Stepura, A.; Matkin, A.; Erofeev, D.; Molotov, I.; Pozanenko, A. GRB 121123A: optical observations. GRB Coordinates Network, Circular Service, 13988, 1 (2012)
23) Volnova, A.; Varda, D.; Sinyakov, E.; Molotov, I.; Pozanenko, A.GRB 121125A: optical upper limit. GRB Coordinates Network, Circular Service, 14020, 1 (2012)
24) Elenin, L.; Pozanenko, A.; Volnova, A.; Savanevych, V.; Bryukhovetskiy, A.; Molotov, I. GRB 121212A: optical observations in ISON-NM observatory. GRB Coordinates Network, Circular Service, 14071, 1 (2012) 00/2012
25) Pozanenko, A.; Sergeev, A.; Volnova, A.; Burhonov, O.; Molotov, I. GRB 121212A: Maidanak optical observations GRB Coordinates Network, Circular Service, 14079, 1 (2012) 00/2012
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И сюда еще не вошли телеграммы по наблюдениям команды Научного-1 - я насчитал 11 штук.
Итак, Лёня - 9 наблюдений - наш чемпион!!
Китаб - 4 наблюдения
Майданак - 3
Благовещенск - 4 наблюдения
Уссурийск - 3 телеграммы по 2-м наблюдениям (кривую блеска прописали), но зато один всплеск там на 2-х телескопах наблюдали.
И по 1-му наблюдению в Кисловодске и Чугуеве
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Сравнить с тем, как работают другие команды, можно на сайте GCN Circulars Archive (http://gcn.gsfc.nasa.gov/gcn/gcn3_archive.html)
"Наши" телеграммы отыскиваются по номеру, пока еще приставка ISON есть только у части наблюдений Лёни.
К примеру, телеграмм МАСТЕРА я насчитал 37. В общем-то, сопоставимо с нами - 36 телеграмм.
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Про кол-во наблюдений. Их было чуть больше, чем циркуляров. Некоторые наблюдения не добавляют ничего нового, например верхний предел на время наблюдения существенно хуже, чем уже опубликованный. или же данные вообще не поступили до сих пор. Полное кол-во наблюдений будет в статье, кот. уже отправлена для включения в сборник кнференции в Малаге и после рецензии видимо войдет в этот сборник.
А.
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На 40-ке сейчас снимается серия калибровочных кадров. До этого было снято несколько серий по SMS-алерту.
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МАСТЕР-Кисловодск отснял и вроде бы нашел OT.
TITLE: GCN CIRCULAR
NUMBER: 14142
SUBJECT: GRB 130122A: MASTER-Net early marginal detection of the OT
DATE: 13/01/23 13:47:18 GMT
FROM: Vladimir Lipunov at Moscow State U/Krylov Obs <gcncirc@observ.inetcomm.ru>
E. Gorbovskoy, V. Lipunov, D.Denisenko, V.Kornilov, D.Kuvshinov,
A.Belinski, N.Tyurina, N.Shatskiy, P.Balanutsa, A.Kuznetsov, V.V.Chazov
Lomonosov Moscow State University, Sternberg Astronomical Institute
A. Tlatov, A.V. Parhomenko, D. Dormidontov, V.Sennik
Kislovodsk Solar Station of the Pulkovo Observatory
V.Yurkov, Yu.Sergienko, D.Varda, E.Sinyakov
Blagoveschensk Educational State University, Blagoveschensk
K.Ivanov, S.Yazev, N.M.Budnev, O.Gres, O.Chuvalaev, V.A.Poleshchuk
Irkutsk State University
V.Krushinski, I.Zalozhnih, A. Popov
Ural Federal University, Kourovka
Hugo Levato and Carlos Saffe
Instituto de Ciencias Astronomicas, de la Tierra y del Espacio (ICATE)
Claudio Mallamaci, Carlos Lopez and Federico Podest
Observatorio Astronomico Felix Aguilar (OAFA)
MASTER II robotic telescope (MASTER-Net: http://observ.pereplet.ru)
located in Kislovodsk was pointed to the GRB130122A 28 sec s after
notice time and 91 sec after GRB time at 2013-01-22 23:45:40 UT in two
polarizations.
The weather conditions were not very good and continuosly deteriorated.
On our first (20s exposure) double set we marginally find an optical
transient at the Swift UVOT position (Lien et al., GCN 14140) with
unfiltered magnitude 16.8+-0.3 (m = 0.8R + 0.2B from USNO-B).
This message may be cited.
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И наш телескоп тоже увидел:
Alex:И наконец, самое важное, на некоторых кадрах источник виден, так что наблюдения НЕ бесполезны.
правда, придется повозиться, чтобы разобраться с фотометрией (в облаках это делать ... сложно).
Молодцы, ребята!!
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Ну пока об этом знают только избранные ;)
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Да, пока это тест сетапа и операторов по реальному GRB. Если Алексей с Алиной вытянут в кадре что-то полезное, то вообще хорошо.
Женя Ромас начал разбираться с RTS2, в расчёте на Терскол (апрель?). Будьь с ним на контакте, пожалуйста.
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Для начала нужно проверить поддержку нужного нам железа, например SiTech, пока, RTS2 не поддерживает, общался с Петром.
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Там контроллер Андрейчика, A@I - подходит?
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TITLE: GCN CIRCULAR
NUMBER: 14148
SUBJECT: GRB 130122A: optical observations
DATE: 13/01/24 10:05:37 GMT
FROM: Alexei Pozanenko at IKI, Moscow
A. Volnova (SAI MSU/IKI), V. Linkov (ISON-Kislovodsk), I. Molotov (KIAM),
V. Kouprianov (GAO), A. Pozanenko (IKI), report on behalf of larger
collaboration:
We observed the field of GRB 130122A (Lien et al., GCN 14140) with
SANTEL-400AN (0.4-m f/3) telescope of ISON-Kislovodsk observatory.
Observations started on Jan. 22 (UT) 23:44 and we obtained several
unfiltered images of 60 s and 100 s exposures. Initial part of our
observations were carried under unfavorable weather conditions. Starting on
Jan.23 (UT) 00:14:14 we clearly detect optical afterglow of GRB 130122A
(Lien et al., GCN 14140; Sonbas et al., GCN 14141; Gorbovskoy et al., GCN
14142) in single images of 60 s exposure. A preliminary photometry of
stacked images is based on USNO-B1.0 (R2) nearby stars:
T_start, T0+, Exp, Filter, OT
(UT) mid (d) (s)
00:14:14 0.00899 8x60 none 18.0 +/-0.1
00:47:45 0.04474 100 none 18.5 +/- 0.5
01:02:07 0.05579 4x60 none >17.3
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Там контроллер Андрейчика, A@I - подходит?
Нет, вроде как.
http://rts2.org/wiki/hw:start
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Наблюдение (первое?) в Абастумани.
TITLE: GCN CIRCULAR
NUMBER: 14201
SUBJECT: GRB 121128A: optical observations
DATE: 13/02/13 16:37:16 GMT
FROM: Alexei Pozanenko at IKI, Moscow
Yu. Krugly (Institute of Astronomy of Kharkiv National University),
R.Inasaridze, O. Kvaratskhelia(Abastumani Astrophysical Observatory),
I. Molotov (KIAM), A. Pozanenko (IKI) report on behalf of larger GRB
follow-up collaboration:
We observed the field of the Swift Swift GRB 121128A (Oates et al., GCN
14007)with AC-32 (0.7m Maksutov) telescope of Abastumani Observatory,
starting on Nov. 28 (UT) 15:28. We took several unfiltered images of 300
s exposure. We detected the afterglow (Oates et al., GCN 14007; Japelj
et al., GCN 14008) in stacked images. The photometry of a the stacked
image is based on USNO-B1.0 stars (R2):
Start, T0+, Filter, Exp., OT
(UT) (mid),days
15:27:50 0.4479 none 9x300 20.24 +/- 0.12
16:18:59 0.4853 none 8x300 20.35 +/- 0.16
17:09:58 0.5208 none 8x300 20.38 +/- 0.18
18:01:17 0.5544 none 9x300 20.55 +/- 0.22
18:46:44 0.5871 none 8x300 20.84 +/- 0.36
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TITLE: GCN CIRCULAR
NUMBER: 14200
SUBJECT: GRB 121123A: optical observations
DATE: 13/02/13 16:34:45 GMT
FROM: Alexei Pozanenko at IKI, Moscow
Yu. Krugly (Institute of Astronomy of Kharkiv National University),
R.Inasaridze, O. Kvaratskhelia(Abastumani Astrophysical Observatory),
I. Molotov (KIAM), A. Pozanenko (IKI) report on behalf of larger GRB
follow-up collaboration:
We observed the field of the Swift GRB 121123A (Helder et al., GCN
13982) with AC-32 (0.7m Maksutov) telescope of Abastumani Observatory,
starting on Nov. 23 (UT) 15:18. We took several unfiltered images of 180
s exposure. We clearly detected the afterglow (Helder et al., GCN 13982;
Zhao et al., GCN 13983) in every single image. The photometry of the
stacked images is based on USNO-B1.0 stars (R2):
Start, T0+, Filter, Exp., OT
(UT) (mid),days
15:18:28 0.2229 none 4x180 19.01 +/- 0.10
15:33:10 0.2337 none 4x180 18.96 +/- 0.09
15:48:15 0.2448 none 4x180 18.88 +/- 0.08
16:02:57 0.2551 none 4x180 19.17 +/- 0.11
16:02:57 0.2642 none 4x180 18.94 +/- 0.10
16:28:40 0.2729 none 4x180 19.06 +/- 0.11
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TITLE: GCN CIRCULAR
NUMBER: 14337
SUBJECT: GRB 130327A: ISON-NM optical upper limit
DATE: 13/03/27 09:59:23 GMT
FROM: Alexei Pozanenko at IKI, Moscow
L. Elenin (KIAM), A. Volnova (SAI MSU), I. Molotov (KIAM), A. Pozanenko
(IKI) report on behalf of larger GRB follow-up collaboration:
We observed the field of the Swift GRB 130327A (Ukwatta, et al., GCN
14331) with 0.45-m telescope of ISON-NM observatory on Mar. 27,
between (UT) 02:44:04 - 03:27:54. We took several unfiltered images of
30 s exposures. Within enhanced XRT afterglow position (Osborne et al.,
GCN 14335) we do not detect any new object. We marginally (S/N~2.5, R~
20.3) detected "second uncatalogued source" (Morgan et al., GCN 14333;
Butler et al., GCN 14334) at RA , DEC (J2000): 06 08 09.06 +55 42 48.5.
A photometry of combined image is based on the USNO-B1.0 (R2)
nearby stars
Start, T0+, Exposure, OT, UL (3 sigma)
(UT) mid, d (s)
02:44:04 0.0546 60x30 n/d 20.0
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TITLE: GCN CIRCULAR
NUMBER: 14428
SUBJECT: GRB 130420A: ISON-NM optical observations
DATE: 13/04/21 03:58:45 GMT
FROM: Alexei Pozanenko at IKI, Moscow <apozanen@iki.rssi.ru>
L. Elenin (KIAM), A. Volnova ( IKI), V. Savanevych (KNURE), A.
Bryukhovetskiy (NSFCTC), I. Molotov (KIAM), A. Pozanenko (IKI) report on
behalf of larger GRB follow-up collaboration:
We observed the field of the Swift GRB 130420A (Page et al., GCN 14406)
with 0.45-m telescope of ISON-NM observatory on Apr. 20, between (UT)
07:30:54 - 10:51:49. The observation started automatically 144 s after
burst trigger. We took several unfiltered images of 30, 60 and 300 s
exposures. The optical counterpart of GRB 130418A (Guidorzi et al., GCN
14405; Page et al., GCN 14406; Guver et al., GCN 14407) is clearly visible
in single images.
Coordinates of the counterpart are (J2000) RA = 13:04:25.56 Dec =
+59:25:26.8 with uncertainties of 0.2" coincide with the coordinates
reported early (Guidorzi et al., GCN 14405, Guver et al., GCN 14407).
A photometry of single and later combined image is based on the SDSS stars
with assumed R-magnitude
J130421.49+592547.6 R = 16.13
J130416.49+592509.2 R = 16.95
J130443.88+592659.3 R = 14.54
Preliminary light curve can be found at
http://grb.rssi.ru/GRB130420A/GRB130420A_lightcurve_ISON-NM.png
The light curve is clearly exhibit a fast rise and peaked with 16.1 mag at
~0.0207days after burst trigger following steep power law decay and later at
0.05 days swallowing to the typical afterglow power law.
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По алерту снимаю и уже обрабатываем СВЕРХЯРКИЙ GRB! Ярче 12m!!!
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TITLE: GCN CIRCULAR
NUMBER: 14450
SUBJECT: GRB 130427A: early optical observations
DATE: 13/04/27 08:46:41 GMT
FROM: Alexei Pozanenko at IKI, Moscow
L. Elenin (KIAM), A. Volnova ( IKI), V. Savanevych (KNURE), A.
Bryukhovetskiy (NSFCTC), I. Molotov (KIAM), A. Pozanenko (IKI) report on
behalf of larger GRB follow-up collaboration:
We started observation of the field of the Swift GRB 130427A (Maselli et
al., GCN 14448) with 0.45-m telescope of ISON-NM observatory on Apr. 27
(UT) 07:50:17.
On the first images of 30 s exposure we identified very bright optical
counterpart of GRB 130427A (Maselli et al., GCN 14448) at about 12m in the
intitial images.
The coordinates of the counterpart are (J2000) 11 32 32.84 +27 41 56.2 with
uncertainties of about 1".
Observations are continuing.
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По алерту снимаю и уже обрабатываем СВЕРХЯРКИЙ GRB! Ярче 12m!!!
Ни фига себе :crazy:
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Автомат Gamma-CLT его опять поймал!
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Предварительная фотометрия по 60x30sec кадрам снятым по алерту.
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Вот что пишет Fermi об этом всплеске...
the most intense and fluent GRB detected by Fermi GBM
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Российские ученые зафиксировали ярчайшую гамма-вспышку за пять лет.
http://ria.ru/science/20130428/935016581.html
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TITLE: GCN CIRCULAR
NUMBER: 14474
SUBJECT: GRB 130427A: optical observations in CrAO
DATE: 13/04/27 21:13:31 GMT
FROM: Alexei Pozanenko at IKI, Moscow
A. Volnova ( IKI), D. Shakhovskoy (CrAO), V. Rumyantsev (CrAO), A.
Pozanenko (IKI) report on behalf of larger GRB follow-up collaboration:
We started observation of the field of the Swift GRB 130427A (Maselli et
al., GCN 14448) with AZT-11 telescope of CrAO observatory on Apr. 27 (UT)
18:21:45 in VRI filters. We clearly detect still bright optical counterpart
of GRB 130427A (Maselli et al., GCN 14448, Elenin et al. GCN 14450, Perley
GCN 14451). Preliminary photometry is following
filter tstart (UT) exp,s T-t0,d OT +/- err
R 18:21:45 120 0,76580 16,71 +/- 0,06
R 18:27:52 120 0,77005 16,87 +/- 0,06
R 18:34:00 120 0,77431 16,83 +/- 0,07
R 18:40:07 120 0,77855 16,81 +/- 0,06
Observation is continuing.
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Российские ученые зафиксировали ярчайшую гамма-вспышку за пять лет.
http://ria.ru/science/20130428/935016581.html
Можно было добавить, что эту вспышку мы наблюдали именно кооперацией - еще и в Уссурийске, Благовещенске, Хуралтоготе и Научном-1.
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Мы это писали вчера днем-вечером. Еще никто не наблюдал. И весь сыр-бор в том что поймали по алерту и увидили и опубликовали первыми. Сейчас его кто только не наблюдал :)
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Крымская РТ-22 отличилась.
TITLE: GCN CIRCULAR NUMBER: 14505
SUBJECT: GRB 130427A: CrAO RT-22 36 GHz observation
DATE: 13/04/29 20:35:17 GMT
FROM: Alexei Pozanenko at IKI, Moscow
A. Volvach (CrAO), L. Volvach (CrAO), A. Pozanenko (IKI) on behalf of larger collaboration report:
We observed the field of GRB 130427A (Maselli et al., GCN 14448 ) on Apr. 28 between (UT) 16:22-18:41 with 22-m radio telescope RT-22 of Crimean Astrophysical Observatory at mean frequency of 36 GHz. At the position of the optical (Elenin et al., GCN 14450; Perley et al., GCN 14451) and radio afterglow (Zauderer et al., GCN 14480; Zauderer et al., GCN 14482; Perley, GCN 14494) we detected a source with a flux 1.9 ± 0.4 mJy at T_mid = 1.405 days after burst trigger.
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Да, редкий случай
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Ура!! В Монголии удалось отнаблюдать послесвечение гамма-всплеска.
ОТ GRB 130427A виден
Виктор Тунгалаг и Баярбат - молодец!!
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TITLE: GCN CIRCULAR
NUMBER: 14756
SUBJECT: GRB 130604A: ISON-NM optical upper limit
DATE: 13/06/04 09:48:21 GMT
FROM: Alexei Pozanenko at IKI, Moscow <apozanen@iki.rssi.ru>
L. Elenin (KIAM), V. Savanevych (KNURE), A. Bryukhovetskiy (NSFCTC), I.
Molotov (KIAM), A. Pozanenko (IKI) report on behalf of larger GRB
follow-up collaboration:
We observed of the field of the Swift GRB 130604A (Melandri et al., GCN
14752) with 0.45-m telescope of ISON-NM observatory on June. 04 (UT)
06:56:11, i.e. 105 s after burst trigger. Series of 30 s and 60 s exposures
were obtained in clear filter. In the combined image of the first 3 images
we do not detect afterglow candidate (Perley, GCB 14753). Preliminary
photometry is based on the USNO-B1.0 (R2) nearby stars:
UT start, T0+ Exposure, OT, UL (3 sigma)
days s
06:56:11 0.0019 3x30 n/d 19.7
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Сейчас на сумме первых 9 кадров нашли очень слабый источник...
Кстати, пока мы первые навелись. Начали снимать через 105 секунд после вспышки и через 61 секунду после получения алерта.
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TITLE: GCN CIRCULAR
NUMBER: 14758
SUBJECT: GRB 130604A: further ISON-NM optical observation
DATE: 13/06/04 11:11:35 GMT
FROM: Alexei Pozanenko at IKI, Moscow <apozanen@iki.rssi.ru>
L. Elenin (KIAM), V. Savanevych (KNURE), A. Bryukhovetskiy (NSFCTC), I.
Molotov (KIAM), A. Pozanenko (IKI) report on behalf of larger GRB follow-up
collaboration:
After further inspection of images after observation of the Swift GRB
130604A (Melandri et al., GCN 14752) with 0.45-m telescope of ISON-NM
(Elenin, et al., GCN 14756) we identified faint object (S/N ~ 3) in
coordinates (J2000) 16 40 45.34 +68 13 34.5 with uncertainty of 0.2" (in
both coordinates). Within errors this position coincides with the afterglow
candidate (Perley, GCB 14753) and the error circle of XRT reported by
Melandri et al. (GCN 14752). This object is not detected in our later
combined images and can be the afterglow of GRB 130604A. Preliminary
photometry of our images obtained in clear filter is based on USNO-B1.0
(R2) nearby stars:
UT start, T0+ Exposure, OT, UL (3 sigma)
mid,days s
06:56:11 0.0019 3x30 n/d 19.7
06:56:11 0.0035 9x30 20.3 +/- 0.3 20.0
06:56:11 0.0091 30x30 n/d 20.5
06:56:11 0.0171 60x30 n/d 20.8
Finding chart can be found at
http://grb.rssi.ru/GRB130604A/GRB130604A_ISON_NM_9x30.png
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Кстати, пока мы первые навелись. Начали снимать через 105 секунд после вспышки и через 61 секунду после получения алерта.
Крутяк :mad:
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TITLE: GCN CIRCULAR
NUMBER: 14860
SUBJECT: GRB 130610A: ISON-NM optical observations
DATE: 13/06/10 18:56:07 GMT
FROM: Alexei Pozanenko at IKI, Moscow <apozanen@iki.rssi.ru>
L. Elenin (KIAM), V. Savanevych (KNURE), A. Bryukhovetskiy (NSFCTC),
I. Molotov (KIAM), A. Pozanenko (IKI) report on behalf of larger GRB
follow-up collaboration:
We observed of the field of the Swift GRB 130610A (Cummings et al.,
GCN 14842) with 0.45-m telescope of ISON-NM observatory starting on
June, 10 (UT) 03:53:49. Series of 30 s exposures were obtained in clear
filter. In the combined images we detect afterglow (Cummings et al.,
GCN 14842; Melandri et al., GCN 14843; Trotter et al., GCN 14844).
Preliminary photometry is based on the SDSS nearby stars:
UT start, T0+ Filter Exposure, OT,
days s
03:53:49 0.03531 none 25*30 19.33 ± 0.07
04:12:33 0.04831 none 25*30 19.56 ± 0.10
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TITLE: GCN CIRCULAR
NUMBER: 14861
SUBJECT: GRB 130608A: ISON-Kislovodsk optical upper limit
DATE: 13/06/10 20:01:43 GMT
FROM: Alexei Pozanenko at IKI, Moscow <apozanen@iki.rssi.ru>
A. Volnova (IKI), V. Linkov (ISON), M.Suvorov (ISON), V. Nevskiy (ISON),
D. Ivanov (ISON), I. Molotov (KIAM), A. Pozanenko (IKI), report on
behalf of larger collaboration:
We observed the field of GRB 130608A (Krimm et al., GCN 14827) with
SANTEL-400AN (0.4-m f/3) telescope of ISON-Kislovodsk observatory.
Observations started on Jun. 09 (UT) 00:01:42. We obtained several
unfiltered images of 60 s exposure. We do not detect any source within
enhanced XRT error circle (Beardmore et al., GCN 14832). Preliminary
photometry of combined image is based on USNO-B1.0 (R2) nearby stars:
T_start, T0+, Exp, Filter, UL (3 sigma)
(UT) mid (d) (s)
2013-06-09T00:01:42 0.04170 960 none >18.1
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TITLE: GCN CIRCULAR
NUMBER: 14864
SUBJECT: GRB 130606A: CrAO optical upper limit
DATE: 13/06/11 00:18:42 GMT
FROM: Alexei Pozanenko at IKI, Moscow <apozanen@iki.rssi.ru>
V. Rumyantsev (CrAO), N.Pit' (CrAO), А. Volnova (IKI), A. Pozanenko (IKI)
report on behalf of larger GRB follow-up collaboration:
We observed the field of the Swift GRB 130606A (Ukwatta et al., GCN
14781) with AZT-11 telescope of CrAO observatory starting on June 06
(UT) 21:59:60. We took several images in R-filter of 180 s exposure. The
afterglow (Jelinek et al., GCN 14782; Xu et al., GCN 14783; Nagayama et
al., GCN 14784) is not detected in a combined image. A photometry is
based on the same SDSS stars we used in GCN 14806:
Start T0+, Filter Exposure, OT, UL (3 sigma)
UT mid, d (s)
21:59:60 0.0489 R 10x180 n/d 20.7
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TITLE: GCN CIRCULAR
NUMBER: 14890
SUBJECT: GRB 130612A: ISON-NM optical observations
DATE: 13/06/12 21:13:30 GMT
FROM: Alexei Pozanenko at IKI, Moscow <apozanen@iki.rssi.ru>
L. Elenin (KIAM), A. Volnova (IKI), V. Savanevych (KNURE), A.
Bryukhovetskiy (NSFCTC), I. Molotov (KIAM), A. Pozanenko (IKI) report on
behalf of larger GRB follow-up collaboration:
We observed of the field of the Swift GRB 130612A (Racusin et al., GCN
14874) with 0.45-m telescope of ISON-NM observatory starting on June,
12 (UT) 04:06:14. Series of 30 s exposures were obtained in clear
filter. In the combined images we detected afterglow (Racusin et al.,
GCN 14874; Melandri et al., GCN14875) in coordinates (J2000) 17 19 10.63
+16 43 12.0. Preliminary photometry is based on the USNO-B1.0
1067-0299350 star assuming R=18.92.
UT start, T0+ Filter Exposure, OT
mid,d s
2013-06-12T04:06:14 0.0305 none 30*30 20.75 +/- 0.15
2013-06-12T04:29:28 0.0466 none 30*30 21.25 +/- 0.20
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Сегодня с Алексеем Позаненко провели небольшое совещание по программе наблюдения гамма-всплесков силами нашей сети.
Главная цель обеспечить максимально быстрое время реакции на алерт. Смс к сожалению приходит с приличной задержкой. Ни на одной обсерватории пока нет автоматизированной системы работы по алертам. В Хаосе ее нет и уже скорее всего не будет. Вся надежда на FORTE.
В настоящий момент создается наш собственный VOEvent брокер, который уже сейчас принимает алерты посредством подключения напрямую к сокетам VOEvent. Тем самым достигается время реакции менее 0.5 сек. Всю автоматизацию последующего процесса наблюдений, я надеюсь, мы сможем осуществить с FORTE. Для пользователей Хаоса, т.е. практически всей сети предлагается автоматическое генерирование задания на наблюдения в формате Хаоса и рассылка по всем обсерваториям. Эта информация скорее всего придет много раньше смс, так что если кто будет у компа, просьба реагировать как можно быстрее. Нужно понять что 15-30 минутная задержка не так критична для 1-м+ телескопов, а для нас это обычно уже не публикабельно. Т.е. мы можем брать только бысрой реакцией и полным покрытием суточной кривой блеска. Как практически получилось со всплеском GRB 130427A.
Для реализации этой задачи нужно составить некую карточку обсерватории - координаты обсерватории, тип(ы) телескопа доступный для работы по алертам. Исходя из этих данных автомат будет решать кому какой алерт отправлять, например, алерт с радиусом локализации 3 градуса, от Fermi GBM, бессмысленно отправлять телескопу с полем 1 градус и т.д.
Но пока это полумера, нужна полная автоматизация FORTE + VOEvent, надеюсь нам это удастся сделать в не самом далеком будущем.
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Для пользователей Хаоса, т.е. практически всей сети предлагается автоматическое генерирование задания на наблюдения в формате Хаоса и рассылка по всем обсерваториям. Эта информация скорее всего придет много раньше смс, так что если кто будет у компа, просьба реагировать как можно быстрее.
А когда это заработает?
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Программа работает в первом приближении, т.е. получает данные и анализирует их. Нужно добавить фильтры, по тому же радиусу локализации. Добавить функцию генерирования плана наблюдений. Буду двигаться дальше уже после отпуска, с середины июля. Думаю в августе что-то уже будет.
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TITLE: GCN CIRCULAR
NUMBER: 14919
SUBJECT: Swift Trigger 558631: AAO optical observations
DATE: 13/06/22 13:42:50 GMT
FROM: Alexei Pozanenko at IKI, Moscow
A. Volnova (IKI), R.Inasaridze (AAO), O. Kvaratskhelia (AAO), V.
Ayvazian(AAO), Yu. Krugly (IA KhNU), I. Molotov (KIAM), A. Pozanenko
(IKI) report on behalf of larger GRB follow-up collaboration:
Following trigger Swift #558631 (Barlow et al., GCN 14917) we imaged the
region of the trigger with starting on June 21 (UT) 19:54:46. We
obtained 50 unfiltered images of 50 s exposure. We investigated a
combined image (mid time after the Swift trigger 0.75693 days) and
within BAT error circle (Barlow et al., GCN 14917) found one bright
source which is not catalogued in USNO-B1.0 but barely visible in DSS2
Red image. Coordinates of the source is (J2000) 18:07:13.13 -22:17:14.4.
It is apparent that the source is not coincident with known X-ray source
SAX_J1806.5-221. Brightness of the source is 17.09 +/- 0.03 calibrating
against nearby USNO-B1.0 stars (R2).
At present time it is not clear if the source is related to the Swift
#558631 trigger. The source also can be a new cataclysmic variable with
magnitude of the outburst of ~3m.
A finding cahart can be found in
http://grb.rssi.ru/Swift_558631/Swift_558631_chart.png
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Еще одно наблюдения гамма-всплеска в Абастумани
TITLE: GCN CIRCULAR
NUMBER: 14919
SUBJECT: Swift Trigger 558631: AAO optical observations
DATE: 13/06/22 13:42:50 GMT
FROM: Alexei Pozanenko at IKI, Moscow
Following trigger Swift #558631 (Barlow et al., GCN 14917) we imaged the
region of the trigger with starting on June 21 (UT) 19:54:46.
А чего забыли телескоп вставить?
We obtained 50 unfiltered images of 50 s exposure. We investigated a
combined image (mid time after the Swift trigger 0.75693 days) and
within BAT error circle (Barlow et al., GCN 14917) found one bright
source which is not catalogued in USNO-B1.0 but barely visible in DSS2
Red image. Coordinates of the source is (J2000) 18:07:13.13 -22:17:14.4.
The source also can be a new cataclysmic variable with
magnitude of the outburst of ~3m.
Да нет, никакая это не катаклизмическая переменная! Обычная звезда - красный гигант, каких в плоскости Млечного Пути полно. Посмотрите на ее величины в каталоге 2MASS:
2MASS 18071311-2217149 J=11.397+/-0.024 H=9.695+/-0.027 K=8.982+/-0.024
Ключевое слово здесь - unfiltered. Объект с J=11.4 и K=9.0, едва видимый на красной пластинке DSS, легко даст в интегральном свете 17m или ярче. Да и на ИК-пластинках DSS 1979 и 1980 годов он прекрасно виден, причем с одним и тем же блеском.
А вот в 5' от центра поля действительно есть интересный синий объект со значительной переменностью!
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TITLE: GCN CIRCULAR
NUMBER: 14988
SUBJECT: GRB
DATE: 13/07/05 14:48:13 GMT
FROM: Alexei Pozanenko at IKI, Moscow <apozanen@iki.rssi.ru>
A. Pozanenko (IKI), A. Volnova (IKI), O. Burhonov (UBAI), I. Molotov
(KIAM) report on behalf GRB follow-up collaboration:
We observed the field of OT (Singer et al., GCN 14967) of GRB 130702А
(= Fermi 394416326)(Cheung et al., GCN 14971; Collazzi et al., GCN
14972) with AZT-22 telescope of Maidanak observatory on Jul. 3 and Jul.
4 under good weather conditions and seeing (FWHM) of about 1 arcsec. We
clearly detected OT (Singer et al., GCN 14967) in each images of both
epochs.
A preliminary photometry of combined images is based on the two SDSS
stars suggested by Schulze et al. (GCN 14978), i.e.
SDSS J142915.86+154510.0 assuming R = 16.03
SDSS J142911.60+154535.2 assuming R = 15.59
T_start T0+ Filter, Exposure, OT
(UT) (mid, d) (s)
2013-07-03T17:38:18 1.70828 R 6x600 18.69 +/- 0.03
2013-07-04T16:49:20 2.67427 R 6x300 19.31 +/- 0.04
We note that the fading of a lc assuming a power law between our two
epochs is alpha=1.27 which is steeper, than reported in early
observations (Perley et al., GCN 14981).
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TITLE: GCN CIRCULAR
NUMBER: 14996
SUBJECT: GRB 130702á: Maidanak optical observations
DATE: 13/07/09 10:46:20 GMT
FROM: Alexei Pozanenko at IKI, Moscow <apozanen@iki.rssi.ru>
A. Pozanenko (IKI), A. Volnova (IKI), O. Burhonov (UBAI), I. Molotov (KIAM)
report on behalf of larger GRB follow-up collaboration:
We continue observations of the afterglow (Singer et al., GCN 14967) of GRB
130702á (Cheung et al., GCN 14971; Collazzi et al., GCN 14972) with
AZT-22 telescope of Maidanak observatory. A preliminary photometry of
combined images is based on two SDSS stars suggested by Schulze et al. (GCN
14978) and used in our previous observations (Pozanenko et al, GCN 14988)
T_start T0+ Filter, Exposure, OT
(UT) (mid, d) (s)
2013-07-05T16:25:11 3.6592 R 6x600 19.61+/-0.02
2013-07-06T16:20:12 4.6540 R 6x600 19.71+/-0.03
2013-07-07T16:45:34 5.6717 R 6x600 19.83+/-0.04
2013-07-08T16:49:14 6.6759 R 6x300 19.81+/-0.05
The light curve is based on the photometry of this CGN circular and our
previous observations (Pozanenko et al, GCN 14988) and can be found at
http://grb.rssi.ru/GRB130702A/GRB130702A_MAO_R_lc.png
One can see flattening of the lc after 4 days (initially reported by Butler
et al., GCN 14993) and possible re-brightening on 6.6 days which can
confirm re-brightening of the afterglow (Schulze et al., GCN 14994) and
emerging supernova.
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TITLE: GCN CIRCULAR
NUMBER: 15003
SUBJECT: GRB 130702A: Maidanak optical observations
DATE: 13/07/11 16:11:27 GMT
FROM: Alexei Pozanenko at IKI, Moscow
A. Pozanenko (IKI), A. Volnova (IKI), O. Burhonov (UBAI), I. Molotov
(KIAM) report on behalf of larger GRB follow-up collaboration:
We continue observations of the afterglow (Singer et al., GCN 14967) of
GRB 130702A (Cheung et al., GCN 14971; Collazzi et al., GCN 14972)
with AZT-22 telescope of Maidanak observatory. A preliminary photometry
of combined images is based on two SDSS stars suggested by Schulze et
al. (GCN 14978) and used in our previous observations (Pozanenko et al,
GCNs 14988, 14996)
T_start T0+ Filter, Exposure, OT
(UT) (mid, d) (s)
2013-07-09T16:50:52 7.6771 R 7x600 19.73+/-0.04
2013-07-10T17:18:05 8.6931 R 6x600 19.64+/-0.03
The light curve can be found at
http://grb.rssi.ru/GRB130702A/GRB130702A_MAO_R_lc.png
It is clearly visible in the lc a rising SN (Schulze et al., GCN 14994;
Cenko et al., GCN 1998; D'Elia et al., GCN 15000).
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Сегодня произошел очень яркий (14.1m) гамма-всплеск GRB 130831A.
Послесвечение обнаружено на телескопе Фолкеса.
23:54:29.89 +29:25:46.2
Наблюдайте все кто может.
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Поисковая карта.
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Как и планировал, с 1 сентября готов начать рассылку алертов по гамма-всплескам. Кто заинтересован в наблюдениях, кидайте контактное мыло на l.elenin
В получаемом письме идет главная информация по GRB - номер события, координаты и область локализации. Пока работаем по Свифту и Интегралу, скоро добавлю логику по Ферми.
Во вложении находится файл для ХАОСа.
Со временем алерты будут приходить только тем, у кого всплеск доступен для наблюдения в данный момент времени, пока это считается только для ISON-NM.
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А что делаем с рассылкой от Позаненко?
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Моя рассылка для тех кто хочет наблюдать реально быстро. Я слушаю сокеты НАСА и сразу посылаю алерт. Другой вопрос что для этого нужна полная автоматизация, как в НМ. Вообщем алерт от меня должны получать раньше, а дальше все зависит от наблюдателя.
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Отлично, большой шаг в борьбе за "первую минуту".
Во вложении находится файл для ХАОСа.
Можно глянуть пример для какого-нибудь GRB и ИП?
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Вот, по сегодняшнему.
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Подключился Благовещенск.
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Интеграл и Свифт зафиксировали одну и ту же вспышку. Наблюдаем!
VOEvent monitor v0.1.1 recieved real alert from INTEGRAL (via VO-GCN) on 2013-09-04T16:39:42.
Trigger #6931
RA = 17:07:30.312 Dec = -32:00:41.04
Event localization is 0.06
VOEvent monitor v0.1.1 recieved real alert from VO-GCN on 2013-09-04T18:36:49.
Trigger #20296
RA = 17:07:30.216 Dec = -32:00:41.04
Event localization is 0.07
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Леня, а твои алерты будут исключительно по GRB или триггеры и прочее тоже будут прилетать?
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Денис, на втором этапе добавлю алерты по сверхновым и новым.
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Не, я к тому, что нам бы уметь их отличать. От Позаненко А. которые, мы реагировали только на те, где написано This is GRB. У тебя как-то сейчас обозначается где GRB а где нет?
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Реагируйте на все что от меня приходит :)
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Эх, вот если бы от тебя деньги приходили ... :mad:
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Деньги-то чё - деньги можно и завтра получить. А вот смска типа: "Все в ружье, над вами суперважный всплеск гамма-куска астероида космического мусора!!!" - это да... Тут главное штаны не забыть надеть... :bud:
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... и что характерно - как правило, посреди ночи, когда нормальные люди спят! :crazy:
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Ну, в принципе, наблюдать-то можно и без штанов.
И, кому как, Лёня-то как раз днём наблюдает.
У меня давно бродят мысли наладить обмен обсерваториями, чторбы, допустим, боливийцы наблюдают в Благовещенске, а благовещенцы - в Тарихе. Тогда все днем будут наблюдать, как хорошо. :crazy:
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Главное автоматизировать процесс. Ночь в НМ может начинаться в 5-6 утра по Москве, так что телескоп работает сам. Тем более что у меня редко бывает время сидеть все наблюдательное время и контролировать процесс, обычно я вмешиваюсь только по экстренным случаям. Ну и в процессе обработки полученных данных, конечно.
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Вот я сегодня показывал процесс. Два монитора, на одном - управление обсерваторией, на втором - обработка данных в CLT. Между мониторами 1 сантиметр и 9500 км. Кадры с обсерватории складываются, сжимаются, передаются в Москву, разжимаются и подаются на блюдечке CLT. В принципе, чтобы не слыть ленивым диванным астрономом, можно было сидеть, вручную их архивировать, вручную их пересылать по ФТП, тут разархивировать, переписывать на вход CLT, но мне уж очень лениво ;D
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Ну, в принципе, наблюдать-то можно и без штанов.
Веб-камеры же стоят... :crazy:
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У меня давно бродят мысли наладить обмен обсерваториями, чторбы, допустим, боливийцы наблюдают в Благовещенске, а благовещенцы - в Тарихе.
Такое имеет смысл тогда, когда везде всё одинаково отлажено и работает как часы - и есть некий надзорный орган, контролирующий эту отлаженность. У американцев в армии (в широком смысле - т.е. и в ВВС, и в ВМС, КМП) что-то подобное сделано - НО! - на административных должностях.
https://www.youtube.com/watch?v=6sQEuZkvtoU
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Главное автоматизировать процесс. Ночь в НМ может начинаться в 5-6 утра по Москве, так что телескоп работает сам. Тем более что у меня редко бывает время сидеть все наблюдательное время и контролировать процесс, обычно я вмешиваюсь только по экстренным случаям. Ну и в процессе обработки полученных данных, конечно.
Нет, кроме хохм - а почему нет? Если единообразный интерфейс, четко расписанные смены (зоны ответственности по времени) и проч. Главное, чтобы не получалось так, что команда на каком-либо пункте начинает работать по штатному расписанию - тут бац, алерт, срочно наблюдайте!!! Через полчаса - бац, просьба проастрометрировать астероид (и тоже - с восклицательными знаками). Еще через пару часов - "Аааа!!! Над вами важный запуск, СРОЧНО измерить!!!"
Диспетчер нужен, короче гря. Диспетчерская служба. :umn:
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К системе оповещения подключился Вадим Линьков.
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Реагируйте на все что от меня приходит :)
Нет Леня, нужно все-таки объяснить, напомню, что инструмент все же ЦУ-шный и кидаться на все подряд, мы тоже не можем, у него другие задачи.
Например сегодня пришло:
VOEvent monitor v0.1.1 recieved real alert from INTEGRAL (via VO-GCN) on 2013-09-05T18:09:08.
Trigger #6932
RA = 05:45:09.312 Dec = +03:24:38.52
Event localization is 0.06
Starting observation (TEST MODE for ISON-NM)
CHAOS observation file in attachment.
В то же время от А.Позаненко не было ничего. Как такое может быть?
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К системе оповещения подключился Вадим Линьков.
Да, Лёня, пришло сообщение на мэйл.
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Главное, чтобы не получалось так, что команда на каком-либо пункте начинает работать по штатному расписанию - тут бац, алерт, срочно наблюдайте!!!
Приказ по ЗАО "Неастрономический антинаучный центр"
1. Настоящим Приказом установить график поступления ГРБ-алертов на сентябрь-ноябрь с.г.
2. Дежурным расчётам обеспечить выполнение наблюдений в соответствии с эксплуатационной документацией.
3. Довести настоящий Приказ до исполнителей в частях, их касающихся.
4. Контроль выполнения Приказа оставляю за собой.
<< >> сентября 20.. года Исполнительный директор ЗАО, генерал-майор Зайцев
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Нет Леня, нужно все-таки объяснить
Денис, вчера было два алерта по одному всплеску, сначала от Интеграла, потом от Свифта.
Их не было в рассылке Bacodine ("от Леши"), а в то же время, уже после пришло вот такое письмо...
TITLE: GCN CIRCULAR
NUMBER: 15180
SUBJECT: Swift follow-up of an INTEGRAL possible weak GRB
DATE: 13/09/04 21:07:26 GMT
FROM: Margaret Chester at PSU <chester@astro.psu.edu>
R.L.C. Starling (U. Leicester), F.E. Marshall (NASA/GSFC), M.M. Chester (PSU), and M. De Pasquale (UCL-MSSL) report on behalf of the Swift team:
Swift began a target of opportunity observation (target ID 20296) of INTEGRAL Weak Alert #6931/0 on September 4, 2013 at 18:37 UT, approximately 2 hours after the possible burst was detected by INTEGRAL. Its INTEGRAL coordinates are RA = 256.876 deg, Dec = -32.011 deg, with an error of 3.6 arcminutes (see http://www.ncac.torun.pl/~jubork/ibas/ibas?onlyyear=2013&onlymonth=9&slcn=weak).
The XRT began observing the field at 18:39:03.9 UT, 7.2 ks after the INTEGRAL trigger. No source was detected in 2.3 ks of promptly downlinked SPER data. We are waiting for the full 6 ks dataset to detect any source.
UVOT took a finding chart exposure of 150 seconds with the White filter starting 7170 seconds after the INTEGRAL trigger. No credible afterglow candidate has been found in the initial data products. Because of the density of catalogued stars, further analysis is required to report an upper limit for any new source.
Так что всплеск был, а в рассылке его не было. Я буду наблюдать все доступные алерты от меня, для этого и делал этот модуль. А наблюдать ли всем что приходит от меня, может скажет Леша Позаненко.
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Реагируйте на все что от меня приходит :)
Нет Леня, нужно все-таки объяснить, напомню, что инструмент все же ЦУ-шный и кидаться на все подряд
Чуть-чуть потерпи. Уже в воскресенье к вам вылетит Олег, и у вас появится новый инструмент для кидания на все подряд.
Опять же напоминаю про имеющийся и слабоиспользуемый ТАЛ-250.
Все ж таки мы позиционируем себя как научную сеть, поэтому и о науке не надо забывать. В этом одна из причин почему мы начали сейчас ставить дополнительные телескопы.
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Нет Леня, нужно все-таки объяснить
Денис, вчера было два алерта по одному всплеску, сначала от Интеграла, потом от Свифта.
Их не было в рассылке Bacodine ("от Леши"), а в то же время, уже после пришло вот такое письмо...
TITLE: GCN CIRCULAR
NUMBER: 15180
SUBJECT: Swift follow-up of an INTEGRAL possible weak GRB
DATE: 13/09/04 21:07:26 GMT
FROM: Margaret Chester at PSU <chester@astro.psu.edu>
R.L.C. Starling (U. Leicester), F.E. Marshall (NASA/GSFC), M.M. Chester (PSU), and M. De Pasquale (UCL-MSSL) report on behalf of the Swift team:
Swift began a target of opportunity observation (target ID 20296) of INTEGRAL Weak Alert #6931/0 on September 4, 2013 at 18:37 UT, approximately 2 hours after the possible burst was detected by INTEGRAL. Its INTEGRAL coordinates are RA = 256.876 deg, Dec = -32.011 deg, with an error of 3.6 arcminutes (see http://www.ncac.torun.pl/~jubork/ibas/ibas?onlyyear=2013&onlymonth=9&slcn=weak).
The XRT began observing the field at 18:39:03.9 UT, 7.2 ks after the INTEGRAL trigger. No source was detected in 2.3 ks of promptly downlinked SPER data. We are waiting for the full 6 ks dataset to detect any source.
UVOT took a finding chart exposure of 150 seconds with the White filter starting 7170 seconds after the INTEGRAL trigger. No credible afterglow candidate has been found in the initial data products. Because of the density of catalogued stars, further analysis is required to report an upper limit for any new source.
Так что всплеск был, а в рассылке его не было. Я буду наблюдать все доступные алерты от меня, для этого и делал этот модуль. А наблюдать ли всем что приходит от меня, может скажет Леша Позаненко.
И похоже рентгеновский источник таки нашли...
We do find a new X-ray source at position
RA (J2000) = 17 08 03.52
Dec (J2000) = -32 02 31.5
or RA, Dec = 257.0147, -32.0421 degrees
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Версия 0.1.2
Добавлено определение известный или не известный источник (в рассылке Bacodine, This is GRB), о чем писал Денис.
Но это только работает для Свифта, так как точности локализации Ферми не хватает. Так для вчерашнего всплеска финальная локализация (ground based), составила более 8 градусов.
Плюс учтены некоторые проблемы парсинга алертов. Надеюсь что будет работать более стабильно.
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Версия 0.1.3
Устранена ошибка утраты связи с сокетом при кратковременной потери интернет-соединения. Пока в режиме тестирования.
Добавлена возможность по перебору доступных для прослушивания ip-адресов, если текущий превысил время ожидания.
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Версия 0.1.4
Переписан модуль приема VOEvent пакета через сокет, устранена причина разрыва длинного пакета на несколько частей, из-за чего был невозможен его парсинг.
Добавлен модуль ответа нашего брокера серверу VOEvent о корректном приеме или не приеме алерта. Пока в тестовом режиме, так как мой брокер пока не зарегистрирован в системе.
Прочая борьба с багами.
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Сегодня был интересный случай.
В 2013-09-20T12:38:41 получен реальный алерт от ИНТЕГРАЛа. С координатами и точной локализацией.
Никакой информации от Bacodine ("от Алексея П.")
Через два с половиной часа, в 2013-09-20T14:58:42, пришел еще один алерт с более точной локализацией и уже с сообщением от Bacodine.
Позже пришел циркуляр - источник идентифицировали с SGR J1745-29 (источник с повторяющимся мягким гамма-излучением).
TITLE: GCN CIRCULAR
NUMBER: 15236
SUBJECT: INTEGRAL detection of a SGR-like burst likely from SGR J1745-29
DATE: 13/09/20 15:09:34 GMT
FROM: Sandro Mereghetti at IASF/CNR <sandro@iasf-milano.inaf.it>
S.Mereghetti (IASF-Milano), D.Gotz (CEA, Saclay), C.Ferrigno, E.Bozzo,
M.Tuerler (ISDC, Versoix), and J.Borkowski (CAMK, Torun) on behalf of the
IBAS Localization Team report:
An off-line analysis of the IBAS WEAK Alert n. 6947 shows that this
sub-threshold trigger (6.9 sigma) is due to a real event detected at
12:38:35.5 UT of September 20 in the IBIS/ISGRI data.
Its refined coordinates (J2000) are:
R.A.: 266.406 deg
DEC.: -29.019 deg
with an uncertainty of 2.6 arcmin (90% c.l.).
The burst had a duration of about 30 ms, a soft spectrum and a fluence of
about 2x10^-8 erg/cmq (20-100 keV).
Its position is consistent with that of SGR J1745-29 (Rea et al. 2013, ATel n.5032)
Вот вопрос Алексею, почему не пришло сообщение о первом алерте, потому что был чересчур слабый? И стоит ли наблюдать такие вещи?
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Сегодня был интересный случай.
В 2013-09-20T12:38:41 получен реальный алерт от ИНТЕГРАЛа. С координатами и точной локализацией.
Никакой информации от Bacodine
Вот вопрос Алексею, почему не пришло сообщение о первом алерте, потому что был чересчур слабый? И стоит ли наблюдать такие вещи?
из текста Бакодайн видно, что
> NOTICE_DATE: Fri 20 Sep 13 14:58:41 UT
т.е. бакодайн выпустил свой алерт в 14:58:41
однако, этот тип бакодайна называтся
> NOTICE_TYPE: INTEGRAL Offline
Что означет, что он приготовлен в рез. наземного анализа.
Однако, в поле
> GRB_TIME: 45516.68 SOD {12:38:36.68} UT
записано, что триггер был в 12:38:36.68
т.о. все сходится.
Бакодайн боле щепетилен в посылке алерта и ждал наземного анализа.
А явление одно и то же.
Теперь надо ли такое наблюдать...
В поле
> COMMENTS: probably_SGRJ1745-29_30ms_long_soft_burst
что возможно SGR,
На телесопах ИСОН такие явления - SGR, можно наблюадть если они не в плостокти Галактики, впрочем, таких мало. В Галактике их на широкопольном не разрешить.
Т.О. алгоритм надо дополнить проверкой на Галактические координаты, если +- 5 град, то наблюдать бесполезно.
А.
TITLE: GCN/INTEGRAL NOTICE
NOTICE_DATE: Fri 20 Sep 13 14:58:41 UT
NOTICE_TYPE: INTEGRAL Offline
TRIGGER_NUM: 6947, Sub_Num: 1
GRB_RA: 266.4059d {+17h 45m 37s} (J2000),
266.6240d {+17h 46m 30s} (current),
265.6114d {+17h 42m 27s} (1950)
GRB_DEC: -29.0189d {-29d 01' 07"} (J2000),
-29.0235d {-29d 01' 24"} (current),
-28.9995d {-28d 59' 57"} (1950)
GRB_ERROR: 2.60 [arcmin, radius, statistical only]
GRB_INTEN: 6.86 [sigma]
GRB_TIME: 45516.68 SOD {12:38:36.68} UT
GRB_DATE: 16555 TJD; 263 DOY; 13/09/20
SC_RA: 278.87 [deg] (J2000)
SC_DEC: -34.69 [deg] (J2000)
SUN_POSTN: 177.99d {+11h 51m 57s} +0.87d {+00d 52' 17"}
SUN_DIST: 89.23 [deg] Sun_angle= -5.9
(East of Sun)
MOON_POSTN: 10.58d {+00h 42m 18s} +6.92d {+06d 55' 22"}
MOON_DIST: 105.53 [deg]
GAL_COORDS: 359.93, -0.04 [deg] galactic lon,lat of the burst
ECL_COORDS: 266.84, -5.62 [deg] ecliptic lon,lat of the burst
COMMENTS: INTEGRAL GRB Coordinates.
COMMENTS: Time_Scale=0.0080 and Time_Error=2.0000.
COMMENTS: probably_SGRJ1745-29_30ms_long_soft_burst
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Добавил в TODO лист.
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TITLE: GCN CIRCULAR
NUMBER: 15290
SUBJECT: GRB 131002A: ISON-NM optical observations
DATE: 13/10/02 19:06:52 GMT
FROM: Alexei Pozanenko at IKI, Moscow <apozanen@iki.rssi.ru>
L. Elenin (KIAM), A. Volnova (IKI), I. Molotov (KIAM), A. Pozanenko
(IKI) report on behalf of larger GRB follow-up collaboration:
We observed optical transient(Guidorzi et al., GCN 15282) of the Swift
GRB 131002A (Barlow et al., GCN 15283) with 0.4-m SANTEL-400AN
telescope of ISON-NM observatory starting on Oct., 2 (UT) 06:55:23 (i.e.
58 s after burst trigger) in robotic mode. Series of 30 s exposures
were obtained in clear filter. After PSF subtraction of a nearby bright
star we clearly detect the optical transient in each single frames of
initial series. Coordinates of the optical transient are (J2000) 16 52
53.29 +82 03 15.6 with uncertainty of 0.25" in both coordinates.
Preliminary photometry is based on USNO-B1.0 (R2) stars. The maximum
brightness of the OT (15.2 +/- 0.05) was detected in the second frame
at 0.00141 days after trigger.
Light curve of the initial stage of the OT can be found at
http://grb.rssi.ru/GRB131002A/GRB131002A_ISON-NM_lc.png
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Это самое наше рекордное по быстроте наведение на алерт - через 45 секунд после его прихода.
Поэтому послесвечение гамма-всплеска удалось застать еще до его максимума - на этапе подъема. Новая монтировка существенно быстрее, чем Центурионовская.
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привет всем!
надо если есть погода, наблюдать новый GRB 131024A
GRB_RA: 144.5029d {+09h 38m 00.69s} (J2000),
GRB_DEC: +44.2712d {+44d 16' 16.3"} (J2000),
Если знаете как передать в Кисловодск, то передайте пож.
надо наблюдать 1 час
A
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Ярчайшая гамма-вспышка бросила тень на физику гамма-всплесков
http://ria.ru/space/20131121/978795695.html#ixzz2lJKgYWgj
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TITLE: GCN CIRCULAR
NUMBER: 15711
SUBJECT: GRB 131231A: AAO optical observations
DATE: 14/01/09 16:06:01 GMT
FROM: Alexei Pozanenko at IKI, Moscow
A. Volnova (IKI), R. Inasaridze (AAO), G. Inasaridze (AAO), V.
Zhuzhunadze (AAO), Yu. Krugly (IA KhNU), I. Molotov (KIAM), A. Pozanenko
(IKI) report on behalf of larger GRB follow-up collaboration:
We observed the optical counterpart of the Fermi/LAT GRB 131231A
(Sonbas et al., GCN 15640; Xu et al. GCN 15641) with AS-32 (0.7m)
telescope of Abastumani Observatory on Jan. 3, 4, and 5. We obtained
several unfiltered images of 120 s exposure during each observational
set. On stacked images we clearly detect the afterglow. The photometry
based on the reference stars, R-mag, from Halpern (GCN 15646) is following:
Date T_start t-t0, exp, OT
(UT) mid, d s
2014-01-03 17:08:16 3.54893 33x120 20.26 ± 0.06
2014-01-04 16:53:04 4.53207 29x120 20.32 ± 0.08
2014-01-05 15:59:46 5.50061 34x120 20.74 ± 0.13
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TITLE: GCN CIRCULAR
NUMBER: 15735
SUBJECT: GRB 140103A: AAO optical afterglow candidate
DATE: 14/01/14 20:23:50 GMT
FROM: Alexei Pozanenko at IKI, Moscow
A. Volnova (IKI), R. Inasaridze (AAO), G. Inasaridze (AAO), V.
Zhuzhunadze (AAO), Yu. Krugly (IA KhNU), I. Molotov (KIAM), A. Pozanenko
(IKI) report on behalf of larger GRB follow-up collaboration:
We observed the optical counterpart of the Swift GRB 140103A (Mangano et
al., GCN 15656) with AS-32 (0.7m) telescope of Abastumani Observatory on
Jan. 3 and 4. We obtained several unfiltered images of 120 s exposure
during each observational set. In the refined XRT position (Mangano, GCN
15666) we do not detect any object in stacked images. However we found a
fading object which is not present in SDSS catalog. The coordinates of
the obsjet is (J2000) RA=15 28 20.73, Dec = +37 45 28.8 with
uncertainity of 0.3" in each coordinate. The position of the fading
object is 5.2" from the refined XRT position (Mangano, GCN 15666). Due
to fading nature of the new object we suggest it as an afterglow of the
GRB 140103A.
Details of the photometry is following:
Date T_start t-t0, Filter Exp., OT err.
(UT) mid, d s
2014-01-03 01:21:18 0.03953 None 5*120 21.14 0.12
2014-01-03 01:34:40 0.05345 None 10*120 21.35 0.12
2014-01-03 02:01:21 0.07662 None 15*120 21.41 0.11
2014-01-04 01:47:48 1.08483 None 34*120 >22.3 (3 sigma)
The photometry is based on SDSS DR9 stars and gri -> R transformations
(Lupton):
N SDSS_id R(Lupton)
1 J152814.09+374706.3 18.20
2 J152819.83+374538.8 15.61
Finding chart and a light curve of the afterglow can be found in
http://grb.rssi.ru/GRB140103A/grb140103A_chart.png
and
http://grb.rssi.ru/GRB140103A/grb140103A_lc.PNG
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From: "Alexei Pozanenko"
Subject: Re[8]: GRB 140129B
Да, надо наблюдать новый GRB 140129B
GRB_RA: 326.7581d {+21h 47m 01.94s} (J2000),
GRB_DEC: +26.2063d {+26d 12' 22.6"} (J2000),
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Надо мне потихоньку начинать с GRB работать. Первые вопросы:
1) Сколько и каких снимков с какой выдержкой и с какими промежутками между ними делать? Про фильтр не спрашиваю, потому что на ОРИ-40 (средство 10262) пока работаем без фильтров.
2) Иногда алерты ложные. Стоит ли предпринимать съёмку при каждом алерте GCN/FERMI_GBM_FLT_POSITION приходящем по подписке на мэйл?
3) В случае, например, непогоды или техпроблем первая возможность провести съёмку после алерта может наступить спустя часы или сутки. Какое максимальное опоздание после алерта допустимо/приемлемо?
4) Нужно ли как-то обрабатывать полученные снимки или сразу отправлять их Алексею Позаненко?
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Алексей просит следующее:
1. 60 кадров по 30 секунд с часовым ведением, в интегральном свете. Контроль наведения по первому кадру (есть ли смысл ставить там какой-то solver с локальным каталогом, или будет быстрее перекачать и проверить у себя?).
2. Если в смс указано "This is a GRB", то безусловно.
3. Через сутки, наверное, да.
4. Просить оператора сделать калибровочный кадры, dark и flat (у них есть "майка"), проверить качество по заполнению гистограммы, синтезировать в Apex'е мастер-дарк и мастер-флет, просить Тунгалаг скачать их на флешку вместе с оригинальными FITSами (никакой предварительной обработки мы не делаем, этим занимается Алина Вольнова в ИКИ) и как можно быстрее залить их из Улан-Батора на FTP Позаненко.
Понятно, что появление оптоволокна снимет часть проблем, но пока работаем на лимитированном 3G.
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TITLE: GCN CIRCULAR
NUMBER: 15792
SUBJECT: GRB 140206A: ISON-Ussuriysk optical observations
DATE: 14/02/06 15:54:46 GMT
FROM: Alexei Pozanenko at IKI, Moscow <apozanen@iki.rssi.ru>
A. Volnova (IKI), A. Stepura (UAFO, ISON), A. Matkin (UAFO, ISON), I.
Molotov (KIAM), A. Pozanenko (IKI) report on behalf of larger GRB
follow-up collaboration:
We observed the afterglow (Oksanen et al., GCN 15786; Oate et al., GCN
15787) of the Swift and INTEGRAL GRB 140206A (Lien et al., GCN 15784;
Gotz et al., GCN 15785) with VT-50 (0.5m) telescope of
UAFO/ISON-Ussuriysk observatory starting on Feb. 6 (UT) 09:20:05, i.e.
~2 hours after burst trigger. We took unfiltered images of 30s
exposures. In stacked frames we clearly detect afterglow. A
preliminary photometry of the afterglow is following:
T_start T0+ Filter, Exposure, OT, OT_err
(UT) (mid, d) (s)
2014-02-06T09:20:39 0.08783 none 9*30 17.76 0.24
2014-02-06T10:52:26 0.15309 none 19*30 18.06 0.08
The photometry is based on reference stars SDSS-DR9, (R mag,
transformation by Lupton 2005)
N SDSS_id R(Lupton)errR
1 J094123.75+664429.9 15.441+/-0.013
2 J094126.54+664410.8 13.837+/-0.014
3 J094131.29+664857.0 13.972+/-0.011
Observations continuing.
The finding chart can be found in
http://grb.rssi.ru/GRB140206A/grb140206A_VT50_fc.png
-
TITLE: GCN CIRCULAR
NUMBER: 15810
SUBJECT: GRB 140209A: optical observations
DATE: 14/02/09 10:37:54 GMT
FROM: Alexei Pozanenko at IKI, Moscow
L. Elenin (KIAM), I. Molotov (KIAM), A. Pozanenko (IKI) report on behalf of
larger GRB follow-up collaboration:
We observed of the field of the Swift GRB 140209A (Cenko et al., GCN
15808) with 0.4-m telescope of ISON-NM observatory starting on Feb., 9 (UT)
07:43:39. Series of 30 s unfiltered exposure were obtained. In the combined
images we do not detect afterglow reported by Perley (GCN 15809).
However we detect possible object (#2) in coordinates (J2000) 05 25 25.55
+32 27 57.2 (uncertainties of 1 arcsec) which is the BAT localization circle
(Cenko et al., GCN 15808) and not present on DSS2(R). The object was
detected only on the combined image of first 10 frames, and not detected on
later combine images.
Preliminary photometry is based on USNO-B1.0 nearby stars:
UT mid, Filter Exposure, OT (3 sigma upper limit), object #2
s
07:45:32 none 10*30 > 18.7 18.2
+/- 0.2
07:58:47 none 10*30 > 18.4 n/d
08:14:05 none 10*30 > 18.3 n/d
-
TITLE: GCN CIRCULAR
NUMBER: 15846
SUBJECT: GRB 140215A: ISON-NM optical observations
DATE: 14/02/15 20:32:45 GMT
FROM: Alexei Pozanenko at IKI, Moscow <apozanen@iki.rssi.ru>
L. Elenin (KIAM), A. Volnova (IKI), I. Molotov (KIAM), A. Pozanenko (IKI)
report on behalf of larger GRB follow-up collaboration:
We observed of the field of the Swift GRB 140215A (Markwardt et al., GCN
15837) with 0.4-m telescope of ISON-NM observatory starting on Feb., 15
(UT) 04:08:22, i.e 72 seconds after Swift burst trigger. We took 35
unfiltered images of 30 s exposures. We clearly detect the bright optical
afterglow of GRB 140215A (Markwardt et al., GCN 15837; Cenko et al., GCN
15838) in each separate image. Coordinates of the optical afterglow
(J2000) 06 56 35.83 +41 47 11.4 (uncertainties of 0.5 arcsec) coincide with
OT coordinates (Markwardt et al., GCN 15837). Preliminary photometry is
following:
UT mid, T0+ Filter Exposure, OT, err OT
mid s
04:08:22 0.00101 none 30 13.60 0.03
04:37:01 0.02090 none 30 16.46 0.20
The photometry is based on USNO-B1.0 nearby stars:
N USNO-B1.0id RA Dec R2
1 1318-0183851 06:56:13.01 +41:49:29.2 12.37
2 1317-0181981 06:56:37.13 +41:44:34.4 14.39
3 1317-0181986 06:56:38.48 +41:44:12.8 14.50
The power law index of ~-1.2 of our light curve starting from 0.0025 days
and up to the end of our observations coincides with the index reported by
Perley and Cenko (GCN 15844).
-
TITLE: GCN CIRCULAR
NUMBER: 15850
SUBJECT: GRB140215A: Continued Discovery Channel Telescope Observations
DATE: 14/02/16 18:08:36 GMT
FROM: Vicki Toy at UMD <vtoy@astro.umd.edu>
V. Toy (UMD), S.B. Cenko (NASA-GSFC), A. Kutyrev (NASA-GSFC), J. Capone
(UMD), E. Troja (NASA-GSFC), A. Cucchiara (NASA-GSFC), S. Veilleux (UMD),
and S. Gezari (UMD) report on behalf of a larger collaboration:
We re-observed the bright optical afterglow of GRB140215A (Swift trigger
586680, Markwardt et al., GCN 15837, Cenko et al., GCN 15840) with the
Large Monolithic Imager (LMI) on the 4.3m Discovery Channel Telescope (DCT)
at Happy Jack, AZ from 2014/02/16 2:55 to 2014/02/16 4:05 UTC (0.95-1.0
days after the Swift-BAT trigger) in the g',r',i', and z' filters.
Compared with our previous observations, the afterglow continues to follow
an unbroken power law with decay index of alpha=-1.20 in all filters
(Perley et al., GCN 15844, and Elenin et al., GCN 15846), consistent with
the simultaneous temporal decay observed in the X-rays (Page et al., GCN
15845). Specifically we measure r' = 21.6 mag (AB) at a time of 23.5 hr
after the trigger, calibrating relative to USNO-B1.
We thank the entire staff of the Discovery Channel Telescope for assistance
with these observations.
-
TITLE: GCN CIRCULAR
NUMBER: 15856
SUBJECT: GRB 140211A: Khureltogot optical upper limits
DATE: 14/02/17 20:00:50 GMT
FROM: Alexei Pozanenko at IKI, Moscow
A. Volnova (IKI), N. Tungalag (Research Centre of Astronomy and
Geophysics MAS), S. Schmalz (AIP), V. Voropaev (KIAM), I.Molotov (KIAM),
A. Pozanenko (IKI) report on behalf of larger GRB follow-up collaboration:
We observed the field of the Swift Swift GRB 140211A (Cummings et al.,
GCN 15816) with ORI-40 telescope of Khureltogot observatory (Mongolia)
starting on Feb., 11 (UT) 12:29:12, i.e., ~6 minutes after the trigger.
We took several unfiltered images of 60 s exposure. Within the enhanced
BAT error circle (Cummings et al., GCN 15820) we do not detect any
optical counterpart in differently stacked images.
Details of the photometry are following:
UT start-end t-T0 Exp. Filter OT UL (3 sigma)
(mid, days) (s)
12:29:12-12:30:12 0.00450 1*60 None n/d 17.0
12:29:12-12:40:31 0.00819 10*60 None n/d 18.0
12:29:12-15:18:33 0.10468 100*60 None n/d 18.8
The photometry is based on reference stars SDSS-DR9, (R mag,
transformation by Lupton 2005):
N SDSS_id R(Lupton)
1 J081706.72+201335.6 18.171
2 J081655.77+201624.8 18.078
-
Переведу часть мэйл-переписки по поводу рассылки алертов гамма-всплесков сюда, на тот случай, если кому-нибудь из нас наблюдающих гамма-всплески пригодится информация.
В общем, для ускоренного получения алертов не по мэйлу/смс, а через сокет, установил я сегодня программу Боба Денни Dakota VOEvent Tools (http://voevent.dc3.com) под Win7 (в консольном режиме). Сконфигурировал, как описано в прилагающемся к программе описании. Не сразу нашёл нужный IP сервера GCN. Спросил по мэйлу Скотта Бартелми, получил такой ответ:
Sergi,
There are 3
There are 3 GCN/TAN servers currently running:
209.208.78.170 (on Atlantic.net cloud service) Ver 1.1
50.116.49.68 (on Linode.com cloud service) Ver 1.1
68.169.57.253 (on eApps.com cloud service) Ver 2.0
The first two are serving version 1.1 of the VOEvents,
and the eApps server is serving the newer 2.0 version of VOEvent.
(If you have a choice, I suggest you got wit the 2.0 stream
as sometime eventually the 1.1 streams will be eliminated.)
All 3 listen on port 8099 for incoming connections.
--scott
Программа Боба поддерживает только V1.1. Сейчас работает у меня, взял самый первый адрес сервера из списка Скотта, полёт нормальный, идут сообщения от GCN. Написал Бобу мэйл с вопросом, не планирует ли он выпустить версию поддерживающую V2.0, вот что он ответил:
Not at this time, and I am sorry. I walked away from trying to develop for VOEvents in 2012 after spending more than 1,500 hours over 6 years developing tools and programs that support and facilitate it, only to see it remain in "experimental/developmental" mode for 7 years with no end in sight. I am happy to have brought the things I have to public/open-source so that others may take it forward. I hope you understand.
-- Bob
Программа сохраняет лог, во вложении лог текущей работы проги.
-
Да. я спрашивал его год назад, по поводу развития нарпавления VOEvent. Он ответил что я единственный человек (теперь еще и Сергей) который его спрашивал по этому поводу. Тема мягко говоря не приоритетная для него и его заказчиков-покупателей. Так что программа может развиваться, но после того как будут решены приоритетные задачи, т.е. никогда.
Сервер 209. самый глюкавый, по моим наблюдениям. Часто срыв коннекта идет. Я пользуюсь 68.169.57.253, но там только v2.
-
2012 after spending more than 1,500 hours over 6 years developing
Чёт я поторопился ;D
-
В общем, для ускоренного получения алертов не по мэйлу/смс, а через сокет, установил я сегодня программу Боба Денни Dakota VOEvent Tools
Как правильно написано на сайте GCN, сокеты реально полезны для автоматов. Задержка между сокетами и письмом с алертом, по моим наблюдениям, 20-30 секунд (максимум). Т.е. при наведении на цель в 5-6 минут, это не существенно.
-
Уже четыре дня подряд приходят уведомления на одну и ту же область вблизи координат RA = 17h 44m / DEC -28d 44m. Причём от разных спутников: 17.02. от Swift, 18.02. тоже от него, 19.02. от INTEGRAL, и сегодня тоже от него. Та же область была замечена Интегралом 14.02, Свифтом 11.02. и 12.02.
Это какой-то регулярно повторяющийся глюк или в том направлении действительно есть какой-то источник сильного гамма-излучения? Просто, подозрительно как-то это.
Интеграл сегодня так вообще плющит, шлёт и шлёт сообщения на эту область...
-
Это регулярно повторяющийся рентгеновский пульсар GRO_J1744-28, он же "вспыхивающий".
http://www.astronet.ru/db/msg/1171263/gro.html
-
Интеграл сегодня так вообще плющит, шлёт и шлёт сообщения на эту область...
Их нужно отсеивать как идентифицированные с каталогом.
-
Колеги, надо навеститсь на ярчайший (в гамма) источник GRB 140219A
нужно поле зрения 2-2.5 градуса, значит смотреть надо на VT-78 или ОРИ-40 или аналогичных.
центр площадки
J2000 10 25 45.60 +07 27 36.0
напишите тому, кто может наблюдать
А.
-
GRB 140219A (~второй по яркости в гамма-диапазоне после GRB 130427A)
надо поочередно наблюдать три площадки, каждую по 30-40 минут
координаты центра площадок
(J2000)
O2 10 28 00.00 +08 30 00.0
O1 10 25 45.60 +07 27 36.0
O3 10 22 00.00 +06 00 00.0
А.
-
Новая локализация.
(http://fermigrb.stanford.edu/GRB140219A_tsmap.jpg)
Центр: RA, Dec 158.2, 7.2 (J2000), размер 2.75 х 1.65 deg
-
Не совсем понимаю - вон то белое пятно на 158.25/7.25 и есть наиболее вероятное предполагаемое место? Если так, то в отснятые мной О1, О2, О3 оно может и не влезть.
-
TITLE: GCN CIRCULAR
NUMBER: 15918
SUBJECT: GRB 140304A: Khureltogot optical observations
DATE: 14/03/04 15:17:16 GMT
FROM: Alexei Pozanenko at IKI, Moscow <apozanen@iki.rssi.ru>
A. Volnova (IKI), N. Tungalag (Research Centre of Astronomy and
Geophysics MAS), S. Schmalz (AIP), V. Voropaev (KIAM), I.Molotov (KIAM),
A. Pozanenko (IKI) report on behalf of larger GRB follow-up collaboration:
We observed the field of the he field of GRB 140304A (Evans et al., GCN
15915) with ORI-40 telescope of Khureltogot observatory starting on
Mar., 04 (UT)13:29:36, i.e., ~7 minutes after the GRB trigger. In the
first unfiltered images of 60 s exposure we clearly detected afterglow
of GRB 140304A reported by Gorbovskoy et al. (GCN 15914), Xu et al.
(GCN 15916), and Volnova et al., (GCN 15917). Preliminary photometry of
the fading afterglow is following:
date UT start t-T0 Exp. Filter OT
(mid, days) (s)
2014-03-04 13:29:36 0.00602 3*60 none 17.5 +/- 0.2
The photometry is based on reference stars SDSS-DR9, (R mag,
transformation by Lupton 2005):
N SDSS_id R(Lupton)err
J020233.12+332550.3 15.665 0.012
J020219.91+332738.5 14.785 0.012
-
Поздравляю! Интересный всплеск, еще и в Мондах сняли. Ну и поздравляю МАСТЕР с оперативными наблюдениями, они были первыми и первыми нашли источник.
-
Далекий всплеск z~5
-
Когда еще не было жизни во Вселенной! (http://www.pereplet.ru/lipunov/314.html#314)
Вчера, в 16.23 по московскому времени на одну из обсерваторий глобальной роботизированной сети МАСТЕР , расположенную на берегу Байкала (астрофизический полигон "Тунка" НИИЯФ МГУ), пришел сигнал с орбитальной гамма-обсерватории Свифт о регистрации гамма-всплеска GRB140304A.
...
А вот как выглядит хронология (в обратном порядке) событий на сайте Международного центра исследования Гамма-всплесков НАСА:
15928 GRB 140304A: RATIR g-band Dropout
15927 GRB 140304A: Swift-BAT refined analysis
15926 GRB 140304A: Swift-XRT refined Analysis
15925 GRB 140304A: Enhanced Swift-XRT position
15924 GRB 140304A: Redshift from the NOT
15923 GRB 140304A: Fermi GBM detection
15922 GRB 140304A: 10.4m GTC redshift z = 5.39
15921 GRB 140304A: NOT observations and redshift estimate
15920 GRB 140304A: Swift/UVOT Upper Limits
15919 iPTF14yb: JVLA and CARMA observations
15918 GRB 140304A: Khureltogot optical observations
15917 GRB 140304A: Mondy optical observations
15916 GRB 140304A: Afterglow decay from Nanshan observations
15915 GRB 140304A: Swift detection of a burst
15914 GRB 140304A: MASTER OT detecton
(http://www.pereplet.ru/lipunov/images/020234.07332826.1_1.jpg)
-
Если есть погода в Кисловодске, то вот
VOEvent monitor v0.1.5 recieved real alert from INTEGRAL (via VO-GCN) on 2014-03-06T20:16:57.
Trigger #6518
RA = 10:17:30.624 Dec = +68:27:58.68
Event localization is 0.06
-
Начал съёмку, жалко поздно тут заметил.
-
А я тебя добавлю в свою рассылку.
-
На самом деле, по VOEvent я его тоже получил, но не знал, что надо обращать внимание на Weak_Pos сообщения Интеграла. Мне бы вообще для разных инструментов, посылающих алерты, получше узнать не мешало бы, на какие сообщения реагировать. Для Свифта и Ферми уже вроде понятно, но там ещё девять других.
-
Я ориентируюсь на параметр GRB_Identification. Если он True, то это всплеск с известной локализацией и не отождествленный с бортовым каталогом.
-
Кроме трех источников, на моей памяти был только один всплеск, по моему от MAXI. Многие из источников алертов уже реально не работают.
-
Я ориентируюсь на параметр GRB_Identification.
Не могу найти его ни в XML файле алерта, ни тут (http://gcn.gsfc.nasa.gov/other/6518.integral).
-
Для Интеграла работаю так же с группой Test_mpos.
-
TITLE: GCN CIRCULAR
NUMBER: 16005
SUBJECT: GRB 140320B: ISON-NM optical observations
DATE: 14/03/20 11:15:24 GMT
FROM: Alexei Pozanenko at IKI, Moscow <apozanen@iki.rssi.ru>
L. Elenin (KIAM), A. Volnova (IKI), I. Molotov (KIAM), A. Pozanenko
(IKI) report on behalf of larger GRB follow-up collaboration:
We observed of the field of the INTEGRAL GRB 140320B (Mereghetti et
al., GCN 16004) with 0.4-m telescope of ISON-NM observatory starting
on Mar., 20 (UT) 09:35:41. We took unfiltered images of 30 s
exposures. We detect a fading optical afterglow of GRB 140320B
(Guidorzi et al., GCN 16003) in a stacked image of total exposure 300
s and do not detect it in the next stacked image of the same exposure.
Coordinates of the optical afterglow (J2000) 09 42 13.96 +60 16 05.9
(uncertainties of 1 arcsec) coincide with OT coordinates (Guidorzi et
al., GCN 16003). Preliminary photometry of first stacked images is
based on nearby USNO-B1.0 stars:
UT mid, T0+ Filter Exposure, OT, err OT
mid s
09:38:39 0.00878 none 10х30 19.1 0.2
09:44:40 0.03102 none 10х30 > 19.3 UpperlLimit
-
LeonidOS: сейчас у нас тут гамма-всплеск случился, наблюдаю
-
Источник нашел, Леша пишет циркуляр.
-
Ура!! :alc:
-
TITLE: GCN CIRCULAR
NUMBER: 16143
SUBJECT: GRB 140423: optical afterglow candidate
DATE: 14/04/23 09:32:14 GMT
FROM: Alexei Pozanenko at IKI, Moscow <apozanen@iki.rssi.ru>
L. Elenin (KIAM), A. Volnova (IKI), I. Molotov (KIAM), A. Pozanenko (IKI)
report on behalf of larger GRB follow-up collaboration:
We observed of the field of the Swift GRB 140423 (Sonbas et al., GCN
16142) with 0.4-m telescope of ISON-NM observatory starting
on Mar., 20 (UT) 09:01:03. The start of observation was delayed due to bad
weather. We took unfiltered images of 30 s exposures. We detect a fading
optical source in coordinates
(J2000) 13 09 08.50 +49 50 29.4
(with initial accuracy of about 1 arcsec). Preliminary photometry of the
source in the first images is ~ 17.2m. the photometry is based on nearby
USNO-B1.0 stars (R2 mag). Since the source is absent in USNO-B1.0 catalog
and clearly fading we suggest it as GRB 140423 afterglow candidate.
Успели первыми
-
Молодец, Лёнь - нью-мексиканский ковбой стреляет первым :)!
-
А то ;D
Исправили опечатку в первом циркуляре. Добавили точную фотометрию.
TITLE: GCN CIRCULAR
NUMBER: 16148
SUBJECT: GRB 140423A: ISON-MN early photometry and correction to the GCN circ. 16143
DATE: 14/04/23 11:01:48 GMT
FROM: Alexei Pozanenko at IKI, Moscow <apozanen@iki.rssi.ru>
L. Elenin (KIAM), A. Volnova (IKI), I. Molotov (KIAM), A. Pozanenko (IKI)
report on behalf of larger GRB follow-up collaboration:
After detection of the optical afterglow of GRB 140423A (Elenin et al., GCN
16143; Kaur et al., GCN 16144; Ferrante et al., GCN 16145) and X-ray
afterglow (Burrows et al., GCN 16146) we report initial photometry of our
first images taken with ISON-NM observatory:
UT start t-T0 Exp. Filter OT
(mid.,days) (s)
09:01:18 0.02043 30 Clear 17.11 +/- 0.17
09:06:49 0.02426 30 Clear 17.60 +/- 0.21
The photometry is based on star SDSS J130858.37+494547.9 (assuming R =
15.418 +/- 0.018).
The finding chart of GRB 140423A afterglow can be found in
http://grb.rssi.ru/GRB140423A/GRB140423A_ISON-NM_fc.png
Also we report the corect time of observation of the first image in GCN
16143. It should be April, 23, (UT) 09:01:03.
We apologize for the misprint.
-
Шашлыки, пиво и бац... телескоп пишет что пронаюлюдал всплеск :-) Не дает расслабиться :-)
-
Обработал, в оптике ничего нет, да и кружок ошибки лежит под двумя яркими звездами. Начал наблюдения через 52 секунды после получения алерта. Норматив выполнен ;D
-
TITLE: GCN CIRCULAR
NUMBER: 16221
SUBJECT: GRB 140502A: ISON-NM early optical limit
DATE: 14/05/07 20:16:19 GMT
FROM: Alexei Pozanenko at IKI, Moscow <apozanen@iki.rssi.ru>
L. Elenin (KIAM), A. Volnova (IKI), I. Molotov (KIAM), A. Pozanenko
(IKI) report on behalf of larger GRB follow-up collaboration:
We observed of the field of Swift GRB GRB 140502A with 0.4-m
telescope of ISON-NM observatory starting on May, 02 (UT) 08:31:32,
i.e. 72 s after BAT trigger (Swenson et al., GCN 16202). We took series
of unfiltered images of 30 s - 60 s exposures. A bright star (USNO-B1.0
1389-0392112) already mentioned (Oates et al., GCN 16210) lies within
enhanced XRT error circle (Goad et al., GCN 16206). We investigate
variability of a possible OT in presence in near vicinity of the
bright star. The upper limit of possible variation of the OT is 16.6m
within any of 60 s interval of our observations between (UT) 08:31:32
and 09:24:25 which can be considered as an upper limit on the OT
associated with GRB 140502A.
Formal photometry and limiting magnitude of point-like source in the
observed field is following
UT start t-T0 Exp. Filter OT UL(3 sigma)
(mid.,days) (s)
08:31:32 0.00383 10*30 None n/d 18.8
and based on nearby USNO-B1.0 stars, R2 magnitudes.
Т.е. 72 секунды после события и через 52 секунды после получения алерта.
-
Круто!!
-
Общая кривая блеска всплеска GRB 140423A, полученная нашей коллаборацией.
TITLE: GCN CIRCULAR
NUMBER: 16318
SUBJECT: GRB 140423A: TShAO optical observations
DATE: 14/05/22 16:23:31 GMT
FROM: Alexei Pozanenko at IKI, Moscow <apozanen@iki.rssi.ru>
A. Volnova (IKI), A.V. Kusakin (Fesenkov Astrophysical Institute) A.V.
Khruslov (INASAN), A. Pozanenko (IKI) report on behalf of larger GRB
follow-up collaboration:
We observed the optical afterglow (Elenin et al., GCN 16143; Kaur et
al., GCN 16144; Ferrante et al., GCN 16145; Chester et al., GCN 16147;
Maehara et al., GCN 16151) of the Swift GRB 140423A (Sonbas et al.,
GCN 16142) with Zeiss-1000 (East) 1m telescope of Tien Shan Astronomical
Observatory on Apr., 23 and Apr., 24. We took several images in R-filter
of 300 and 540 s exposures in three epochs.
Details of the photometry are following:
date UT start t-T0 Filter Exp. OT
(mid, days) (s)
2014-04-23 R 15:04:19 0.291036 R 8*300 20.47 0.14
2014-04-23 R 19:04:44 0.450758 R 6*300 20.70 0.20
2014-04-24 R 15:20:01 1.322830 R 12*540 22.17 0.10
The photometry is based on SDSS stars, R (gri -> R transformations by
Lupton 2005):
SDSS id R
J130914.51+494636.5 18.661+/-0.019
J130911.04+494854.6 20.209+/-0.053
J130924.79+494946.6 19.533+/-0.038
The light curve of the afterglow based on our previous an later
observations (GCNs 16143, 16148, 16168, 16247, 16264) can be found in
http://grb.rssi.ru/GRB140423A/grb140423a-lc.png
-
TITLE: GCN CIRCULAR
NUMBER: 16371
SUBJECT: GRB 140606A: AAO optical upper limit
DATE: 14/06/09 18:37:52 GMT
FROM: Alexei Pozanenko at IKI, Moscow
A. Volnova (IKI), R. Inasaridze (AAO), O. Kvaratskhelia (AAO), V.
Ayvazian (AAO), Yu. Krugly (IA KhNU), I. Molotov (KIAM), A. Pozanenko
(IKI) report on behalf of larger GRB follow-up collaboration:
We observed a field of the Swift GRB 140606A (Stroh et al., GCN 16353)
with AS-32 (0.7m) telescope of Abastumani Observatory starting on June,
06 (UT) 18:16:50. We obtained several unfiltered frames with exposure of
each frame of 120 s. Within the BAT ground-calculated position (Cummings
et al., GCN 16354) we do not detect evident variable source.
The details of the photometry are the following:
date UT start t-T0 Filter Exp. Uplim
(mid, days) (s) (3 sigma)
2014-06-06 18:16:50 0.33147 None 30*120 21.7
and based on SDSS star, R (gri -> R transformations by Lupton 2005):
J132717.88+373507.2
R_Lupton = 16.45 ± 0.013
-
TITLE: GCN CIRCULAR
NUMBER: 16372
SUBJECT: GRB 140521A: AAO optical upper limit
DATE: 14/06/09 19:46:36 GMT
FROM: Alexei Pozanenko at IKI, Moscow
A. Volnova (IKI), R. Inasaridze (AAO), O. Kvaratskhelia (AAO), V.
Ayvazian (AAO), Yu. Krugly (IA KhNU), I. Molotov (KIAM), A. Pozanenko
(IKI) report on behalf of larger GRB follow-up collaboration:
We observed second epoch of the field of the Swift GRB 140521A (Troja et
al., GCN 16311) with AS-32 (0.7m) telescope of Abastumani Observatory
starting on May, 22 (UT) 21:34:30. We obtained several unfiltered
frames with exposure of 120 s. In comparison with our first epoch
observation (Volnova et al., GCN 16317) we do not detect any variable
source within the BAT ground-calculated position (Barthelmy et al., GCN
16316).
A photometry is based on the same reference star used in first epoch
(see GCN 16311):
UT start t-T0 Filter Exp. Uplim
(mid, days) (s) (3 sigma)
2014-05-22 21:34:30 1.12809 None 38*120 21.5
-
TITLE: GCN CIRCULAR
NUMBER: 16398
SUBJECT: GRB 140606B / iPTF 14bfu: AAO optical observations
DATE: 14/06/14 14:21:20 GMT
FROM: Alexei Pozanenko at IKI, Moscow
A. Volnova (IKI), R. Inasaridze (AAO), O. Kvaratskhelia (AAO), V.
Ayvazian (AAO), Yu. Krugly (IA KhNU), I. Molotov (KIAM), A. Pozanenko
(IKI) report on behalf of larger GRB follow-up collaboration:
We observed a field of the GBM GRB 140606B / iPTF 14bfu (Singer et al.,
GCN 16360) with AS-32 (0.7m) telescope of Abastumani Observatory
starting on June, 07 (UT) 21:40:06. We obtained several unfiltered
frames with exposure of each frame of 120 s. The optical transient is
well detected on the stacked image.
A photometry is based on nearby USNO-B1.0 stars:
date UT start t-T0 Filter Exp. OT err
(mid, days) (s)
2014-06-07 21:40:06 1.82039 None 46*120 21.95 +/- 0.20
-
TITLE: GCN CIRCULAR
NUMBER: 16422
SUBJECT: GRB 140610A: TShAO optical upper limit
DATE: 14/06/20 09:37:19 GMT
FROM: Alexei Pozanenko at IKI, Moscow
A. Volnova (IKI), W. Mundrzyjewski (Fesenkov Astrophysical Institute),
A. Kusakin (Fesenkov Astrophysical Institute), A. Pozanenko (IKI) report
on behalf of larger GRB follow-up collaboration:
We observed the field of the Swift GRB 140610A (Evans et al., GCN
16375) with Zeiss-1000 (East) telescope of Tien Shan Astronomical
Observatory starting on June 10, (UT) 16:49:37, i.e. 18 minutes after
GRB trigger. We took several images in R-filter. Within enhanced XRT
position (Evans et al., GCN 16388) we do not find any new source neither
in the first image nor in a stacked image.
Details of the photometry are following:
date UT start t-T0 Filter Exp. UL(3 sigma)
(mid, days) (s)
2014-06-10 16:49:37 0.04487 R 56*60 19.9
The photometry is based on USNO-B1.0 star
USNO-B1.0 RA Dec R2
0939-0410021 19:05:04.48 +03:54:23.3 16.75
-
TITLE: GCN CIRCULAR
NUMBER: 16453
SUBJECT: GRB 140620A / iPTF14cva: TShAO optical observations
DATE: 14/06/24 23:39:18 GMT
FROM: Alexei Pozanenko at IKI, Moscow
A. Volnova (IKI), W. Mundrzyjewski (Fesenkov Astrophysical Institute), A.
Kusakin (Fesenkov Astrophysical Institute), A. Pozanenko (IKI) report on
behalf of larger GRB follow-up collaboration:
We observed the optical candiadate iPTF14cva (Kasliwal et al., GCN 16425) of
Fermi GRB 140620A (Fermi trig. # 424934131) (Fitzpatrick et al., GCN
16426) with Zeiss-1000 (East) 1m telescope of Tien Shan Astronomical
Observatory on June, 20 starting (UT) 21:22:56. We took several images in
R-filter. We clearly detected optical transient (Siegel et al., GCN 16432;
Kelemen GCN 16440) in a stacked image.
Details of the photometry are following:
date UT start t-T0 Filter Exp. OT
(mid, days) (s)
2014-06-20 21:22:56 0.68914 R 20*120 20.37 +/- 0.09
The photometry is based on star USNO-B1.0 1397-0294956 (RA 18:47:28.76 Dec
+49:43:44.5) assuming R=16.35.
-
TITLE: GCN CIRCULAR
NUMBER: 16536
SUBJECT: GRB 140703A: AAO optical observations
DATE: 14/07/07 15:24:58 GMT
FROM: Alexei Pozanenko at IKI, Moscow
A. Volnova (IKI), R. Inasaridze (AAO), O. Kvaratskhelia (AAO), V.
Ayvazian (AAO), Yu. Krugly (IA KhNU), I. Molotov (KIAM), A. Pozanenko
(IKI) report on behalf of larger GRB follow-up collaboration:
We observed the Swift GRB 140703A (Kocevski et al., GCN 16503) with
AS-32 (0.7m) telescope of Abastumani Observatory starting on July, 07
(UT) 23:27:06. We obtained several unfiltered frames under exellent
weather with exposure of each frame of 120 s. The optical afterglow
(Cunniffe et al. GCN16504) is well detected on the stacked image.
Details of a photometry of the pi-redsifted GRB 140703A (Castro-Tirado
et al., GCN 16505) are following:
date UT start t-T0 Filter Exp. OT err
(mid, days) (s)
2014-07-03 23:27:06 0.97235 None 23*120 21.27 +/- 0.08
The photometry is based on following SDSS stars and gri -> R
transformation (Lupton, 2005)
SDSS id R_Lupton
J005158.97+450627.1 17.374 ± 0.011
J005153.14+450619.0 16.257 ± 0.011
J005202.70+450621.8 18.216 ± 0.014
-
TITLE: GCN CIRCULAR
NUMBER: 16558
SUBJECT: GRB 140709B: Khureltogot optical upper limit
DATE: 14/07/09 22:59:55 GMT
FROM: Alexei Pozanenko at IKI, Moscow
A. Volnova (IKI), S. Schmalz (AIP), N. Tungalag (Research Centre of
Astronomy and Geophysics MAS), I.Molotov (KIAM), A. Pozanenko (IKI)
report on behalf of larger GRB follow-up collaboration:
We observed the field of GRB 140709B (Swenson et al., GCN 16551) with ORI-40
telescope of Khureltogot observatory starting on
Jul., 09 (UT) 15:31:51. In the first unfiltered images of 60 s exposure we
do not detect any object in the enhanced XRT error circle (Goad et al., GCN
16556) down to 17.7m in each separate image. The photometry is based on
nearby USNO-B1.0 stars.
-
TITLE: GCN CIRCULAR
NUMBER: 16571
SUBJECT: GRB 140709B: update of Khureltogot optical upper limit
DATE: 14/07/10 16:35:49 GMT
FROM: Alexei Pozanenko at IKI, Moscow
A. Volnova (IKI), S. Schmalz (AIP), N. Tungalag (Research Center of
Astronomy and Geophysics MAS), I.Molotov (KIAM), A. Pozanenko (IKI)
report on behalf of larger GRB follow-up collaboration:
After receiving a full data set we report details of the observation of
the field of GRB 140709B (Swenson et al., GCN 16551) with ORI-40
telescope of Khureltogot observatory. We started observation on July 09
(UT) 15:31:51 and obtained 60 unfiltered images of 60 s exposure.
Within enhanced XRT error circle (Goad et al., GCN 16556) we do not
detect any new object neither in separate, nor in stacked images.
Details of a photometry is following
UT start t-T0,d Exp,s Filter Up_lim (3 sigma)
15:31:51 0.01334 5*60 None 18.9
15:31:51 0.01940 20*60 None 19.5
The photometry is based on SDSS star J094401.61+633253.8 assuming
R=16.010+/-0.013 (using gri -> R Lupton transformations).
-
Яркая вспышка от Ферми...
TITLE: GCN CIRCULAR
NUMBER: 16653
SUBJECT: GRB 140801A (FERMI trigger 428612396): MASTER brigth OT discovery
DATE: 14/08/01 20:52:09 GMT
FROM: Vladimir Lipunov at Moscow State U/Krylov Obs <gcncirc@observ.inetcomm.ru>
E. Gorbovskoy, V. Lipunov, D.Denisenko, M.Pruzhinskaya, V.Kornilov,
D.Kuvshinov, A.Belinski, N.Tyurina, N.Shatskiy, P.Balanutsa, D.Zimnukhov,
A.Kuznetsov, V.V.Chazov, A.Sankovich
Lomonosov Moscow State University,
Sternberg Astronomical Institute, Moscow State University
K.Ivanov, S.Yazev, N.M.Budnev, O.Gres, O.Chuvalaev, V.A.Poleshchuk
Irkutsk State University
V.Yurkov, Yu.Sergienko, D.Varda, E.Sinyakov
Blagoveschensk Educational State University, Blagoveschensk
A. Tlatov, A.V. Parhomenko, D. Dormidontov, V.Sennik
Kislovodsk Solar Station of the Pulkovo Observatory
V.Krushinsky, I.Zalozhnih, A. Popov
Ural Federal University, Yekaterinburg, Kourovka
Hugo Levato and Carlos Saffe
Instituto de Ciencias Astronomicas, de la Tierra y del Espacio (ICATE)
Claudio Mallamaci, Carlos Lopez and Federico Podest
Observatorio Astronomico Felix Aguilar (OAFA)
MASTER II robotic telescope (MASTER-Net: http://observ.pereplet.ru)
located in Tunka was pointed to the GRB140801A (FERMI trig. 428612396) 54
sec after notice time and 100 sec after trigger time at 2014-08-01 19:01:33 UT
in two polarizations.
MASTER-Tunka auto-detection system discovered bright OT
source at (RA, Dec) = 02h 56m 16.44s +30d 56m 16.8s on 2014-08-01.79376
UT. The OT unfiltered magnitude is 14.6m (limit 18.3m) within FERMI
error-box (trig. N 428612396).
Preliminary automatic photometry and astrometry
Date Time Ra Dec Mag
2014-08-01 19:01:31.886 02h 56m 16.42s , +30d 56m 16s.8 14.64
2014-08-01 19:03:02.863 02h 56m 16.43s , +30d 56m 17s.0 15.72
2014-08-01 19:04:38.384 02h 56m 16.43s , +30d 56m 17s.0 16.30
Our band is well described by a parity 0.8R+0.2B (USNO B1).
The discovery and reference images are available at:
http://master.sai.msu.ru/static/GRB/GRB140801_FERMI.png
The 5-sigma upper limit has been about 18.53mag
The message may be cited.
-
TITLE: GCN CIRCULAR
NUMBER: 16651
SUBJECT: GRB 140709B: TShAO optical upper limit
DATE: 14/08/01 17:36:06 GMT
FROM: Alexei Pozanenko at IKI, Moscow
A. Volnova (IKI), W. Mundrzyjewski (Fesenkov Astrophysical Institute),
A. Kusakin (Fesenkov Astrophysical Institute), A. Pozanenko (IKI) report
on behalf of larger GRB follow-up collaboration:
We observed the field of the Swift GRB 140709B (Swenson et al., GCN
16551) with Zeiss-1000 (West) telescope of Tien Shan Astronomical
Observatory starting on July 9, (UT) 15:50:27, i.e. 35 minutes after GRB
trigger. We took several images in R-filter. Within enhanced XRT error
circle (Goad et al., GCN 16556) we do not detect any new object in
stacked images.
Details of a photometry of stacked images are following
Date UT start t-T0,d Exp,s Filter Up_Lim (3 sigma)
2014-07-09 15:50:27 0.09193 13*600 R 20.5
2014-07-10 15:36:01 1.06090 13*600 R 19.8
The photometry is based on SDSS star J094401.61+633253.8 assuming
R=16.010+/-0.013 (using gri -> R Lupton transformations).
-
TITLE: GCN CIRCULAR
NUMBER: 16667
SUBJECT: GRB 140801A: AAO optical observations
DATE: 14/08/04 01:38:25 GMT
FROM: Alexei Pozanenko at IKI, Moscow
A. Volnova (IKI), R. Inasaridze (AAO), Molotov (KIAM), A. Pozanenko (IKI)
report on behalf of larger GRB follow-up collaboration:
We observed the field of GRB 140801A (Pelassa, GCN 16658) with AS-32 (0.7m)
telescope of Abastumani Observatory starting on Aug. 02 (UT) 21:54:52. We
obtained several unfiltered frames under of 60 s under average FWHM of 2.0
arcsec. The optical afterglow (Gorbovskoy et al., GCN 16653; Xu et al., GCN
16656, Masi, GCN 16659) is well detected on the stacked image.
Details of a photometry of the GRB 140801A are following:
date UT start t-T0 Filter Exp. OT err
(mid, days) (s)
2014-08-02 21:54:52 1.14962 None 26*60 22.13 0.18
The photometry is based on the USNO-B1 star ((J2000) 02:56:16.58 +30:57:02.1
assuming R = 16.06) suggested by Moskvitin et al., (GCN 16663). Our
photometry does not contradict un-broken decay of a light curve of GRB
140801A (Kann et al., GCN 16666).
-
TITLE: GCN CIRCULAR
NUMBER: 16729
SUBJECT: GRB 140817A: Khureltogot optical upper limit
DATE: 14/08/20 17:29:16 GMT
FROM: Alexei Pozanenko at IKI, Moscow
A. Pozanenko (IKI), N. Tungalag (Research Center of Astronomy and
Geophysics MAS), S. Schmalz (AIP), A. Volnova (IKI), I.Molotov (KIAM)
report on behalf of larger GRB follow-up collaboration:
We observed the field of GRB 140817A (Sbarufatti et al., GCN 16695)
with ORI-40 telescope of Khureltogot observatory. We started
observation on Aug. 17 (UT) 14:20:48 and obtained 60 unfiltered images
of 60 s exposure. Within enhanced XRT error circle (Osborne et al., GCN
16697) we do not detect any new object and in particular the afterglow
candidate (Marshall et al., GCN 16710). Details of a photometry of the
stacked image is following
Date UT start t-T0 Filter Exp. UL(3 sigma)
(mid, days) (s)
2014-08-17 14:20:48 0.3269 None 60*60 18.2
The photometry is based on USNO-B1.0 star 1481-0233222 assuming
R=15.43.
-
TITLE: GCN CIRCULAR
NUMBER: 16747
SUBJECT: GRB 140824A: optical upper limit in CrAO
DATE: 14/08/26 18:11:29 GMT
FROM: Alexei Pozanenko at IKI, Moscow
V. Rumyantsev (CrAO), A. Pozanenko (IKI) report on behalf of larger GRB
follow-up collaboration:
We observed the field of the Swift GRB 140824A (Beardmore et al., GCN
16732) with ZTSh telescope of CrAO observatory starting on Aug. 24 (UT)
17:48:55 (9.1 hours after burst trigger). We took several images in
R-filter of 120 s exposure. Within enhanced XRT position (Evans et al.,
GCN 16735) we do not detect any source. Photometry of a combined image
is following
Date UT start, t-t0 Filter Exp. OT UL (3 sigma)
(mid, days) (s)
2014-08-24 17:48:55 0.4105 R 39x120 n/d 23.5
The photometry is based on USNO-B1.0 star
1233-0239576 (13:46:31.55 +33:18:14.7) assuming R=19.66
-
TITLE: GCN CIRCULAR
NUMBER: 16779
SUBJECT: GRB 140903A: ISON-Kislovodsk observations
DATE: 14/09/05 04:11:18 GMT
FROM: Alexei Pozanenko at IKI
A. Pozanenko (IKI), A. Volnova (IKI), N. Polyakov (ISON), E. Romas (ISON), I. Molotov (KIAM), report on behalf of larger collaboration:
We observed the field of GRB 140903A (Cummings et al., GCN 16763) with Santel-400AN telescope of ISON-Kislovodsk observatory starting on Sep. 03 (UT) 18:54:36. In the enhanced XRT position (De Pasquale et al., GCN 16767) we do not detect the object (Capone et al., GCN 16769; Cenko et al., GCN 16770; Fruchter, GCN 16776). A preliminary upper limit after subtraction of the nearby bright star is 16m. A formal upper limit of a point-like source in the image away of the bright nearby star is following
Date UT start t-T0 Filter Exp. UL(3 sigma)
(mid, days) (s)
2014-09-03 18:22:05 0.14057 None 100 18.6
The photometry is based on SDSS stars
SDSS J155213.13+273321.7 R_Lupton 15.392 ± 0.013
SDSS J155218.31+273433.5 R_Lupton 14.792 ± 0.013
SDSS J155155,39+273948,9 R_Lupton 15.421 ± 0.013
-
TITLE: GCN CIRCULAR
NUMBER: 16780
SUBJECT: GRB 140818B: TShAO optical upper limit
DATE: 14/09/05 06:16:20 GMT
FROM: Alexei Pozanenko at IKI
A. Pozanenko (IKI), I. Rewa, W. Mundrzyjewski, A. Kusakin (Fesenkov Astrophysical Institute), A. Volnova (IKI), report on behalf of larger GRB follow-up collaboration:
We observed the field of the Swift GRB 140818B (Vargas et al., GCN 16709)with Zeiss-1000 (East) telescope of Tien Shan Astronomical Observatory starting on Aug. 19, (UT) 17:05. We took several images in R-filter. Within enhanced XRT error circle (Beardmore et al., GCN 16712) we do not detect the afterlow (Aceituno et al., GCN 16711; Knust et al., GCN 16713). The source mentioned by Knust et al. (GCN 16713) is clearly visible in a stacked image in coordinates (J2000) 18:04:32.76 -01:23:08.9 (uncertainty is 0.2 arcsec in both coordinates) and has brightness of R=22.1+/-0.1.
Details of a photometry of the stacked image are following
Date UT start t-T0,d Exp,s Filter Up_Lim (3 sigma)
(mid)
2014-08-19 16:11:12 0.9317 20*600 R 22.9
The photometry is based on nearby USNO-B1.0 stars, R2 magnitudes.
-
GRB 140907A
(J2000)
48.1418d {+03h 12m 34.03s}
+46.6049d {+46d 36' 17.6"}
яркий, сейча уже 18m
-
TITLE: GCN CIRCULAR
NUMBER: 16809
SUBJECT: GRB 140907A: TShAO observations
DATE: 14/09/09 20:54:38 GMT
FROM: Alexei Pozanenko at IKI, Moscow
A. Volnova (IKI), A. Pozanenko (IKI), W. Mundrzyjewski (Fesenkov
Astrophysical Institute), V. Tereshenko (Fesenkov Astrophysical
Institute) report on behalf of larger GRB follow-up collaboration:
We observed the field of the Swift GRB 140907A (Krimm et al., GCN
16788)with Zeiss-1000 (East) telescope of Tien Shan Astronomical
Observatory starting on Sep. 07, (UT) 17:05. We took several images in
R-filter. Within enhanced XRT error circle (Goadet al., GCN 16795) we
clearly detect the afterglow(Xu et al., GCN 16789; Kuin and Krimm, GCN
16791).
Preliminary photometry of first and last exposures is following
Date UT start t-T0,d Exp,s Filter OT OT_err
(mid)
2014-09-07 17:33:41 0.06357 600 R 18.94 0.08
2014-09-07 23:22:46 0.30598 600 R 20.22 0.07
The photometry is based on nearby USNO-B1.0 stars, R2 magnitudes.
Preliminary light curve of the afterglow of GRB 140907A obtained between
(UT) 17:33:41 and 23:22:46 can be found in
http://grb.rssi.ru/GRB140907A/GRB14907A_lc.png .
Within the time interval ( 17:33:41 - 23:22:46 ) the LC might be
approximated by power law with a power law index ~-2 which could suggest
the jet-brake within this interval.
-
Ссылка на первые оптические наблюдения GRB 130427A, полученные ISON-NM, в статье "Discovery of the broad-lined Type Ic SN 2013cq associated with
the very energetic GRB 130427A", ApJ 776 (2013) 98.
http://arxiv.org/abs/1305.6832v2
-
A. Pozanenko (IKI), I. Rewa, W. Mundrzyjewski, A. Kusakin (Fesenkov Astrophysical Institute), A. Volnova (IKI), report on behalf of larger GRB follow-up collaboration:
Ого... Только моя фамилия через V пишется... ::) Reva
-
TITLE: GCN CIRCULAR
NUMBER: 16911
SUBJECT: GRB 141015A: ISON-NM early optical observations
DATE: 14/10/15 17:27:15 GMT
FROM: Alexei Pozanenko at IKI, Moscow
L. Elenin (KIAM), E. Mazaeva (IKI), A. Volnova (IKI), I. Molotov
(KIAM), A. Pozanenko (IKI) report on behalf of larger GRB follow-up
collaboration:
We observed the field of the Swift GRB 141015A (Troja et al., GCN
16909) with 0.4-m telescope of ISON-NM observatory starting on Oct., 15
(UT) 09:16:55, i.e. ~4 minutes after burst triger. We obtained 14
unfiltered images of 120 s exposure. We do not detect any source within
XRT error circle (Troja et al., GCN 16910):
UT start t-T0 Exp. Filter UL (3sigma)
(mid.,days) (s)
09:16:55 0.0068 5*120 Clear 18.4
09:16:55 0.0131 14*120 Clear 19.0
The photometry is based on nearby USNO-B1.0 stars
USNO-B1.0 RA DEC R2
1083-0107546 087,552978 +18,360067 14,78
1083-0107529 087,547650 +18,355839 15,18
1083-0107484 087,534895 +18,341425 15,00
1083-0107360 087,503081 +18,336089 14,71
-
TITLE: GCN CIRCULAR
NUMBER: 16947
SUBJECT: GRB 141020A: Khureltogot optical upper limit
DATE: 14/10/25 00:46:27 GMT
FROM: Alexei Pozanenko at IKI
E. Mazaeva (IKI), S. Schmalz (AIP), N. Tungalag (Research Center of Astronomy and Geophysics MAS), A. Volnova (IKI), I.Molotov (KIAM), A. Pozanenko (IKI) report on behalf of larger GRB follow-up collaboration:
We observed the field of the Swift GRB 141020A (Cenko et al., GCN 16928) with ORI-40 telescope of Khureltogot observatory. We obtained several unfiltered images on Oct. 20 starting on (UT) 12:09:56. At the position reported in (Kuin et al., GCN 16932) we do not detect the afterglow of GRB 141020A (Cenko et al., GCN 16928; Kuin et al., GCN 16932; Mazaeva et al., GCN 16943). Preliminary photometry is following:
date UT start t-T0 Filter Exp. OT UL(3sigma)
(mid, days) (s)
2014-10-20 12:09:56 0.2037 clear 60*60 n/d 19.8
The photometry is based on SDSS stars reported in GCN 16943.
-
TITLE: GCN CIRCULAR
NUMBER: 16948
SUBJECT: GRB 141020A: AAO optical upper limit
DATE: 14/10/25 00:48:28 GMT
FROM: Alexei Pozanenko at IKI
E. Mazaeva (IKI), R. Inasaridze (AAO), A. Volnova (IKI), Molotov (KIAM), A. Pozanenko (IKI) report on behalf of larger GRB follow-up collaboration:
We observed the field of the Swift GRB 141020A (Cenko et al., GCN 16928) with AS-32 (0.7m) telescope of Abastumani Observatory. We obtained several unfiltered images on Oct. 20 starting on (UT) 15:41:01. At the position reported in (Kuin et al., GCN 16932) we do not detect the afterglow of GRB 141020A (Cenko et al., GCN 16928; Kuin et al., GCN 16932; Mazaeva et al., GCN 16943). Preliminary photometry is following:
date UT start t-T0 Filter Exp. OT UL(3sigma)
(mid, days) (s)
2014-10-20 15:41:01 0.3630 clear 38*120 n/d 21.4
The photometry is based on SDSS stars reported in GCN 16943.
-
TITLE: GCN CIRCULAR
NUMBER: 17033
SUBJECT: GRB 141026A: CrAO optical observation
DATE: 14/11/06 18:49:43 GMT
FROM: Alexei Pozanenko at IKI, Moscow
V. Rumyantsev (CrAO), E. Mazaeva (IKI), A. Volnova (IKI), A. Pozanenko
(IKI) report on behalf of larger GRB follow-up collaboration:
The GCN #17032 should be read as following:
(We are sorry for inconvenience)
We observed the field of the Swift GRB GRB 141026A (Hagen et al., GCN
16950) with ZTSh telescope of CrAO observatory starting on Oct. 26 (UT)
18:25:48. We took several images in R-filter of 120 s exposure under
poor weather conditions and mean seeing of 5". The optical afterglow
(Littlejohns et al. GCN 16592; Varela et al. GCN 16953; Gorosabel et al.
GCN 16954) is clearly visible in our stacked image. Photometry of a
combined image is following
Date UT start, t-t0 Filter Exp. OT OT_err
(mid, days) (s)
2014-10-26 18:25:48 0.7020 R 53*120 21.88 0.18
The photometry is based on USNO-B1.0 stars
RA DEC R
044,065509 +26,958050 18.71
044,051792 +26,894737 18.59
044,049131 +26,929059 17.48
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TITLE: GCN CIRCULAR
NUMBER: 17030
SUBJECT: GRB 141028A: TShAO optical observation
DATE: 14/11/05 20:23:23 GMT
FROM: Alexei Pozanenko at IKI, Moscow
E. Mazaeva (IKI), A. Volnova (IKI), A. Khruslov (INASAN), A. Kusakin
(Fesenkov Astrophysical Institute), A. Pozanenko (IKI) report on behalf
of larger GRB follow-up collaboration:
We observed the field of GRB 141028A (Bissaldi et al., GCN 16969)
with Zeiss-1000 (East) 1-m telescope of Tien Shan Astronomical
Observatory on Oct., 29 starting on (UT) 15:58:47. We obtained several
images in R-filter. In a combined image we clearly detect optical
afterglow (Gorbovskoy et al., GCN 16972; Graham et al., GCN 16977).
Details of the photometry are following:
date UT start t-T0 Filter Exp. OT OT_err
(mid, days) (s)
2014-10-29 15:58:47 1.2300 R 10*300 20.5 0.10
The photometry is based on following SDSS DR9 stars:
SDSS_id R_Lupton
J213021,99-001255,7 15.503
J213030,76-001427,8 17.205
J213035,56-001205,6 16.620
-
TITLE: GCN CIRCULAR
NUMBER: 17029
SUBJECT: GRB 141031B: TShAO optical observations
DATE: 14/11/05 19:27:48 GMT
FROM: Alexei Pozanenko at IKI, Moscow
E. Mazaeva (IKI), A. Volnova (IKI), A. Khruslov (INASAN), A. Kusakin
(Fesenkov Astrophysical Institute), A. Pozanenko (IKI) report on behalf
of larger GRB follow-up collaboration:
We observed the field of the GRB 141031B (Gompertz et al., GCN 16998)
with Zeiss-1000 (East) 1m telescope of Tien Shan Astronomical
Observatory on Oct., 31 starting on (UT) 15:39:02. Within enhanced XRT
error circle (Goad et al., GCN 17009) we do not detect any object
either in a single image (Mazaeva et al., GCN 17007) or in combined
image of a total exposure of 4800 s.
Details of the photometry are following:
date UT start t-T0 Filter Exp. UL (3 sigma)
(mid, days) (s)
2014-10-31 15:39:02 0.03284 R 600 21.5
2014-10-31 15:39:02 0.05837 R 8*600 22.3
The photometry is based on following SDSS DR9 stars:
SDSS_id R_Lupton err
J234748,81+411954,3 16.430 0.014
J234749,26+412154,3 16.866 0.014
J234741,02+411920,5 17.452 0.015
-
TITLE: GCN CIRCULAR
NUMBER: 17062
SUBJECT: GRB 141109A: AAO optical observations
DATE: 14/11/12 19:34:55 GMT
FROM: Alexei Pozanenko at IKI, Moscow
E. Mazaeva (IKI), R. Inasaridze (AAO), A. Volnova (IKI), Molotov (KIAM),
A. Pozanenko (IKI) report on behalf of larger GRB follow-up collaboration:
We observed the field of the Swift GRB 141109A (D'Avanzo et al., GCN
17037) with AS-32 (0.7m) telescope of Abastumani Observatory.
Observations were performed under mean seeing (FWHM) of 2.4". We
obtained several unfiltered images on Nov. 10 starting on (UT) 01:05:04.
At the position reported in (Covino, GCN 16932) we marginally
detected (S/N =2) the afterglow of GRB 141109A (Covino, GCN 16932; Xu
et al., GCN 17040; Graham et al., GCN 17041). Preliminary photometry is
following:
date UT start t-T0 Filter Exp. OT OT_err
(mid, days) (s)
2014-11-10 01:05:04 0.836 clear 37*120 21.7 0.4
The photometry is based on several SDSS-DR9 stars R magnitudes
transformed from SDSS-DR9 based on Lupton transformations:
SDSS-DR9 R
J093801.18-003731.5 17.6330
J093759.83-003741.8 17.2029
J093815.45-003332.9 18.2004
-
TITLE: GCN CIRCULAR
NUMBER: 17067
SUBJECT: GRB 141109B: optical upper limits
DATE: 14/11/13 00:53:15 GMT
FROM: Alexei Pozanenko at IKI, Moscow
E. Mazaeva (IKI), A. Stepura (UAFO, ISON), R. Inasaridze (AAO), B.
Abdulloev (Institute of Astrophysics), A. Matkin (UAFO, ISON), N.
Minikulov (Institute of Astrophysics), A. Volnova (IKI), Molotov (KIAM), A.
Pozanenko (IKI) report on behalf of larger GRB follow-up collaboration:
We observed the field of the Swift GRB 141109B (Melandri et al., GCN
17038) with following instruments: SANTEL-650 (0.65m) telescope of
UAFO/ISON-Ussuriysk Observatory, AZT-8 (0.7m) telescope of Gissar
observatory, and AS-32 (0.7m) telescope of Abastumani Observatory (AAO). In
the enhanced XRT error circle (Beardmore et al., GCN 17045) we do not
detect any source with upper limits listed below:
Date UT start t-T0 Filter Exp. UL(3sigma)
Observatory
(mid, days) (s)
2014-11-09 09:18:51 0.10220 clear 100*60 20.7 UAFO
2014-11-09 14:30:43 0.29425 R 40*60 19.9 Gissar
2014-11-09 15:26:30 0.38464 clear 71*120 22.0 AAO
The photometry is based on stars of USNO-B1.0 and assumed R magnitudes:
RA DEC R
222.429145 +73.085200 14.97
222.517839 +73.110348 15.54
222.193512 +73.123517 17.06
222.275356 +73.104562 17.46
222.463681 +73.158509 17.55
-
TITLE: GCN CIRCULAR
NUMBER: 17089
SUBJECT: GRB 141121A: AAO optical observations
DATE: 14/11/23 13:36:48 GMT
FROM: Alexei Pozanenko at IKI, Moscow
E. Mazaeva (IKI), R. Inasaridze (AAO), A. Volnova (IKI), Molotov (KIAM),
A. Pozanenko (IKI) report on behalf of larger GRB follow-up collaboration:
We observed the field of GRB 141121A (Lien et al., GCN 17075) with AS-32
(0.7m) telescope of Abastumani Observatory. Observations were performed
under mean seeing (FWHM) of 3.5". We obtained several unfiltered images
on Nov. 21 starting on (UT) 20:01:35. Within enhanced XRT position
(Evans et al., GCN 17080) we clearly detected afterglow of GRB 141109A
(Tanga et al., GCN 17078; Perley et al., GCN 17081). Preliminary
photometry is following:
date UT start t-T0 Filter Exp. OT OT_err
(mid, days) (s)
2014-11-21 20:01:35 0.73241 clear 54*120 20.08 0.05
The photometry is based on several SDSS-DR9 stars R magnitudes
transformed from SDSS-DR9 based on Lupton transformations:
SDSS_id R(Lupton)
J081028,70+221318,9 16,317
J081049,68+221012,2 17,148
J081048,76+220822,7 14,413
J081106,66+221346,9 14,626
-
TITLE: GCN CIRCULAR
NUMBER: 17103
SUBJECT: GRB 141121A: TSHAO optical observations
DATE: 14/11/27 00:21:38 GMT
FROM: Alexei Pozanenko at IKI, Moscow
A. Volnova (IKI), I. Reva (Fesenkov Astrophysical Institute), A. Kusakin
(Fesenkov Astrophysical Institute), E. Mazaeva (IKI), A. Pozanenko (IKI)
report on behalf of larger GRB follow-up collaboration:
We observed the field of GRB 141121A (Lien et al., GCN 17075)
with Zeiss-1000 (East) 1-m telescope of Tien Shan Astronomical
Observatory starting on Nov. 22 (UT) 21:45:26. We obtained several
images in R-filter. In a combined image we clearly detect optical
afterglow (Tanga et al., GCN 17078; Perley et al., GCN 17081).
A preliminary photometry is based on nearby SDSS DR9 stars:
date UT start t-T0 Filter Exp. OT OT_err
(mid, days) (s)
2014-11-22 21:45:26 1.8093 R 26*300 20.88 0.03
-
TITLE: GCN CIRCULAR
NUMBER: 17113
SUBJECT: GRB 141121A: Khureltogot optical observations
DATE: 14/11/28 22:40:39 GMT
FROM: Alexei Pozanenko at IKI, Moscow
E. Mazaeva (IKI), S. Schmalz (AIP), N. Tungalag (Research Center of
Astronomy and Geophysics MAS), A. Volnova (IKI), I.Molotov (KIAM), A.
Pozanenko (IKI) report on behalf of larger GRB follow-up collaboration:
We observed the field of We observed the field of GRB 141121A (Lien et
al., GCN 17075) with ORI-40 telescope of Khureltogot observatory. We
obtained several images in R-filter on Nov. 21 starting on (UT)
17:07:01. In a combined image we marginally detect optical afterglow
(Tanga et al., GCN 17078; Perley et al., GCN 17081). Preliminary
photometry is following and based on nearby SDSS DR9 stars:
date UT start t-T0 Filter Exp. OT OT_err
(mid, days) (s)
2014-11-21 17:07:01 0.5977 R 120*60 19.0 0.3
-
TITLE: GCN CIRCULAR
NUMBER: 17117
SUBJECT: GRB 141121A: TSHAO optical observations
DATE: 14/11/29 18:03:22 GMT
FROM: Alexei Pozanenko at IKI, Moscow
E. Mazaeva (IKI), A. Kusakin (Fesenkov Astrophysical Institute), A.
Volnova (IKI), I. Reva (Fesenkov Astrophysical Institute), A. Pozanenko
(IKI) report on behalf of larger GRB follow-up collaboration:
We observed the field of GRB 141121A (Lien et al., GCN 17075)
with Zeiss-1000 (East) 1-m telescope of Tien Shan Astronomical
Observatory starting on Nov. 26 (UT) 22:12:24. We obtained several
images in R-filter. In a combined image we clearly detect optical
afterglow (Tanga et al., GCN 17078; Perley et al., GCN 17081).
A preliminary photometry is based on nearby SDSS DR9 stars:
date UT start t-T0 Filter Exp. OT OT_err
(mid, days) (s)
2014-11-26 22:12:24 5.8118 R 14*300 21.48 0.09
-
TITLE: GCN CIRCULAR
NUMBER: 17168
SUBJECT: GRB 141212A: Khureltogot optical upper limit
DATE: 14/12/12 20:09:31 GMT
FROM: Alexei Pozanenko at IKI, Moscow
E. Mazaeva (IKI), S. Schmalz (AIP), N. Tungalag (Research Center of
Astronomy and Geophysics MAS), A. Volnova (IKI), I.Molotov (KIAM), A.
Pozanenko (IKI) report on behalf of larger GRB follow-up collaboration:
We observed the field of GRB 141212A (Ukwatta et al., GCN 17158) with
ORI-40 telescope of Khureltogot observatory. We obtained 2 hours of
unfiltered images on Dec. 12 starting on (UT) 12:46:14. In a combined
image of the first 5 frames we do not detect any optical source within
enhanced Swift-XRT position (Osborne et al., GCN 17164). Preliminary
photometry is following
Date UT start t-T0 Filter Exp. ULimit (3sigma)
(mid, days) (s)
2014-12-12 12:46:14 0.02422 R 5*60 18.5
The photometry is based on USNO-B1.0 stars
USNO-B1_id RA DEC R2
1081-0038366 039.120895 +18.127567 16.32
1081-0038391 039.149945 +18.154739 17.15
1081-0038340 039.085725 +18.167617 14.41
-
TITLE: GCN CIRCULAR
NUMBER: 17305
SUBJECT: GRB 150110B: Khureltogot optical upper limit
DATE: 15/01/17 19:51:52 GMT
FROM: Alexei Pozanenko at IKI, Moscow <apozanen@iki.rssi.ru>
E. Mazaeva (IKI), S. Schmalz (AIP), N. Tungalag (Research Center of
Astronomy and Geophysics MAS), A. Volnova (IKI), I.Molotov (KIAM), A.
Pozanenko (IKI) report on behalf of larger GRB follow-up collaboration:
We observed the field of GRB GRB 150110B (Evans et al., GCN 17291) with
ORI-40 telescope of Khureltogot observatory. We obtained several
unfiltered images on Jan. 10 starting on (UT) 22:31:36. In a combined
image of the first 40 frames we do not detect any optical source within
enhanced Swift-XRT position (Beardmore et al., GCN 17294). A
photometry of the combined image is following
Date UT start t-T0 Filter Exp. ULimit (3sigma)
(mid, days) (s)
2015-01-10 22:31:36 0.03113 none 40*60 19.3
The photometry is based on USNO-B1.0 stars
USNO-B1_id RA DEC R2
1224-0426323 289.294781 +32.470745 13.52
1225-0423392 289.295778 +32.569009 13.80
-
На автомате снял GRB 150120A. Начало съемки через 57 сек после алерта. Перекачиваю кадры.
-
TITLE: GCN CIRCULAR
NUMBER: 17341
SUBJECT: GRB 150120A: ISON-NM early optical limit
DATE: 15/01/21 18:22:16 GMT
FROM: Alexei Pozanenko at IKI, Moscow <apozanen@iki.rssi.ru>
L. Elenin (KIAM), E. Mazaeva (IKI), A. Volnova (IKI), I. Molotov
(KIAM), A. Pozanenko (IKI) report on behalf of larger GRB follow-up
collaboration:
We observed the field of the Swift GRB 150120A (D'Elia et al.,
GCN 17310) with 0.4-m telescope of ISON-NM observatory in robotic mode
starting on Jan., 20 (UT) 02:58:58, i.e. 72 seconds after burst trigger.
We obtained 60 unfiltered images of 30 s exposure. We do not detect any
source within enhanced XRT error circle (Evans et al., GCN 17317):
Date UT start t-T0 Exp. Filter UL (3sigma)
(mid.,days) (s)
2015-01-20 02:58:58 0.00227 5*30 Clear 19.0
2015-01-20 02:58:58 0.01950 60*30 Clear 20.2
The photometry is based on nearby SDSS DR9 stars
SDSS9_id R_Lupton
J004136.43+340051.9 15.61
J004135.94+335950.0 14.56
J004101.23+335851.1 15.84
-
TITLE: GCN CIRCULAR
NUMBER: 17366
SUBJECT: GRB 150120B: Khureltogot optical observations
DATE: 15/01/30 21:25:11 GMT
FROM: Alexei Pozanenko at IKI, Moscow
E. Mazaeva (IKI), S. Schmalz (AIP), N. Tungalag (Research Center of
Astronomy and Geophysics MAS), A. Volnova (IKI), I.Molotov (KIAM), A.
Pozanenko (IKI) report on behalf of larger GRB follow-up collaboration:
We observed the field of GRB 150120B (D'Elia et al., GCN 17314) with
ORI-40 telescope of Khureltogot observatory on Jan., 20 starting on
(UT) 10:52:51. We obtained 90 unfiltered images of 60 s exposure.
Within enhanced Swift-XRT error circle (Goad et al., GCN 17320) we
clearly detect optical afterglow (Perley et al. GCN 17315, Guidorzi et
al. GCN 17316) in a combined image. Photometry of the afterglow is
following
Date UT start t-T0 Filter Exp. OT OT_err
(mid, days) (s)
2015-01-20 10:52:51 0.18068 none 90*60 20.75 0.20
The photometry is based on R magnitudes of nearby USNO-B1.0 stars
USNO-B1_id R2
0981-0032639 16.04
0981-0032644 17.10
-
Отснял GRB 150203A, 46 секунд после алерта, 71 секунда после события. Качаю.
-
TITLE: GCN CIRCULAR
NUMBER: 17399
SUBJECT: GRB 150203A: ISON-NM early optical limit
DATE: 15/02/04 11:46:45 GMT
FROM: Alexei Pozanenko at IKI, Moscow <apozanen@iki.rssi.ru>
L. Elenin (KIAM), A. Volnova (IKI), E. Mazaeva (IKI), I. Molotov (KIAM),
A. Pozanenko (IKI) report on behalf of larger GRB follow-up collaboration:
We observed the field of the Swift GRB 150203A (Ukwatta et al., GCN 17377)
with 0.4-m telescope of ISON-NM observatory in robotic mode starting on
Feb., 03 (UT) 04:10:19 i.e. 72 seconds after burst trigger. We obtained 60
unfiltered images of 30 s exposure. We do not detect any source within
enhanced XRT error circle (Evans et al., GCN 17384):
Date UT start t-T0 Exp. Filter UL (3sigma)
(mid.,days) (s)
2014-02-03 04:10:19 0.00130 2*30 Clear 18.0
2014-02-03 04:10:19 0.01836 60*30 Clear 19.7
The photometry is based on nearby USNO-B1.0 stars
USNO-B1.0 RA Dec R2
0968-0105340 06:33:22.23 +06:53:43.2 15.41
0969-0108800 06:33:26.73 +06:56:58.4 14.77
0969-0108730 06:33:22.76 +06:55:10.3 15.73
-
TITLE: GCN CIRCULAR
NUMBER: 17459
SUBJECT: GRB 150212A: Khureltogot optical upper limit
DATE: 15/02/12 20:37:01 GMT
FROM: Alexei Pozanenko at IKI, Moscow
E. Mazaeva (IKI), S. Schmalz (AIP), N. Tungalag (Research Center of
Astronomy and Geophysics MAS), A. Volnova (IKI), I.Molotov (KIAM), A.
Pozanenko (IKI) report on behalf of larger GRB follow-up collaboration:
We observed the field of 150212A (Page et al., GCN 17449) with ORI-40
telescope of Khureltogot observatory on Feb., 12 starting on (UT)
11:32:28. We obtained 24 unfiltered images of 15 s exposure. We did not
detect any optical counterpart in XRT error circle (Evans et al. GCN
17452). Details of the photometry are following:
Date UT start t-T0 Filter Exp. uplim (3 sigma)
(mid, days) (s)
2015-02-12 11:32:28 0.02739 none 24*15 15.8
The star mentioned by Cenko et al. (GCNs 17451, 17454) is visible in our
combined image and have a brightness of 15.85 +/- 0.25.
The photometry is based on R magnitudes of nearby USNO-B1.0 stars
USNO-B1_id R2
1374-0373548 15.39
1374-0373502 14.41
-
TITLE: GCN CIRCULAR
NUMBER: 17468
SUBJECT: GRB 150213B: AAO optical observations
DATE: 15/02/14 07:06:15 GMT
FROM: Alexei Pozanenko at IKI, Moscow
A. Pozanenko (IKI), R. Inasaridze (AAO), E. Mazaeva (IKI), A. Volnova (IKI),
Molotov (KIAM), report on behalf of larger GRB follow-up collaboration:
We observed the field of the Swift GRB 150213B (Pagani et al., GCN 17464)
with AS-32 (0.7m) telescope of Abastumani Observatory. We obtained several
unfiltered images starting on Feb. 13 (UT) 23:24:58 and ending Feb. 14 (UT)
01:06:30. In the first single images of 120 s exposure we clearly detect
the optical afterglow (Pagani et al., GCN 17464; Kann et al., GCN 17465;
Malesani et al., GCN 17467). Preliminary photometry of the afterglow is
19.7m (at 54 minutes after burst trigger) in comparison with nearby
USNO-B1.0 stars (R2 mags).
Data receiving and reduction is ongoing.
-
TITLE: GCN CIRCULAR
NUMBER: 17478
SUBJECT: GRB 150213B: AAO photometry
DATE: 15/02/19 16:49:54 GMT
FROM: Alexei Pozanenko at IKI, Moscow
A. Volnova (IKI), A. Pozanenko (IKI), E. Mazaeva (IKI), R. Inasaridze
(AAO), Sh. Makandarashvili (AAO), Molotov (KIAM), report on behalf of
larger GRB follow-up collaboration:
We report photometry of our observation (GCN 17468) of the field of the
Swift GRB 150213B (Pagani et al., GCN 17464) with AS-32 (0.7m) telescope
of Abastumani Observatory. The optical afterglow (Pagani et al., GCN
17464; Kann et al., GCN 17465; Malesani et al., GCN 17467) is visible on
single images. The photometry of the afterglow is following
Date UT start t-T0 Filter Exp. OT Err.
(mid, days) (s)
2015-02-13 23:22:23 0.03696 none 2*120 18.98 0.14
2015-02-13 23:27:43 0.04345 none 5*120 19.15 0.10
2015-02-13 23:41:05 0.05273 none 5*120 19.56 0.13
2015-02-13 23:54:27 0.06201 none 5*120 19.12 0.13
2015-02-13 24:07:49 0.07593 none 10*120 19.12 0.06
2015-02-13 24:34:32 0.09634 none 12*120 19.20 0.08
The photometry might be affected by the presence of the nearby bright
star (e.g., Kann et al., GCN 17465). The photometry is based on nearby
SDSS DR9 stars:
SDSS9_id R(Lupton)
J165343,83+341043,0 16,49
J165348,15+341040,4 15,99
J165354,27+341137,8 17,87
J165339,38+341103,1 17,14
J165341,19+341135,8 14,53
-
TITLE: GCN CIRCULAR
NUMBER: 17570
SUBJECT: GRB 150309A: AAO optic upper limit
DATE: 15/03/12 18:16:20 GMT
FROM: Alexei Pozanenko at IKI, Moscow
E. Mazaeva (IKI), R. Inasaridze (AAO), Sh. Makandarashvili (AAO), A.
Volnova (IKI), Molotov (KIAM), A. Pozanenko (IKI) report on behalf of
larger GRB follow-up collaboration:
We observed the field of the Swift GRB 150309A (Cummings et al., GCN
17553) with AS-32 (0.7m) telescope of Abastumani Observatory starting
on Mar. 10 (UT) 01:40:54. Within the enhanced XRT position (Osborne et
al., GCN 17555) we do not detect any object. An upper limit is following
Date UT start t-T0 Filter Exp. UL(3 sigma)
(mid, days) (s)
2015-03-10 01:40:54 0.12699 None 19*120 21.2
The photometry is based on USNO-B1.0 star
USNO-B1.0_id R2
1764-0030460 15.42
-
TITLE: GCN CIRCULAR
NUMBER: 17647
SUBJECT: GRB 150323A: AAO optical observations
DATE: 15/03/26 18:41:23 GMT
FROM: Alexei Pozanenko at IKI, Moscow
E. Mazaeva (IKI), R. Inasaridze (AAO), Sh. Makandarashvili (AAO), A.
Volnova (IKI), I. Molotov (KIAM), A. Pozanenko (IKI) report on behalf of
larger GRB follow-up collaboration:
We observed the field of the Swift GRB 150323A (Amaral-Rogers et al., GCN
17611) with AS-32 (0.7m) telescope of Abastumani Observatory starting on
Mar. 23 (UT) 22:47:06. Within the enhanced XRT position (Goad et al., GCN
17615) we do not detect any object. An upper limit is following
Date UT start t-T0 Filter Exp. UL(3 sigma)
(mid, days) (s)
2015-03-23 22:47:06 0.85076 None 15*180 21.2
The photometry is based on nearby USNO-B1.0 stars.
-
TITLE: GCN CIRCULAR
NUMBER: 17649
SUBJECT: GRB 150323B: Khureltogot optical observations
DATE: 15/03/27 19:01:34 GMT
FROM: Alexei Pozanenko at IKI, Moscow
E. Mazaeva (IKI), S. Schmalz (AIP), N. Tungalag (Research Center of
Astronomy and Geophysics MAS), A. Volnova (IKI), I.Molotov (KIAM), A.
Pozanenko (IKI) report on behalf of larger GRB follow-up collaboration:
We observed the field of GRB 150323B (Cummings et al., GCN 17619) with
ORI-40 telescope of Khureltogot observatory starting on Mar., 23 (UT)
16:06:11. We obtained 60 unfiltered images of 60 s exposure. Following
detection of XRT sources (D'Avanzo et al., GCN 17634) we do not detect
any source within XRT error circle of the source #1 up to a limiting
magnitude 21.2. In particular we do detect the optical source found by
Kelemen et al. (GCN 17643). At the position of XRT source #2 we found
optical source which coincides with USNO star mentioned by Xin et al.
(GCN 17638) and the star of SDSS DR9 catalog J172150.45+381700.1.
Photometry of the sources is following
Source# Date UT start t-T0 Filter Exp. mag. UL(3sigma)
(mid, days) (s)
1 2015-03-23 16:06:11 0.29859 none 60*60 n/d 21.2
2 2015-03-23 16:06:11 0.29859 none 60*60 20.7+/-0.25 21.2
The photometry is based on R magnitudes of nearby SDSS DR9 stars
SDSS9_id R(Lupton)
J172146.77+381659.6 15.65
J172126.47+382201.1 18.14
J172127.98+382239.0 15.39
-
TITLE: GCN CIRCULAR
NUMBER: 17671
SUBJECT: GRB 150323C: CrAO optical observations
DATE: 15/04/04 11:23:31 GMT
FROM: Alexei Pozanenko at IKI, Moscow
V. Rumyantsev (CrAO), K. Antoniuk (CrAO), E. Mazaeva (IKI), A. Pozanenko
(IKI) report on behalf of larger GRB follow-up collaboration:
We observed the field of the GRB 150323C (Amaral-Rogers et al., GCN 17621)
with AZT-11 telescope of CrAO observatory starting on Mar. 23 (UT) 20:09:58.
We obtained ages in R-filter of 180 s exposure under non-optimal weather
conditions and mean FWHM of about 4.7 arcsec. In the enhanced XRT position
(Osborne et al., GCN 17633) we do not detect any object. In particular we
do no detect optical afterglow (Xu et al. GCN 17625, Xin et al. GCN 17631;
Watson et al. GCN 17632). An upper limit is following
Date UT start, t-t0 Filter Exp. OT UL (3
sigma)
(mid, days) (s)
2015-03-23 20:09:58 0.14949 R 20*180 n/d 21.0
The photometry is based on nearby USNO-B1.0 stars.
-
TITLE: GCN CIRCULAR
NUMBER: 17669
SUBJECT: GRB 150323C: Khureltogot optical observations
DATE: 15/04/04 11:07:51 GMT
FROM: Alexei Pozanenko at IKI, Moscow
E. Mazaeva (IKI), S. Schmalz (AIP), N. Tungalag (Research Center of
Astronomy and Geophysics MAS), A. Volnova (IKI), I.Molotov (KIAM), A.
Pozanenko (IKI) report on behalf of larger GRB follow-up collaboration:
We observed the field of the GRB 150323C (Amaral-Rogers et al., GCN 17621)
with ORI-40 telescope of Khureltogot observatory starting on Mar., 23 (UT)
17:20:51, i.e. ~15 minutes after burst trigger. We obtained 180 unfiltered
images of 60 s exposure. Within enhanced Swift-XRT error circle (Osborne et
al., GCN 17633) we detect optical afterglow (Xu et al. GCN 17625, Xin et
al. GCN 17631; Watson et al. GCN 17632). Preliminary photometry of the
afterglow in combined images is following
Date UT start t-T0 Filter Exp. OT OT_err
(mid, days) (s)
2015-01-23 17:20:51 0.01449 none 10*60 21.1 0.3
2015-01-23 17:31:40 0.02199 none 10*60 20.5 0.25
2015-01-23 17:42:28 0.02950 none 10*60 20.8 0.25
2015-01-23 17:53:17 0.03700 none 10*60 20.2 0.2
2015-01-23 18:04:04 0.04451 none 10*60 20.0 0.2
2015-01-23 18:14:54 0.06199 none 35*60 21.3 0.3
2015-01-23 18:54:26 0.09409 none 39*60 21.0 0.3
2015-01-23 19:57:04 0.13649 none 40*60 21.5 0.4
Photometry is based on SDSS DR9 stars:
SDSS9_id R(Lupton)
J125026.13+501147.9 16.16
J125023.08+501048.2 16.84
Our photometry confirms non-monotonic behaiviour of a lighr curve of the
afterglow mentioned by Xin et al. (GCN 17631).
The light curve of GRB 150323C afterglow can be found in
http://grb.rssi.ru/GRB150323C/GRB150323C_ORI40_lc.png
-
TITLE: GCN CIRCULAR
NUMBER: 17692
SUBJECT: GRB 150413A: Khureltogot optical observations
DATE: 15/04/13 15:55:04 GMT
FROM: Alexei Pozanenko at IKI, Moscow,
S. Schmalz (AIP), A. Pozanenko (IKI), N. Tungalag (Research Center of
Astronomy and Geophysics MAS), E. Mazaeva (IKI), A. Volnova (IKI),
I.Molotov (KIAM), A. Pozanenko (IKI) report on behalf of larger GRB
follow-up collaboration:
We observed the field of the GRB 150413A (Markwardt et al., GCN 17688;
Serino et al., GCN 17691) with ORI-40 telescope of Khureltogot
observatory starting on Apr., 13 (UT) 14:08:52, i.e. ~10 minutes after
burst trigger. Within BAT/Swift error circle we clearly detect
fading optical source (Ivanov et al. GCN 17689, Tyurina et al. GCN
17690). Preliminary photometry of the source in single images is following
Date UT start t-T0 Filter Exp. OT OT_err
(mid, days) (s)
2015-04-13 14:08:52 0.0069 none 60 14.7 0.1
2015-04-13 14:39:52 0.0318 none 60 15.6 0.1
2015-04-13 15:11:54 0.0541 none 60 16.3 0.1
Photometry is based on nearby USNO-B1.0 stars, R2 mags.
Observation is continuing.
-
Получена кривая блеска покрывающая примерно пять с половиной часов наблюдения GRB150413A в Монголии.
-
TITLE: GCN CIRCULAR
NUMBER: 17718
SUBJECT: GRB 150413A: ISON-Ussuriysk optical observations
DATE: 15/04/17 21:33:14 GMT
FROM: Alexei Pozanenko at IKI, Moscow
E. Mazaeva (IKI), A. Stepura (UAFO, ISON), A. Matkin (UAFO, ISON), A.
Volnova (IKI), I. Molotov (KIAM), A. Pozanenko (IKI) report on behalf of
larger GRB follow-up collaboration:
We observed the field of the GRB 150413A (Markwardt et al., GCN 17688)
with SANTEL-650 (0.65m) telescope of UAFO/ISON-Ussuriysk observatory
sstarting on Apr., 14 (UT) 11:48:05. The afterglow (Ivanov et al., GCN
17689) is clearly detected in a combined image. Preliminary photometry the
unfiltered combined image is following
Date UT start t-T0 Filter Exp. OT OT_err
(mid, days) (s)
2015-04-14 11:48:05 0.95859 none 117*60 20.35 0.15
The photometry is based on nearby USNO-B1.0 stars
-
TITLE: GCN CIRCULAR
NUMBER: 17750
SUBJECT: GRB 150423A: TSHAO optical observations
DATE: 15/04/24 14:37:06 GMT
FROM: Alexei Pozanenko at IKI, Moscow
E. Mazaeva (IKI), A. Volnova (IKI), A. Kusakin (Fesenkov Astrophysical
Institute), A. Pozanenko (IKI) report on behalf of larger GRB follow-up
collaboration:
We observed the field of GRB 150423A (Pagani et al., GCNC 17728) with
Zeiss-1000 (East) 1-m telescope of Tien Shan Astronomical Observatory
starting on Apr. 23 (UT) 17:43:02. We obtained several images in R-filter.
In a combined image we marginally detect the source S2 and do not detect the
afterglow (Varela et al., GCN 17729). Coordinates of the S2 (J2000) 14 46
18.94 +12 17 04.4 with an uncertainty of 0.4" is marginally coincide with
coordinates reported by Varela et al. (GCN 17729).
A preliminary photometry is following
date UT start t-T0 Filter Exp. S1 S2
S2_err
(mid, days) (s)
2015-04-23 17:43:02 0.57561 R 25*600 >22.7 22.7 0.3
and based on nearby SDSS DR9 stars:
SDSS9_id R(Lupton)
J144606.22+121513.3 15.42
J144647.40+121502.9 17.54
J144648.52+121523.3 15.15
-
TITLE: GCN CIRCULAR
NUMBER: 17784
SUBJECT: GRB 150413A: CrAO optical observations
DATE: 15/04/28 19:47:55 GMT
FROM: Alexei Pozanenko at IKI, Moscow
V. Rumyantsev (CrAO), K. Antoniuk (CrAO), E. Mazaeva (IKI), A.
Pozanenko (IKI) report on behalf of larger GRB follow-up collaboration:
We observed the field of the GRB 150413A (Markwardt et al., GCN 17688)
with AZT-11 telescope of CrAO observatory starting on Apr. 13 (UT)
17:39:02. Several images were take in R-filter. The afterglow (Ivanov
et al., GCN 17689) is clearly detected in all single images of 180 s
exposure. Preliminary photometry is following
Date, UT start, OT, OT_err
2015-04-13 17 40 32.11 16.56 0.12
2015-04-13 17 43 36.17 16.97 0.30
2015-04-13 17 46 40.21 16.48 0.07
2015-04-13 17 49 44.26 16.73 0.11
2015-04-13 17 52 48.30 16.48 0.15
2015-04-13 17 55 52.37 16.62 0.13
2015-04-13 17 58 56.41 16.74 0.09
2015-04-13 18 02 00.58 16.63 0.13
2015-04-13 18 05 04.68 16.78 0.10
2015-04-13 18 08 08.76 16.77 0.09
2015-04-13 18 11 12.83 16.63 0.07
2015-04-13 18 14 16.87 16.74 0.06
2015-04-13 18 17 20.95 16.74 0.04
2015-04-13 18 20 25.30 16.76 0.06
2015-04-13 18 23 29.10 16.77 0.10
2015-04-13 18 26 33.15 16.90 0.08
2015-04-13 18 29 37.20 16.74 0.07
2015-04-13 18 32 41.25 16.71 0.05
2015-04-13 18 35 45.30 16.78 0.04
2015-04-13 18 38 49.36 16.77 0.03
2015-04-13 18 44 31.44 16.88 0.03
2015-04-13 18 47 35.48 16.81 0.03
2015-04-13 18 50 39.57 16.87 0.03
2015-04-13 18 53 43.66 16.92 0.03
2015-04-13 18 56 47.73 16.98 0.03
2015-04-13 18 59 51.90 17.02 0.03
2015-04-13 19 02 55.98 16.95 0.04
2015-04-13 19 06 00.64 16.94 0.04
2015-04-13 19 09 04.22 17.08 0.07
2015-04-13 19 12 08.35 17.05 0.06
The photometry is based on nearby USNO-B1.0 1618-0098185 (Xu et al.,
GCN 17693) assuming R=15.59.
-
TITLE: GCN CIRCULAR
NUMBER: 17815
SUBJECT: GRB 150512A: CrAO optical observations
DATE: 15/05/14 19:30:18 GMT
FROM: Alexei Pozanenko at IKI, Moscow
E. Mazaeva (IKI), V. Rumyantsev (CrAO), A. Pozanenko (IKI) report on
behalf of larger GRB follow-up collaboration:
We observed the two OT candidates (Singer et al., GCN 17809) of the
Fermi GRB 150512A (Zhang et al., GCN 17811) with ZTSh telescope of CrAO
observatory starting on May. 13 (UT) 21:04:53. Both candidats are
clearly visible in our images. Photometry of the candidates is following
iPTF15asn:
Date UT start t-T0 Filter Exp. Source Err.
(mid, days) (s)
2015-05-13 21:04:53 1.45795 R 16*120 19.20 0.03
iPTF15asm:
Date UT start t-T0 Filter Exp. Source Err.
(mid, days) (s)
2015-05-13 21:46:49 1.48417 R 12*120 19.40 0.02
Photometry of iPTF15asm might be biased by nearby galaxy SDSS
J134044.09+631954.4. However both sources do not fade in comparison with
early observations (Singer et al., GCN 17809) and most probably cannot
be considered as afterglow.
Photometry is in Vega, and based on following SDSS stars
SDSS9_id R_Lupton
J135741.63+650759.8 16.82
J135738.44+650852.4 18.03
J135752.58+650922.2 18.14
-
TITLE: GCN CIRCULAR
NUMBER: 17903
SUBJECT: GRB 150518A: possible SN observations
DATE: 15/06/06 15:19:15 GMT
FROM: Alexei Pozanenko at IKI, Moscow
A. Pozanenko (IKI), E. Mazaeva (IKI), A. Sergeev (IRA NASU, IAKhNU), I.
Reva (Fesenkov Astrophysical Institute), A. Volnova (IKI), E. Klunko
(ISTP), I. Korobtsev (ISTP), report on behalf of larger GRB follow-up
collaboration:
We observed the field of the MAXI/GSC GRB 150518A (Kawamuro, et al., GCN
17825) with AZT-33IK telescope of Sayan observatory (Mondy), Zeiss-1000
(East) 1-m telescope of Tien Shan Astronomical
Observatory and AZT-22 telescope of Maidanak observatory.
Observations are continuing in R-filter. The SDSS J153648.25+161946.9
galaxy which coincides with the optical afterglow (Xu et al., GCN 17829)
is detected in all observations. The light curve of the host
galaxy+afterglow are suggesting re-brightening with a possible maximum
brightness on June 2-5. We suggest that this re-brightening can be
attributed to Supernova associated with GRB 150518A. Preliminary light
curve of the possible SN+host can be found in
http://grb.rssi.ru/GRB150518A/GRB150518A_lc.png
Photometry of the host galaxy+SN at the possible maximum brightness are
following
Date UT start t-T0 Filter OT Err. Observatory
(mid, days)
2015-06-02 17:43:30 14.8605 R 20.89 0.13 TSHAO
2015-06-03 20:33:20 15.8862 R 20.82 0.10 Maidanak
2015-06-05 18:11:19 17.8535 R 20.90 0.07 Maidanak
Photometry is based on SDSS DR9 stars:
SDSS9_id R(Lupton)
J153646.11+161904.1 17.65
J153638.21+162002.8 18.41
J153637.55+162040.3 17.10
J153645.59+162055.5 16.35
The maximum brightness of a the possible Supernova is an agreement with
the brightness predicted for the SN at redshift z = 0.256 (Xu et al.,
GCN 17832).
-
TITLE: GCN CIRCULAR
NUMBER: 17915
SUBJECT: GRB150607A: AAO and CrAO optical observations
DATE: 15/06/08 17:49:29 GMT
FROM: Alexei Pozanenko at IKI, Moscow
E. Mazaeva (IKI), R. Inasaridze (AAO), S. Nazarov (CrAO), Sh.
Makandarashvili (AAO), A. Volnova (IKI), I. Molotov (KIAM), A. Pozanenko
(IKI) report on behalf of larger GRB follow-up collaboration:
We observed the field of GRB 150607A (Swift trigger 642620, D'Elia et
al., GCN 17904) with the AS-32 (0.7m) telescope of Abastumani
Observatory (AAO) starting on June, 07 17:54:22, and with AZT-8
telescope of CrAO starting on June, 07 19:43:21. The afterglow of GRB
150607A (Kruehler et al., GCN 17908; Hagen et al., GCN 17909) is clearly
detected in early observation in AAO. Preliminary photometry is following.
telescope UT start t-T0 Filter Exp. OT Err.
(mid, days) (s)
AS-32 17:54:22 0.45669 None 44*120 21.20 0.1
AZT-8 19:43:21 0.49864 R 6*180 >19.4 (3sigma)
Photometry is based on nearby USNO-B1.0 stars.
-
TITLE: GCN CIRCULAR
NUMBER: 17940
SUBJECT: V404 Cyg outburst (Swift trigger 643949 ): TSHAO optical observations
DATE: 15/06/17 14:52:17 GMT
FROM: Alexei Pozanenko at IKI, Moscow
E. Mazaeva (IKI), I. Reva (Fesenkov Astrophysical Institute), A. Volnova
(IKI), A. Pozanenko (IKI) report on behalf of larger GRB follow-up
collaboration:
We observed the V404 Cyg outburst detected by BAT/Swift (Barthelmy et
al., GCN 17929), GBM/Fermi (Younes, GCN 17932; Jenke GCN 17935), and
Konus-Wind (Golenetskiiet al., GCN 17938) with Zeiss-1000 (East) 1-m
telescope of Tien Shan Astronomical Observatory. Observations started on
June, 15 (UT) 18:50:44 and continued on June 16. We obtained several
images in R-filter. The V404 Cyg optical outburst reported early (Gazeas
et al, GCN 17931; Oates GCN 17933) is clearly visible. The V404 Cyg
is overexposed in our initial images but can be recovered with more
detailed analysis.
Preliminary light curve of the V404 Cyg can be found in
http://grb.rssi.ru/V404_Cyg/v404_20150615_lc.png
Photometry is based on following USNO-B1.0 stars
ID R2
1238-0434779 13.52
1238-0434864 14.12
-
TITLE: GCN CIRCULAR
NUMBER: 18035
SUBJECT: GRB 150711A: Burakan-ISON optical observations
DATE: 15/07/18 22:00:01 GMT
FROM: Alexei Pozanenko at IKI, Moscow
E. Mazaeva (IKI), V. Nevskiy (ISON) I. Molotov (KIAM), A. Pozanenko
(IKI) report on behalf of larger GRB follow-up collaboration:
We observed the field of GRB 150711A (Bernardini et al. GCN 18011) with
the 40 cm telescope of Burakan-ISON observatory starting on Jul., 11
(UT) 18:36:16, i.e. ~13 min after burst trigger. We obtained several
unfiltered images. In a combined image we do not detect any source
within the XRT error box (Osborne et al. GCN 18012) down to a limiting
magnitude of R = 16.9
Date UT start t-T0 Filter Exp. OT UL(3 sigma)
(mid, days) (s)
2015-07-11 18:36:16 0.01250 none 9*60 n/d 16.9
The photometry is based on nearby USNO-B1.0 stars.
-
TITLE: GCN CIRCULAR
NUMBER: 18094
SUBJECT: GRB 150728A: AAO optical observations
DATE: 15/07/29 18:30:31 GMT
FROM: Alexei Pozanenko at IKI, Moscow
E. Mazaeva (IKI), R. Inasaridze (AAO), Sh. Makandarashvili (AAO), A.
Volnova (IKI), I. Molotov (KIAM), A. Pozanenko (IKI) report on behalf of larger GRB follow-up collaboration:
We observed the field of the Swift GRB 150728A (Krimm et al. GCN 18087)
with AS-32 (0.7m) telescope of Abastumani Observatory starting on Jul.
28 (UT) 19:32:14. Within the enhanced XRT error circle (Beardmore et al. GCN 18088) we detected the object coinciding with the object found by FTN (Dichiara et al. GCN 18090). A photometry of the object is following
Date UT start t-T0 Filter Exp. OT
(mid, days) (s)
2015-07-28 19:32:14 0.30491 None 28*120 20.6+/-0.25
The photometry is based on nearby USNO-B1.0 stars USNO-B.1_id R2
1239-0338943 17.06
1239-0338998 16.69
The photometry could be biased by nearby star. Presently we cannot say nothing about variability of the object and more observation is necessary to confirm/reject the object as afterglow of GRB 150728A.
-
TITLE: GCN CIRCULAR
NUMBER: 18097
SUBJECT: GRB 150728A: TSHAO optical observations
DATE: 15/07/30 18:41:10 GMT
FROM: Alexei Pozanenko at IKI, Moscow
E. Mazaeva (IKI), I. Reva (Fesenkov Astrophysical Institute), A.
Volnova (IKI), A. Pozanenko (IKI) report on behalf of larger GRB
follow-up collaboration:
We observed the field of the Swift GRB 150728A (Krimm et al. GCN 18087)
with Zeiss-1000 (East) 1-m telescope of Tien Shan Astronomical
Observatory starting on Jul. 29 (UT) 18:34:50. We obtained several
images in R-filter. In a combined image we do not detect the FTN object
(Dichiara et al. GCN 18090) also visible in AAO observations (Mazaeva et
al., GCN 18094) and source A in RATIR observations (Watson et al., GCN
18096).
A photometry of the field is following
Date UT start t-T0 Filter Exp. ULimit (3sigma)
(mid, days) (s)
2015-07-29 18:34:50 1.26425 R 15*300 21.2
The photometry is based on nearby USNO-B1.0 stars
USNO-B.1_id R2
1239-0338943 17.06
1239-0338998 16.69
Also we marginally detect object B of the RATIR observations (Watson
et al., GCN 18096) in our current and previous observation of the field
(Mazaeva et al., GCN 18094).
The finding chart can be found in
http://grb.rssi.ru/GRB150728A/GRB150728A_AAO_left_TSHAO_right.png
Would the source A be a non-variable point like object with magnitudes
of r=21.37+/-0.04 and i=20.89+/-0.04 (Watson et al., GCN 18096) in
our observation the object A might be detected as the object with a
magnitude less than R=21.3 (3 sigma). So we tentatively suggest the
object A as an afterglow candidate.
-
TITLE: GCN CIRCULAR
NUMBER: 18160
SUBJECT: GRB 150817A: AAO optical observations
DATE: 15/08/18 19:09:15 GMT
FROM: Alexei Pozanenko at IKI, Moscow
E. Mazaeva (IKI), R. Inasaridze (AAO), V. Ayvazian (AAO), I. Molotov
(KIAM), A. Pozanenko (IKI) report on behalf of larger GRB follow-up
collaboration:
We observed the field of the Swift GRB 150817A (D’Elia et al., GCN
18143) with AS-32 (0.7m) telescope of Abastumani Observatory starting on
Aug. 17 (UT) 17:00:31. Within the enhanced XRT error circle (Osborne et
al., GCN 18146) we do not detect the optical afterglow (Butler et al.,
GCN 18145; Cenko et al., GCN 18153). In particular the magnitude of the
first object (Butler et al., GCN 18144) is 21.6 +/- 0.2. Upper limit of
the object is following
Date UT start t-T0 Filter Exp. UL(3 sigam)
(mid, days) (s)
2015-08-17 17:00:31 0.64432 None 24*120 22.4
The photometry is based on nearby USNO-B1.0 stars
USNO-B.1_id R2
0779-0405699 16.12
0779-0405721 16.40
0779-0405742 16.47
0779-0405723 16.94
0779-0405664 17.60
-
TITLE: GCN CIRCULAR
NUMBER: 18193
SUBJECT: GRB 150819A: Mondy and TSHAO optical upper limits
DATE: 15/08/21 23:11:50 GMT
FROM: Alexei Pozanenko at IKI, Moscow
E. Mazaeva (IKI), E. Klunko (ISTP), I. Reva (Fesenkov Astrophysical
Institute), A. Kusakin (Fesenkov Astrophysical Institute), A. Volnova
(IKI), I. Korobtsev (ISTP), A. Pozanenko (IKI) report on behalf of
larger GRB follow-up collaboration:
We observed the field of the Swift GRB 150819A (Ukwatta et al., GCN
18163) with AZT-33IK telescope of Sayan observatory (Mondy) and
Zeiss-1000 (West) 1-m telescope of Tien Shan Astronomical Observatory.
We obtained several images in R-filter in each telescope. We do not
detect any source within enhanced XRT error circle (Evans et al., GCN
18167).
Upper limits of the field are following
Date UT start t-T0 Filter Exp. UL(3 sigma) Telescope
(mid, days) (s)
2015-08-19 19:06:09 0.78197 R 30*120 22.7 AZT-33IK
2015-08-19 21:57:51 0.89889 R 10*300 19.4 Zeiss-1000
Photometry is based on USNO-B1.0 stars:
USNO-B.1_id R2
0997-0042082 17.56
0997-0042080 18.70
-
TITLE: GCN CIRCULAR
NUMBER: 18244
SUBJECT: GRB 150818A: TSHAO and SAO RAS optical observations
DATE: 15/09/07 09:29:09 GMT
FROM: Alexei Pozanenko at IKI, Moscow
E. Mazaeva (IKI), A. Moskvitin (SAO RAS), I. Reva (Fesenkov
Astrophysical Institute), A. Kusakin (Fesenkov Astrophysical
Institute), A. Volnova (IKI), A. Pozanenko (IKI) report on behalf of
larger GRB follow-up collaboration:
We are continuing observations the field of Swift GRB 150818A (D'Elia et
al., GCNC 18152) with Zeiss-1000 1-m telescope of Tien Shan
Astronomical Observatory and Zeiss-1000, 1-m telescope of SAO RAS. The
optical transient (Marshall et al. GCN 18155; McCauley et al. GCN 18161;
Mazaeva et al. GCN 18175; Sanchez-Ramirez et al. GCN 18177; Mazaeva et
al. GCN 18182, GCN 18189, GCN 18205; Schulze et al. GCN 18179) is
clearly visible on combined images in each epochs. The updated light
curve of Supernova (de Ugarte Postigo et al. GCN 18213; Mazaeva et al.
GCN 18205) + host galaxy (Sanchez-Ramirez et al., GCN 18177; de Ugarte
Postigo et al. GCN 18213) can be found in
http://grb.rssi.ru/GRB150818A/GRB150818A_R_lc.png
The evident maximum of SN brightness (in Rc-filter) was on ~ Sep. 1-2,
and the brightness of SN+host galaxy was R ~ 21.1 +/- 0.1 on Sep. 6 (UT)
18:00. We are grateful to V.P. Goranskiy for assistance in SAO RAS
observations.
-
TITLE: GCN CIRCULAR
NUMBER: 18307
SUBJECT: GRB 150911A: Khureltogot upper limit
DATE: 15/09/14 07:20:31 GMT
FROM: Alexei Pozanenko at IKI
E. Mazaeva (IKI), S. Schmalz (AIP), N. Tungalag (Research Center of Astronomy and Geophysics MAS), A. Volnova (IKI), I.Molotov (KIAM), A. Pozanenko (IKI) report on behalf of larger GRB follow-up collaboration:
We observed the field of GRB 150911A (Starling et al., GCN 18280) with ORI-40 telescope of Khureltogot observatory starting on Sep., 11 (UT) 19:03:00, i.e. ~23 minutes after the burst trigger. We do not detect any object within enhanced XRT error circle (Goad et al., GCN 18283). Photometry of the field is following
Date UT start t-T0 Filter Exp. Upper_Limit (3sigma)
(mid, days) (s)
2015-09-11 19:03:00 0.0351 none 45*60 20.9
Photometry is base on nearby USNO-B.1 stars
USNO-B.1_id R2
0957-0043966 15.54
0957-0043954 16.24
0957-0043961 16.45
-
TITLE: GCN CIRCULAR
NUMBER: 18281
SUBJECT: GRB 150910A: TSHAO optical observations
DATE: 15/09/11 19:27:21 GMT
FROM: Alexei Pozanenko at IKI, Moscow
E. Mazaeva (IKI), I. Reva (Fesenkov Astrophysical Institute), A.
Kusakin (Fesenkov Astrophysical Institute), A. Volnova (IKI), A.
Pozanenko (IKI) report on behalf of larger GRB follow-up collaboration:
We observed the field of GRB 150910A (Pagani et al., GCN 18264) with
Zeiss-1000 (East) 1-m telescope of Tien Shan Astronomical Observatory on
Sep. 10 (UT) 18:02:59 -- 20:37:38. We obtained several images in R and
B filters. In both filters the afterglow (Pagani et al., GCN 18264;
Zheng & Filippenko, GCN 18265) is clearly visible. Within 2.5 hours of
observations we do not detect significant fading of the afterglow. The
photometry of combined images are following
Date UT start t-T0 Filter Exp. OT Err
(mid, days) (s)
2015-09-10 18:08:20 0.42807 R 11*300 20.18 +/- 0.05
2015-09-10 18:02:59 0.42436 B 12*300 20.85 +/- 0.08
The photometry is based on nearby SDSS stars
SDSS_id R(Lupton)
J002232.47+332751.3 16.29
J002236.24+332854.2 15.92
J002241.61+332836.1 16.23
J002248.33+332723.4 16.76
J002231.90+333004.8 16.93
J002225.39+332809.6 16.12
J002246.76+332716.9 17.63
Our photometry in R-filter is in agreement with in subsequent
observations (Moskvitin & Goranskij, GCN 18275).
-
TITLE: GCN CIRCULAR
NUMBER: 18287
SUBJECT: GRB 150910A: Chuguev observatory optical observations
DATE: 15/09/12 02:51:11 GMT
FROM: Alexei Pozanenko at IKI, Moscow
Yu. Krugly (IA KhNU), E. Mazaeva (IKI), V. Shevchenko (IA KhNU), T.
Gromakina (IA KhNU), I. Molotov (KIAM), A. Pozanenko (IKI) report on
behalf of larger GRB follow-up collaboration:
We observed the field of GRB 150910A (Pagani et al., GCN 18264) with
0.7m telescope of Institute of Astronomy, Kharkiv National University
starting on Sep. 10 (UT) 21:41:15. We obtained several images in R B
filter. The afterglow (Pagani et al., GCN 18264; Zheng & Filippenko,
GCN 18265) is clearly visible in a combined image. The photometry of the
combined image is following
Date UT start t-T0 Filter Exp. OT Err
(mid, days) (s)
2015-09-10 21:41:15 0.52235 R 11*180 20.25 +/-0.14
The photometry is based on SDSS stars used in GCN 18281 (Mazaeva et al.)
-
TITLE: GCN CIRCULAR
NUMBER: 18289
SUBJECT: GRB 150910A: AAO optical observations
DATE: 15/09/12 03:14:23 GMT
FROM: Alexei Pozanenko at IKI, Moscow
E. Mazaeva (IKI), R. Inasaridze (AAO), V. Zhuzhunadze (AAO), I. Molotov
(KIAM), A. Pozanenko (IKI) report on behalf of larger GRB follow-up
collaboration:
We observed the field of GRB 150910A (Pagani et al., GCN 18264) with
with AS-32 (0.7m) telescope of Abastumani Observatory starting on Sep.
10 (UT) 18:53:54. We obtained several unfiltered images. The afterglow
(Pagani et al., GCN 18264; Zheng & Filippenko, GCN 18265) is clearly
visible in a combined image. The photometry of the combined image is
following
Date UT start t-T0 Filter Exp. OT Err
(mid, days) (s)
2015-09-10 18:53:54 0.45834 none 50*120 20.16 +/- 0.06
The photometry is based on SDSS stars used in GCN 18281 (Mazaeva et al.)
-
TITLE: GCN CIRCULAR
NUMBER: 18309
SUBJECT: GRB 150911A: Chuguev observatory upper limit
DATE: 15/09/14 08:47:21 GMT
FROM: Alexei Pozanenko at IKI
Yu. Krugly (IA KhNU), V. Shevchenko (IA KhNU), T. Gromakina (IA KhNU), I. Molotov (KIAM), E. Mazaeva (IKI), A. Pozanenko (IKI) report on behalf of larger GRB follow-up collaboration:
We observed the field of GRB 150911A (Starling et al., GCN 18280) with 0.7m telescope of Institute of Astronomy, Kharkiv National University starting on Sep. 12 (UT) 01:07:23. We do not detect any object within enhanced XRT error circle (Goad et al., GCN 18283). Photometry of the field is following
Date UT start t-T0 Filter Exp. Upper_Limit (3sigma)
(mid, days) (s)
2015-09-12 01:07:23 0.2804 R 11*180 20.8
Photometry is based on nearby USNO-B.1 stars
USNO-B.1_id R2
0957-0043966 15.54
0957-0043954 16.24
0957-0043961 16.45
-
TITLE: GCN CIRCULAR
NUMBER: 18319
SUBJECT: GRB 150910A: TSHAO optical observations
DATE: 15/09/16 11:35:17 GMT
FROM: Alexei Pozanenko at IKI, Moscow
A. Volnova (IKI), I. Reva (Fesenkov Astrophysical Institute), A. Kusakin
(Fesenkov Astrophysical Institute), E. Mazaeva (IKI), A. Pozanenko
(IKI) report on behalf of larger GRB follow-up collaboration:
We observed the field of GRB 150910A (Pagani et al., GCN 18264) with
Zeiss-1000 (East) 1-m telescope of Tien Shan Astronomical Observatory on
Sep. 11 and Sep. 12. We obtained several images in R filter. The
afterglow (Pagani et al., GCN 18264; Zheng & Filippenko, GCN 18265) is
clearly visible in a combined image on Sep. 11 and on Sep. 12 we
obtained upper limit. The photometry of the combined images are following
Date UT start t-T0 Filter Exp. OT Err
(mid, days) (s)
2015-09-11 18:39:41 1.38753 R 16*300 21.87 0.10
2015-09-12 19:03:44 2.39553 R 21*300 >22.3 (3 sigma)
The photometry is based on SDSS stars used in GCN 18281 (Mazaeva et al.)
-
TITLE: GCN CIRCULAR
NUMBER: 18327
SUBJECT: GRB 150910A: AAO optical observations
DATE: 15/09/17 07:27:12 GMT
FROM: Alexei Pozanenko at IKI, Moscow
E. Mazaeva (IKI), R. Inasaridze (AAO), O. Kvaratskhelia(AAO), I. Molotov
(KIAM), A. Pozanenko (IKI) report on behalf of larger GRB follow-up
collaboration:
We observed the field of GRB 150910A (Pagani et al., GCN 18264) with
AS-32 (0.7m) telescope of Abastumani Observatory starting on Sep. 11
(UT) 20:32:45. We obtained several unfiltered images. The afterglow
(Pagani et al., GCN 18264; Zheng & Filippenko, GCN 18265) is clearly
visible in a combined image. The photometry of the combined image is
following
Date UT start t-T0 Filter Exp. OT Err
(mid, days) (s)
2015-09-11 20:32:45 1.46327 none 49*120 21.55 +/- 0.08
The photometry is based on SDSS stars used in GCN 18281 (Mazaeva et
al.), R magnitude deduced from Lupton's transformations.
-
Всем привет!
В НМ снова запущена система автоматического наблюдения GRB, в Австралии запущу как только откроют нужные порты.
Лёня
-
TITLE: GCN CIRCULAR
NUMBER: 18480
SUBJECT: GRB 151027A : ISON-NM early optical detection
DATE: 15/10/27 05:47:05 GMT
FROM: Alexei Pozanenko at IKI, Moscow <apozanen@iki.rssi.ru>
L. Elenin (KIAM), E. Mazaeva (IKI), A. Volnova (IKI), I. Molotov (KIAM),
A. Pozanenko (IKI) report on behalf of larger GRB follow-up collaboration:
We observed the field of the Swift GRB 151027A (Maselli et al., GCN 18478)
with 0.4-m telescope of ISON-NM observatory in robotic mode starting on
Oct., 27 (UT) 03:59:43 i.e. 79 seconds after burst trigger. We obtained 50
unfiltered images of 30 s exposure. We clearly detect the optical
counterpart of GRB 151027A (Maselli et al., GCN 18478; Zheng and
Filippenko, GCN 18479) in coordinates (J2000) 18 09 56.69 +61 21 13.2. In
the first image we estimated brightness of the optical counterpart as ~14m.
-
Интересно, чей снимок всё-таки был первым, ISON-NM или KAIT?
-
KAIT не написал в циркуляре время начала наблюдений, просто сказав что "сразу после получения алерта". У нас очень плохие кадры, все через облака. Но на первых кадрах источник хорошо виден.
-
TITLE: GCN CIRCULAR
NUMBER: 18556
SUBJECT: GRB 150910A: CrAO optical observations
DATE: 15/11/03 19:13:53 GMT
FROM: Alexei Pozanenko at IKI, Moscow
V. Rumyantsev (CrAO), E. Mazaeva (IKI), A. Volnova (IKI), A. Pozanenko
(IKI) report on behalf of larger GRB follow-up collaboration:
We observed the field of the Swift GRB 150910A (Pagani et al., GCN
18264) with ZTSh telescope of CrAO observatory on Sep. 11 and Sep. 12.
We took several images in R,B-filters of 120 s exposure under good
weather conditions on Sep. 11 and non-optimal weather conditions (mean
seeing of 4") on Sep. 12.
The photometry of the afterglow (Pagani et al., GCN 18264; Zheng &
Filippenko, GCN 18265) is following
Date UT start, t-t0 Filter Exp. OT OT_err UL(3sigma)
(mid, days) (s)
2015-09-11 17:56:37 1.3762 R 10*120 21.69 0.12 22.9
2015-09-11 18:18:31 1.4022 B 20*120 22.48 0.15 23.5
2015-09-11 18:39:47 1.4244 R 10*120 21.82 0.10 23.2
2015-09-11 19:22:17 1.4436 B 16*120 22.09 0.10 23.5
2015-09-12 18:04:32 2.3801 R 10*120 n/d n/a 22.3
The photometry is based on SDSS stars used in GCN 18281 (Mazaeva et al.)
-
TITLE: GCN CIRCULAR
NUMBER: 18618
SUBJECT: GRB 151118A: ISON-NM early optical limit
DATE: 15/11/18 14:44:20 GMT
FROM: Alexei Pozanenko at IKI, Moscow <apozanen@iki.rssi.ru>
L. Elenin (KIAM), A. Volnova (IKI), E. Mazaeva (IKI), I. Molotov
(KIAM), A. Pozanenko (IKI) report on behalf of larger GRB follow-up
collaboration:
We observed the field of the Swift GRB 151118A (Amaral-Rogers et al.,
GCN 18611) with 0.4-m telescope of ISON-NM observatory in robotic mode
starting on Nov., 18 (UT) 03:08:32 i.e. 122 seconds after burst
trigger. We obtained 6 unfiltered images of 30 s exposure under
unfavorable weather conditions. We do not detect any source within
enhanced XRT error circle (Evans et al., GCN 18614):
Date UT start t-T0 Filter Exp. UL(3 sigma)
(mid, days) (s)
2015-11-28 03:08:32 0.00158 None 1*30 17.4
2015-11-28 03:08:32 0.00265 None 5*30 18.0
The photometry is based on nearby USNO-B1.0 stars:
USNO-B1.0 id R2
1559-0079254 15.66
1558-0078601 16.03
1558-0078636 14.62
-
TITLE: GCN CIRCULAR
NUMBER: 18627
SUBJECT: GRB 151118A: AAO optical upper limit
DATE: 15/11/20 15:09:39 GMT
FROM: Alexei Pozanenko at IKI, Moscow
E. Mazaeva (IKI), R. Inasaridze (AAO), V. Ayvazian (AAO), A. Volnova
(IKI), I. Molotov (KIAM), A. Pozanenko (IKI) report on behalf of larger
GRB follow-up collaboration:
We observed the field of the Swift GRB 151118A (Amaral-Rogers et al.,
GCN 18611) with AS-32 (0.7m) telescope of Abastumani Observatory
starting on Nov. 18 (UT) 18:08:09. We do not detect any source within
enhanced XRT error circle (Evans et al., GCN 18614):
Date UT start t-T0 Filter Exp. UL(3 sigam)
(mid, days) (s)
2015-11-18 18:08:09 0.65922 None 35*120 22.1
The photometry is based on nearby USNO-B1.0 stars
USNO-B.1_id R2
1559-0079254 15.66
1559-0079234 16.18
1559-0079286 15.60
1559-0079243 16.15
1558-0078596 14.88
-
TITLE: GCN CIRCULAR
NUMBER: 18635
SUBJECT: GRB 151027A: Maidanak optical observations
DATE: 15/11/22 21:48:09 GMT
FROM: Alexei Pozanenko at IKI, Moscow
A. Pozanenko (IKI), E. Mazaeva (IKI), A. Volnova (IKI), O. Burhonov
(UBAI) report on behalf of larger GRB follow-up collaboration:
We observed the Swift GRB 151027A (Maselli et al., GCN 18478) with
AZT-22 telescope of Maidanak observatory equipped with SNUCAM in R
filter. We obtained several images in R-filter on Oct., 30, Nov., 6 and
Nov., 9 under mean FWHM of about 0.9". The afterglow (Maselli et al.,
GCN 18478; Zheng and Filippenko, GCN 18479) is clearly detected in each
epoch. The afterglow is well separated from nearby source (Dichiara et
al.GCN 18510; Mazaeva et al., GCN 18559).
Preliminary photometry of the afterglow is following
Date UT start t-T0 Filter Exp. OT Err.
(mid, days) (s)
2015-11-06 15:04:07 10.474 R 10*300 23.30 0.24
2015-11-09 14:06:04 13.443 R 10*300 23.33 0.20
The photometry is based on nearby USNO-B1.0 stars
USNO-B.1_id R2
1513-0237223 16.66
1513-0237251 16.81
1513-0237270 16.78
A preliminary light curve of the afterglow can be found in
http://grb.rssi.ru/GRB151027A/GRB151027A_lc.png
At this time it is unclear what is a reason of flattening of the light
curve at 11-13 days. It might be SN signature or it is continuing bumps
of the light curve previously seen at least on ~ 1.3 days and ~3 days.
-
TITLE: GCN CIRCULAR
NUMBER: 18676
SUBJECT: GRB 151205A: Khureltogot upper limit
DATE: 15/12/09 10:19:21 GMT
FROM: Alexei Pozanenko at IKI, Moscow
A. Volnova (IKI), S. Schmalz (AIP), E. Mazaeva (IKI), N. Tungalag
(Research Center of Astronomy and Geophysics MAS), I. Molotov (KIAM),
A. Pozanenko (IKI) report on behalf of larger GRB follow-up collaboration:
We observed the field of Swift GRB 151205A (Cummings et al., GCN 18657)
with ORI-40 telescope of Khureltogot observatory starting on Dec., 5
(UT) 20:49:25, i.e. ~6 hours after the burst trigger. We do not detect
any object within enhanced XRT error circle (Osborne et al., GCN 18658).
Photometry of the field is following
Date UT start t-T0 Filter Exp. Upper_Limit (3sigma)
(mid, days) (s)
2015-12-05 20:49:25 0.24451 none 90*60 21.3
Photometry is based on nearby SDSS stars,
R magnitude deduced from Lupton's transformations.
SDSS id R(Lupton)
J151723.45+354524.6 13.849 0.011
J151723.30+354351.0 14.562 0.012
J151718.79+354350.3 15.801 0.013
-
TITLE: GCN CIRCULAR
NUMBER: 18708
SUBJECT: GRB 151215A: TSHAO optical observations
DATE: 15/12/17 17:16:14 GMT
FROM: Alexei Pozanenko at IKI, Moscow
E. Mazaeva (IKI), I. Reva (Fesenkov Astrophysical Institute), A. Kusakin
(Fesenkov Astrophysical Institute), A. Volnova (IKI), A. Pozanenko (IKI)
report on behalf of larger GRB follow-up collaboration:
We observed the field of GRB 151215A (Gibson et al., GCN 18691) with
Zeiss-1000 (East) 1-m telescope of Tien Shan Astronomical Observatory
starting on Dec. 15 (UT) 16:47:23. We obtained several images in R
filter. The afterglow (Cenko, GCN 18692) is detected in a combined
image. Preliminary photometry of the afterglow is following
Date UT start t-T0 Filter Exp. OT Err
(mid, days) (s)
2015-12-15 16:47:23 0.61190 R 21*300 22.1 0.3
The photometry is based on nearby SDSS stars.
-
TITLE: GCN CIRCULAR
NUMBER: 18721
SUBJECT: V404Cyg Swift Trigger 668097: TSHAO optical observations
DATE: 15/12/24 18:31:34 GMT
FROM: Alexei Pozanenko at IKI, Moscow
E. Mazaeva (IKI), I. Reva (Fesenkov Astrophysical Institute), A. Kusakin
(Fesenkov Astrophysical Institute), A. Volnova (IKI), A. Pozanenko (IKI)
report on behalf of larger GRB follow-up collaboration:
We observed V404 Cyg after Swift BAT trigger 668097 (Barthelmy et al.,
GCN 18716) with Zeiss-1000 (East) 1-m telescope of Tien Shan
Astronomical Observatory. Observations started on Dec., 23 (UT)
12:19:13. We obtained 165 images in R-filter of 30 s exposure.
Preliminary light curve
http://grb.rssi.ru/V404_Cyg/v404Cyg_20151223_lc.pngof the V404 Cyg can
be found in http://grb.rssi.ru/V404_Cyg/v404Cyg_20151223_lc.png
Photometry is based on following USNO-B1.0 stars
ID R2
USNO-B1.0_id R2
1238-0435152 15.98
1239-0424177 14.99
1239-0424179 15.61
1238-0435111 16.33
-
А.П.:
В 2015 продолжились наблюдения транзиентных источников, в основном, космических гамма-всплесков. (Статистика наблюдений за прошедшие годы представлена на Рисунке 1.) Всего за год было проведено чуть менее 70 наблюдений 34 областей локализации гамма-всплесков, что составляет примерно треть гамма-всплесков, зарегистрированных в 2015 КА Swift и INTEGRAL (Табл. 1), выпущено 48 циркуляров GCN (http://gcn.gsfc.nasa.gov/). Надо отметить, что не все наблюдения могут попадать в публикацию GCN, так как, например, качество наблюдений не позволяет их использовать, или же результаты наблюдений других сетей, опубликованные раньше, снижают ценность наших менее глубоких наблюдений. Именно поэтому необходимо уделять серьезное внимание передаче данных в первый день наблюдений. С другой стороны, некоторые наблюдения могут войти в статьи по наиболее интересным всплескам, публикуемые существенно позже, и связано это с тем, что зачастую необходимы глубокие дополнительные фотометрические и спектроскопические наблюдения для исследования Сверхновых, ассоциированных с источниками гамма-всплесков, родительских галактик и проведении тщательных калибровок.
В 13 случаях было зарегистрировано оптическое послесвечение, в остальных случаях был получен верхний предел. Как и прежде, лидером по количеству и качеству наблюдений остаются обсерватории Абастумани и Хуретогот, а по скорости реагирования – роботизированный телескоп SANTEL-400AN обсерватории ISON-NM, к которому в 2015 присоединилась обсерватория Южного неба ISON-SSO. Традиционно, ISON-NM и ISON-SSO проводят наблюдения только таких событий, когда существует возможность зарегистрировать оптический кандидат первыми и провести синхронные наблюдения с наблюдениями в гамма-диапазоне, и такие наблюдения являются наиболее ценными. Наилучшая скорость реакции составила 72 с от момента регистрации всплеска GRB 150203A космической обсерваторией Swift до начала оптических наблюдений ISON-NM (GCN 17399). Несмотря на общее увеличения количества наблюдений (Табл.1), полностью прекратились наблюдения в Благовещенске, Китабе и Краснодаре. Вместе с тем, учитывая необходимость быстрого реагирования на гамма-всплески и обеспечения максимального покрытия при наблюдении оптического компонента, продолжение наблюдения гамма-всплесков в этих обсерваториях и вовлечение в наблюдения других обсерваторий сети чрезвычайно важны.
Удачей можно считать быстрые наблюдения вспышечной активности источника v404 Cygni (ближайшей к нам двойной системы с черной дырой) в июне 2015, вначале идентифицированного как гамма-всплеск GRB 150615B. Источник в первые часы и наблюдался именно как гамма-всплеск (наблюдения по программе гамма-всплесков были проведены в ТШАО, Хурелтоготе, КрАО и Абастумани), и лишь позже, после его отождествления с v404 Cygni, наблюдения были продолжены, получены плотные фотометрические ряды, которые вошли в одну из публикаций по этому источнику, впрочем, публикации более чем достойная, так как вышла она в журнале Nature (http://www.nature.com/nature/journal/v529/n7584/full/nature16452.html). Кстати, активность v404 Cygni продолжается и в 2016, и от него можно еще ожидать сюрпризов. Наблюдения которых, как показала практика, возможны телескопами с малой апертурой.
-
TITLE: GCN CIRCULAR
NUMBER: 18891
SUBJECT: GRB 151228B: AbAO optical upper limit
DATE: 16/01/18 21:23:00 GMT
FROM: Alexei Pozanenko at IKI, Moscow
E. Mazaeva (IKI), R. Inasaridze (AbAO), V. Ayvazian (AbAO), A. Volnova
(IKI), I. Molotov (KIAM), A. Pozanenko (IKI) report on behalf of larger
GRB follow-up collaboration:
We observed the field of the Swift GRB 151228B (Lien et al., GCN
18739) with AS-32 (0.7m) telescope of Abastumani Observatory starting on
Dec. 29 (UT) 14:38:28. We do not detect any source within
enhanced XRT error circle (Goad et al., GCN 18743):
Date UT start t-T0 Filter Exp. UL(3 sigma)
(mid, days) (s)
2015-12-29 14:38:28 0.69297 None 35*120 22.1
The photometry is based on nearby SDSS-DR9 stars:
SDSS-DR9_id R_Lupton
J225738.02+080336.8 18.18
J225747.18+080340.7 16.86
J225736.71+080628.4 17.72
J225752.89+080438.1 17.46
J225726.79+080540.6 16.99
-
TITLE: GCN CIRCULAR
NUMBER: 18920
SUBJECT: GRB 160121A: TSHAO optical afterglow confirmation
DATE: 16/01/22 00:36:48 GMT
FROM: Alexei Pozanenko at IKI, Moscow
E. Mazaeva (IKI), I. Reva (Fesenkov Astrophysical Institute), A. Kusakin
(Fesenkov Astrophysical Institute), A. Volnova (IKI), A. Pozanenko (IKI)
report on behalf of a larger GRB follow-up collaboration:
We observed the field of the Swift GRB 160121A (Hagen et al., GCN 18912)
with Zeiss-1000 (East) 1-m telescope of Tien Shan Astronomical Observatory
starting on Jan. 21 (UT) 16:04:44. We obtained several images in R filter.
We detect afterglow (Oates et al., GCN 18917) in a combined image within
center of the enhanced Swift-XRT position (Osborne et al., GCN 18918).
Preliminary photometry of the afterglow is following
Date UT start t-T0 Filter Exp. OT Err
(mid, days) (s)
2016-01-21 16:04:44 0.12598 R 29*180 20.26 0.22
The photometry is based on nearby USNO-B1.0 stars.
USNO-B1.0_id R2
0664-0122909 16.87
0664-0122918 16.73
0664-0122943 17.72
0664-0123015 18.03
0663-0123485 16.91
-
TITLE: GCN CIRCULAR
NUMBER: 18933
SUBJECT: GRB 160121A: TSHAO optical observation
DATE: 16/01/24 21:29:54 GMT
FROM: Alexei Pozanenko at IKI, Moscow
E. Mazaeva (IKI), I. Reva (Fesenkov Astrophysical Institute), A. Kusakin
(Fesenkov Astrophysical Institute), A. Volnova (IKI), A. Pozanenko (IKI)
report on behalf of a larger GRB follow-up collaboration:
We observed the field of the Swift GRB 160121A (Hagen et al., GCN
18912) with Zeiss-1000 (East) 1-m telescope of Tien Shan Astronomical
Observatory starting on Jan. 22 (UT) 16:17:07. We obtained several
images in R filter. We do not detect afterglow (Oates et al., GCN
18917; Mazaeva et al., GCN 18920) in a combined image. Preliminary upper
limit is following
Date UT start t-T0 Filter Exp. OT UL (3 sigma)
(mid, days) (s)
2015-01-22 16:17:07 1.13572 R 30*180 n/d 21.2
The photometry is based on nearby USNO-B1.0 stars (see GCN 18920).
-
TITLE: GCN CIRCULAR
NUMBER: 18949
SUBJECT: GRB 160127A: Khureltogot optical observations
DATE: 16/01/29 11:37:43 GMT
FROM: Alexei Pozanenko at IKI, Moscow
E. Mazaeva (IKI), S. Schmalz (AIP), A. Volnova (IKI), N. Tungalag
(Research Center of Astronomy and Geophysics MAS), I. Molotov (KIAM),
A. Pozanenko (IKI) report on behalf of larger GRB follow-up collaboration:
We observed the field of Swift GRB 160127A (Amaral-Rogers et al., GCN
18938) with ORI-40 telescope of Khureltogot observatory starting on
Jan., 27 (UT) 19:32:48. We marginally detect optical afterglow
(Amaral-Rogers et al., GCN 18938; Klotz et al., GCN 18939; Cucchiara et
al., GCN 18941). Preliminary photometry of the afterglow is following
Date UT start t-T0 Filter Exp. OT Err UL(3sigma)
(mid, days) (s)
2016-01-27 19:32:48 0.48499 none 90*60 21.0 0.35 21.0
2016-01-27 21:10:18 0.55333 none 89*60 n/d n/d 21.2
Photometry is based on nearby SDSS stars, R magnitude deduced from
Lupton's transformations.
SDSS_DR9_id R(Lupton)
J150358.16+000929.4 16.36
J150406.02+000738.4 16.03
J150341.40+000835.8 15.17
J150334.55+000806.9 16.20
J150334.11+000513.3 17.32
-
TITLE: GCN CIRCULAR
NUMBER: 18962
SUBJECT: GRB 160131A: Khureltogot optical observations
DATE: 16/01/31 20:22:21 GMT
FROM: Alexei Pozanenko at IKI
E. Mazaeva (IKI), S. Schmalz (AIP), N. Tungalag (Research Center of Astronomy and Geophysics MAS), A. Volnova (IKI), I. Molotov (KIAM), A. Pozanenko (IKI) report on behalf of larger GRB follow-up collaboration:
We observed the field of Swift GRB 160131A (Page et al., GCN Page) with ORI-40 telescope of Khureltogot observatory on Jan., 31 from(UT) 11:14 up to (UT) 16:34. We obtained several unfilteed images.
We clearly detect optical afterglow (Page et al., GCN 18951; Yurkov et al., GCN 18952; Guidorzi et al., GCN 18953; Xin et al., GCN 18954; Xin et al., GCN 18955; Watson et al., GCN 18956). Preliminary photometry of the afterglow in the first images is following
Date UT start t-T0 Filter Exp. OT Err
(mid, days) (s)
2016-01-31 11:14:41 0.12106 20 16.43 0.10
2016-01-31 11:27:26 0.13015 60 16.49 0.04
2016-01-31 11:28:30 0.13089 60 16.51 0.04
2016-01-31 11:29:35 0.13164 60 16.50 0.04
2016-01-31 11:30:39 0.13238 60 16.52 0.05
2016-01-31 11:31:43 0.13388 60 16.61 0.05
2016-01-31 11:33:52 0.13462 60 16.46 0.04
2016-01-31 11:34:57 0.13537 60 16.53 0.05
2016-01-31 11:36:01 0.13611 60 16.58 0.05
2016-01-31 11:37:06 0.13686 60 16.62 0.05
2016-01-31 11:38:10 0.13760 60 16.56 0.04
2016-01-31 11:39:14 0.13834 60 16.58 0.04
2016-01-31 11:40:18 0.13909 60 16.57 0.04
Photometry is based on nearby USNO B1.0 stars, R2 magnitude.
-
TITLE: GCN CIRCULAR
NUMBER: 18972
SUBJECT: GRB 160131A: AbAO optical observations
DATE: 16/02/01 20:28:41 GMT
FROM: Alexei Pozanenko at IKI, Moscow
E. Mazaeva (IKI), R. Inasaridze (AbAO), V. Ayvazian (AbAO), A. Volnova
(IKI), I. Molotov (KIAM), A. Pozanenko (IKI) report on behalf of larger
GRB follow-up collaboration:
We observed the field of Swift GRB 160131A (Page et al., GCN 18951) with
AS-32 (0.7m) telescope of Abastumani Observatory starting on Jan. 31
(UT) 19:16:57. We obtained several unfiltered images of 120 s exposure.
We detect optical afterglow (Page et al., GCN 18951; Yurkov et al., GCN
18952; Guidorzi et al., GCN 18953; Xin et al., GCN 18954; Xin et al.,
GCN 18955; Watson et al., GCN 18956). Preliminary light curve can be
found in http://grb.rssi.ru/GRB160131A/GRB160131A_20160131_AbAO_lc.png
The photometry is base on nearby USNO-B1.0 stars:
USNO-B.1_id R2
0829-0078223 15.70
0829-0078147 14.56
0828-0074893 14.88
0828-0074768 14.81
-
TITLE: GCN CIRCULAR
NUMBER: 18990
SUBJECT: GRB 160203A: TSHAO optical observations
DATE: 16/02/05 13:54:34 GMT
FROM: Alexei Pozanenko at IKI, Moscow
A. Volnova (IKI), E. Mazaeva (IKI), A. Kusakin (Fesenkov Astrophysical
Institute), A. Pozanenko (IKI) report on behalf of a larger GRB
follow-up collaboration:
We observed the field of the Swift GRB 160203A (D'Avanzo et al., GCN
18979) with Zeiss-1000 (West) 1-m telescope of Tien Shan Astronomical
Observatory starting on Feb. 03 (UT) 20:31:45. We obtained several
images in R filter. We marginally (S/N ~ 2) detect afterglow (Kruehler
et al., GCN 18980) in a combined image. Preliminary photometry of the
afterglow is following
Date UT start t-T0 Filter Exp. OT Err
(mid, days) (s)
2016-02-03 20:31:45 0.80045 R 21*300 23.0 0.5
The photometry is based on nearby USNO-B1.0 stars:
USNO-B1.0_id R2
0652-0250834 18.04
0651-0249689 18.51
-
TITLE: GCN CIRCULAR
NUMBER: 18992
SUBJECT: GRB 160131A: TSHAO optical observations
DATE: 16/02/05 18:49:47 GMT
FROM: Alexei Pozanenko at IKI, Moscow
E. Mazaeva (IKI), I. Reva (Fesenkov Astrophysical Institute), A. Volnova
(IKI), A. Kusakin (Fesenkov Astrophysical Institute), A. Pozanenko
(IKI) report on behalf of larger GRB follow-up collaboration:
We observed the Swift GRB 160131A (Page et al., GCN 18951) with
Zeiss-1000 (East) 1-m telescope of Tien Shan Astronomical Observatory
starting on Feb. 05 (UT) 14:22:45. We obtained several images in R
filter. We clearly detect optical afterglow (Page et al., GCN 18951;
Yurkov et al., GCN 18952; Guidorzi et al., GCN 18953; Xin et al., GCN
18954; Xin et al., GCN 18955; Watson et al., GCN 18956) in a combined
image. Preliminary photometry is following
Date UT start t-T0 Filter Exp. OT Err.
(mid, days) (s)
2016-02-05 14:22:45 5.28802 R 21*300 22.40 0.20
Photometry is based on nearby USNO-B1.0 stars
USNO-B.1_id R2
0829-0078223 15.70
0829-0078147 14.56
0829-0078167 17.71
0829-0078222 18.96
0829-0078226 18.69
0829-0078129 17.62
-
TITLE: GCN CIRCULAR
NUMBER: 19004
SUBJECT: GRB 160131A: TSHAO optical observations
DATE: 16/02/08 22:04:39 GMT
FROM: Alexei Pozanenko at IKI, Moscow
E. Mazaeva (IKI), I. Reva (Fesenkov Astrophysical Institute), A. Volnova
(IKI), A. Kusakin (Fesenkov Astrophysical Institute), A. Pozanenko
(IKI) report on behalf of larger GRB follow-up collaboration:
We observed the Swift GRB 160131A (Page et al., GCN 18951) with
Zeiss-1000 (East) 1-m telescope of Tien Shan Astronomical Observatory.
We obtained several images in R filter on Feb. 06 and Feb. 07.The
optical afterglow (Page et al., GCN 18951; Yurkov et al., GCN 18952;
Guidorzi et al., GCN 18953; Xin et al., GCN 18954; Xin et al., GCN
18955; Watson et al., GCN 18956) is detected on Feb. 06 and not detected
on Feb. 07. Preliminary photometry is following
Date UT start t-T0 Filter Exp. OT Err.
(mid, days) (s)
2016-02-06 13:45:54 6.26762 R 21*300 22.40 0.3
2016-02-07 13:30:04 7.25330 R 21*300 >22.40 (3sigma)
Photometry is based on nearby USNO-B1.0 stars
USNO-B.1_id R2
0829-0078223 15.70
0829-0078147 14.56
0829-0078167 17.71
0829-0078222 18.96
0829-0078226 18.69
0829-0078129 17.62
-
TITLE: GCN CIRCULAR
NUMBER: 19065
SUBJECT: GRB 160223B: Khureltogot optical observations
DATE: 16/02/24 01:31:17 GMT
FROM: Alexei Pozanenko at IKI, Moscow
E. Mazaeva (IKI), S. Schmalz (ISON), A. Volnova (IKI), N. Tungalag
(Research Center of Astronomy and Geophysics MAS), I. Molotov (KIAM),
A. Pozanenko (IKI) report on behalf of larger GRB follow-up collaboration:
We observed the field of INTEGRAL and Fermi GRB 160223B GRB 160223B (Gotz et
al. GCN 19059; von Kienlin et al., GCN 19061) with ORI-40 telescope of
Khureltogot observatory starting on Feb., 23 (UT) 12:34:31. Within 2.2
arcmin error circle of the GRB 160223B localization (Gotz et al., GCN
19059) we marginally detect two possible sources not presented in USNO-B1.0
catalog. Coordinates of the sources are
Source (1): (J2000) 6:20:05.53 +33:24:58.7
Source (2): (J2000) 6:20:03.89 +33:23:14.2
with uncertainties of 1 arcsec in both coordinates.
At this time we cannot confirm the sources are real or variable due to low
S/N and absence of a full dataset.
Preliminary photometry of the sources is following
Date UT start t-T0 Filter Exp. OT Err UL(3sigma) Source#
(mid, days) (s)
2016-02-23 12:34:31 0.14969 none 7200 18.7 0.35 18.9 (1)
2016-02-23 12:34:31 0.14969 none 7200 18.7 0.30 18.9 (2)
Photometry is based on nearby USNO-B1.0 stars, R2 magnitudes:
USNO-B1_id R2
1234-0146334 14.41
1234-0146221 14.55
1233-0156534 14.77
1234-0146470 13.48
1234-0146172 13.37
-
TITLE: GCN CIRCULAR
NUMBER: 19078
SUBJECT: GRB 160225A: TSHAO optical upper limit
DATE: 16/02/25 17:37:58 GMT
FROM: Alexei Pozanenko at IKI, Moscow
E. Mazaeva (IKI), A. Kusakin (Fesenkov Astrophysical Institute), I.
Reva (Fesenkov Astrophysical Institute), A. Volnova (IKI), A. Pozanenko
(IKI) report on behalf of larger GRB follow-up collaboration:
We observed the Swift GRB 160225A (Siegel et al., GCN 19075) with
Zeiss-1000 (West) 1-m telescope of Tien Shan Astronomical Observatory.
We obtained several images in R filter starting on Feb. 25 (UT)
14:46:05. In the first images we do not detect any optical source within
enhanced Swift-XRT position (Goad et al., GCN 19077). Preliminary
photometry of one of single 90 s image is following
Date UT start t-T0 Filter Exp. UL (3sigma)
(mid, days) (s)
2016-02-25 14:47:35 0.01903 R 1*90 18.90
-
TITLE: GCN CIRCULAR
NUMBER: 19072
SUBJECT: GRB 160223A: AbAO optical observations
DATE: 16/02/24 20:22:47 GMT
FROM: Alexei Pozanenko at IKI, Moscow
E. Mazaeva (IKI), R. Inasaridze (AbAO), V. Ayvazian (AbAO), A. Volnova
(IKI), I. Molotov (KIAM), A. Pozanenko (IKI) report on behalf of larger
GRB follow-up collaboration:
We observed the field of Swift and Fermi GRB 160223A (Markwardt et
al., GCN 19057; Veres et al., GCN 19064) with AS-32 (0.7m) telescope of
Abastumani Observatory starting on Feb. 23 (UT) 23:51:22. We obtained
several unfiltered images of the field. We do not detect afterglow
candidate (Bolmer et al., GCN 19058) down to 20.4m. A preliminary
photometry of the field is following
Date UT start t-T0 Filter Exp. UL (3 sigma)
(mid, days) (s)
2016-02-23 23:51:22 0.96907 none 21*120 20.4
photometry is based on nearby stars of SDSS DR9 catalog, Lupton
transformation into R.
-
TITLE: GCN CIRCULAR
NUMBER: 19102
SUBJECT: GRB 160225A: TSHAO optical afterglow detection
DATE: 16/02/27 21:44:21 GMT
FROM: Alexei Pozanenko at IKI, Moscow
E. Mazaeva (IKI), A. Kusakin (Fesenkov Astrophysical Institute), I. Reva
(Fesenkov Astrophysical Institute), A. Volnova (IKI), A. Pozanenko (IKI)
report on behalf of larger GRB follow-up collaboration:
We observed the Swift GRB 160225A (Siegel et al., GCN 19075) with
Zeiss-1000 (West, East) 1-m telescopes of Tien Shan Astronomical
Observatory. We obtained several images in R filter starting on Feb. 25
(UT) 14:45:56. In the first images we do not detect any optical source
(Mazaeva et al., GCN 19078). In combine images we detect afterglow
(Yoshiiet al., GCN 19080; Kuroda al., GCN 19081; Wiersema al., GCN
19082). Preliminary photometry of combined images is following
Date UT start t-T0 Filter Exp. OT Err. UL
(mid, days) (s)
*2016-02-25 14:45:56 0.07022 R 87*90 20.75 0.16 21.4
2016-02-25 15:30:59 0.09576 R 77*90 21.36 0.20 21.9
2016-02-25 17:58:10 0.18146 R 52*90 n/d n/a 21.7
*) Zeiss-1000 West telescope observations
Photometry is based on SDSS-DR9 nearby stars
SDSS-DR9_id R(Lupton)
J105614.20+533500.1 15.35
J105714.63+533304.9 14.36
J105658.91+533304.1 15.77
-
TITLE: GCN CIRCULAR
NUMBER: 19127
SUBJECT: GRB 160303A: ISON-NM early optical early limits
DATE: 16/03/03 12:10:37 GMT
FROM: Alexei Pozanenko at IKI, Moscow
L. Elenin (KIAM), E. Mazaeva (IKI), A. Volnova (IKI), I. Molotov
(KIAM), A. Pozanenko (IKI) report on behalf of larger GRB follow-up
collaboration:
We observed the field of the Swift GRB 160303A (Beardmore et al., GCN
19126) with 0.4-m telescope of ISON-NM observatory starting on Mar., 03
(UT) 10:56:02, i.e. ~80 seconds after burst trigger. We obtained 30
unfiltered images of 30 s exposure. We do not detect any source within
XRT error circle (Beardmore et al., GCN 19126) both in the first image
and in a combined image:
UT start t-T0 Exp. Filter UL (3sigma)
(mid.,days) (s)
10:56:02 0.00110 1*30 Clear 19.8
10:56:02 0.00971 30*30 Clear 21.7
The photometry is based on nearby USNO-B1.0 stars
-
TITLE: GCN CIRCULAR
NUMBER: 19219
SUBJECT: GRB 160321A: AbAO optical observations
DATE: 16/03/22 20:25:03 GMT
FROM: Alexei Pozanenko at IKI, Moscow
E. Mazaeva (IKI), A. Volnova (IKI), R. Inasaridze (AbAO), V. Ayvazian (AbAO), I. Molotov (KIAM), A. Pozanenko (IKI) report on behalf of larger GRB follow-up collaboration:
We observed the field of Swift GRB 160321A (Stamatikos et al., GCN
19211) with AS-32 (0.7m) telescope of Abastumani Observatory starting on
Mar. 21 (UT) 16:26:45. We obtained several unfiltered images of the
field. We do not detect any source within enhanced XRT error circle
(Beardmore et al., GCN 19213) down to 21.9m. A probable source (S/N = 2)
detected 3.5 arcsec South from the center of XRT error circle (Beardmore
et al., GCN 19213) in coordinates (J2000) 06:37:40.74 +05:44:48.2 +/-
0.5 arcsec in both coordinates.
Preliminary photometry of the field is following
Date UT start t-T0 Filter Exp. UL (3 sigma)
(mid, days) (s)
2016-03-21 16:26:45 0.06839 none 41*120 21.9
Photometry is based on nearby USNO-B1.0 stars
USNO-B1_id R2
0956-0104166 16.23
0957-0105913 15.38
0957-0106394 14.58
0956-0104566 15.41
-
TITLE: GCN CIRCULAR
NUMBER: 19435
SUBJECT: SGR 1935+2154: AbAO optical upper limit
DATE: 16/05/18 19:43:53 GMT
FROM: Alexei Pozanenko at IKI, Moscow
E. Mazaeva (IKI), A. Volnova (IKI), R. Inasaridze (AbAO), V. Ayvazian
(AbAO), I. Molotov (KIAM), A. Pozanenko (IKI) report on behalf of larger
GRB follow-up collaboration:
We observed the field of SGR 1935+2154 triggered by Swift (Barthelmy et
al., GCN 19430; D'Avanzo et al., GCN 19433) and Fermi (Yu et al., GCN
19434) with AS-32 (0.7m) telescope of Abastumani Observatory starting
on May 16 (UT) 23:26:26. We obtained several unfiltered images of the
field. We do not detect any source within XRT error circle (D'Avanzo et
al., GCN 19433).
Preliminary photometry of the field is following
Date UT start t-T0 Filter Exp. UL (3 sigma)
(mid, days) (s)
(after GCN 19430 trig.)
2016-05-16 23:26:26 0.14112 none 29*60 20.4
We also note a variable star in the field in coordinates (J2000)
19:34:30.09 +21:52:06.2 and R=15.33 +/- 0.04 which coincides with a star
of USNO-B1.0 1118-0440363, R2 = 19.38. The star is not related to the
SGR 1935+2154.
Photometry is based on nearby USNO-B1.0 stars
USNO-B1.0_id R2
1119-0448829 14.61
1119-0448214 16.24
1118-0440633 14.34
1118-0440733 14.93
A finding chart can be found at
http://grb.rssi.ru/SGR1935+2154/SGR1935+2154_20160516_AbAO.png
-
TITLE: GCN CIRCULAR
NUMBER: 19469
SUBJECT: GRB 160525B: Khureltogot optical upper limit
DATE: 16/05/26 18:06:16 GMT
FROM: Alexei Pozanenko at IKI, Moscow
E. Mazaeva (IKI), S. Schmalz (ISON), A. Volnova (IKI), N. Tungalag
(Research Center of Astronomy and Geophysics MAS), I. Molotov (KIAM),
A. Pozanenko (IKI) report on behalf of larger GRB follow-up collaboration:
We observed the field of the GRB 160525B (Krimm et al., GCN 19459) with
ORI-40 telescope of Khureltogot observatory starting on May, 25 (UT)
15:51:26. We do not detect any source within enhanced Swift-XRT
position (Beardmore et al., GCN 19463). Preliminary photometry of the
combined image is following
Date UT start t-T0 Filter Exp. UpperLimit (3 sigma)
(mid, days) (s)
2016-05-25 15:51:26 0.29070 clear 60*60 21.0
Photometry is based on nearby SDSS-DR9 stars, Lupton transformations into R:
SDSS-DR9_id R(Lupton)
J095742.79+511301.4 16.17
J095737.78+511402.4 16.43
J095736.76+511019.5 14.87
J095730.61+510914.1 17.74
J095737.35+510856.0 15.01
-
TITLE: GCN CIRCULAR
NUMBER: 19574
SUBJECT: GRB 160623A: TSHAO optical observations
DATE: 16/06/25 10:07:47 GMT
FROM: Alexei Pozanenko at IKI, Moscow
E. Mazaeva (IKI), A. Kusakin (Fesenkov Astrophysical Institute), I. Reva
(Fesenkov Astrophysical Institute), A. Volnova (IKI), A. Pozanenko (IKI)
report on behalf of larger GRB follow-up collaboration:
We observed GRB 160623A (Vianello et al., GCN 19553; Mailyan et al.,
GCN 19555; Frederiks et al., GCN 19554) with Zeiss-1000 (East) 1-m
telescopes of Tien Shan Astronomical Observatory. We obtained several
images in R filter starting on June 24 (UT) 19:19:17. We detect optical
transient associated with GRB 160623A (Pozanenko et al., GCN 19561;
Butler et al., GCN 19567). Preliminary photometry of combined image
is following
Date UT start t-T0 Filter Exp. OT Err. UL
(mid, days) (s)
2016-06-24 19:19:17 1.62157 R 40*90 20.57 0.10 22.0
Photometry is based on nearby USNO-B1.0 star
USNO-B.1_id R2
1322-0479881 15.12
1322-0479687 15.57
1322-0479855 15.22
1322-0479927 17.43
1322-0479987 17.39
-
TITLE: GCN CIRCULAR
NUMBER: 19620
SUBJECT: GRB 160625B: TSHAO optical observations, correction GCN 19619
DATE: 16/06/29 15:45:03 GMT
FROM: Alexei Pozanenko at IKI, Moscow
A. Pozanenko (IKI) report on behalf of larger GRB follow-up collaboration:
Corrected text of the GCN 19619 (Mazaeva et al.) should be as follows.
E. Mazaeva (IKI), A. Kusakin (Fesenkov Astrophysical Institute), P.
Minaev (IKI), I. Reva (Fesenkov Astrophysical Institute), A. Volnova
(IKI), A. Pozanenko (IKI) report on behalf of larger GRB follow-up
collaboration:
We observed the field of GRB 160625B (Dirirsa et al., GCN 19580; Burns
et al. GCN 19581) with Zeiss-1000 (East) 1-m telescopes of Tien Shan
Astronomical Observatory. We obtained several images in R filter
starting on June 28 (UT) 18:12:30. We detect optical afterglow of GRB
160625B (Troja et al., GCN 19588; Oates et al., GCN 19589).
Preliminary photometry of a combined image is following
Date UT start t-T0 Filter Exp. OT Err. UL
(mid, days) (s)
2016-06-28 18:12:30 2.86135 R 63*120 20.32 0.06 22.7
Photometry is based on nearby USNO-B1.0 stars reported in GCN 19605
(Mazaeva et. al).
-
TITLE: GCN CIRCULAR
NUMBER: 19646
SUBJECT: GRB 160629A: AbAO optical observations
DATE: 16/07/03 15:12:57 GMT
FROM: Alexei Pozanenko at IKI, Moscow
E. Mazaeva (IKI), A. Pozanenko (IKI), A. Volnova (IKI), R. Inasaridze
(AbAO), V. Ayvazian (AbAO), V. Zhuzhunadze, (AbAO), O.Kvaratskhelia
(AbAO), G. Inasaridze (AbAO), I. Molotov (KIAM), report on behalf of larger
GRB follow-up collaboration:
We observed the field of the INTEGRAL GRB 160629A (Gotz et al., GCN 19621)
with AS-32 (0.7m) telescope of Abastumani Observatory on June, 01 (UT)
19:07:28. We obtained several unfiltered images of the field. Within XRT
error circle (D'Ai et al., GCN 19641) we detected optical afterglow (Klotz
et al., GCN 19622; Sokolov et al., GCN 19623) on July 1, and obtained upper
limit on June 30. Preliminary photometry of the optical afterglow is
following
Date UT start t-T0 Filter Exp. OT UpLim
(3 sigma)
(mid, days) (s)
2016-06-30 18:23:01 0.86572 CR 37*60 n/d 21.4
2016-07-01 19:34:47 1.93748 CR 36*120 22.2+/-0.2 23.0
Photometry is based on nearby USNO-B1.0 stars
USNO-B.1_id R2
1669-0002297 15.53
1669-0002325 15.34
1669-0002281 15.48
1669-0002346 16.43
1669-0002192 15.78
-
TITLE: GCN CIRCULAR
NUMBER: 19669
SUBJECT: GRB 160629A: AbAO optical observations
DATE: 16/07/09 10:22:08 GMT
FROM: Alexei Pozanenko at IKI, Moscow
E. Mazaeva (IKI), A. Pozanenko (IKI), A. Volnova (IKI), R. Inasaridze
(AbAO), V. Ayvazian (AbAO), V. Zhuzhunadze, (AbAO), O.Kvaratskhelia
(AbAO), G. Inasaridze (AbAO), I. Molotov (KIAM), report on behalf of
larger GRB follow-up collaboration:
We observed the field of the INTEGRAL GRB 160629A (Gotz et al., GCN
19621) with AS-32 (0.7m) telescope of Abastumani Observatory on July,
03 (UT) 19:07:28. We obtained several unfiltered images of the field.
Within XRT error circle (D'Ai et al., GCN 19641) we do not detected
optical afterglow (Klotz et al., GCN 19622; Sokolov et al., GCN 19623).
Preliminary photometry of the field is following
Date UT start t-T0 Filter Exp. OT UpLim (3 sigma)
(mid, days) (s)
2016-07-03 20:59:10 3.98204 CR 36*120 n/d 23.4
Photometry is based on nearby USNO-B1.0 stars
USNO-B.1_id R2
1669-0002297 15.53
1669-0002325 15.34
1669-0002281 15.48
1669-0002346 16.43
1669-0002192 15.78
-
TITLE: GCN CIRCULAR
NUMBER: 19680
SUBJECT: GRB 160625B: TSHAO optical observations
DATE: 16/07/11 12:56:47 GMT
FROM: Alexei Pozanenko at IKI, Moscow
E. Mazaeva (IKI), A. Kusakin (Fesenkov Astrophysical Institute), P.
Minaev (IKI), I. Reva (Fesenkov Astrophysical Institute), A. Volnova
(IKI), A. Pozanenko (IKI) report on behalf of larger GRB follow-up
collaboration:
We observed the field of GRB 160625B (Dirirsa et al., GCN 19580; Burns
et al. GCN 19581) with Zeiss-1000 (East) 1-m telescopes of Tien Shan
Astronomical Observatory. We obtained several images in R filter on July
8 and 10. We detect optical afterglow of GRB 160625B (Troja et al., GCN
19588; Oates et al., GCN 19589). Preliminary photometry of a combined
image is following
Date UT start t-T0 Filter Exp. OT Err. UL
(mid, days) (s)
2016-07-08 19:01:43 12.9172 R 30*300 21.60 0.15 22.7
2016-07-10 18:19:18 14.8713 R 29*300 21.64 0.08 23.3
Photometry is based on nearby USNO-B1.0 stars reported in GCN 19605
(Mazaeva et. al).
-
TITLE: GCN CIRCULAR
NUMBER: 19757
SUBJECT: GRB 160801A: TSHAO optical observations
DATE: 16/08/02 22:45:50 GMT
FROM: Alexei Pozanenko at IKI, Moscow
E. Mazaeva (IKI), A. Kusakin (Fesenkov Astrophysical Institute), I. Reva
(Fesenkov Astrophysical Institute), A. Pozanenko (IKI) report on behalf of
larger GRB follow-up collaboration:
We observed the field of GRB 160801A (D'Elia et al., GCN 19744 ) with
Zeiss-1000 (East) 1-m telescope of Tien Shan Astronomical Observatory. We
obtained several images in R filter starting on August 01 (UT) 15:10:55. We
do not detect any optical source within enhanced XRT error position (Goad
et al., GCN 19746). Preliminary photometry of a combined image is following
Date UT start t-T0 Filter Exp. OT Err. UL
(mid, days) (s)
2016-08-01 15:10:55 0.28422 R 60*120 n/d n/d 22.4
Photometry is based on nearby SDSS DR9 stars
SDSS-DR9_id R(Lupton)
J141100.70+132838.3 17.993
J141057.03+132833.7 17.684
J141054.86+132751.0 18.338
J141055.05+132937.2 18.545
J141059.52+133105.4 19.518
J141102.35+133019.9 18.384
J141102.64+133004.5 18.354
Our preliminary photometry of the SDSS object (Cano et al., GCN 19753)
which is also mentioned by Moskvitin et al. (GCN 19755) is R=21.1+/-0.1 and
based on the same nearby SDSS stars.
A finding chart can be found in
http://grb.rssi.ru/GRB160801A/GRB160801A_TSHAO_160801_2.png
-
TITLE: GCN CIRCULAR
NUMBER: 19776
SUBJECT: GRB 160804A: TSHAO optical observations
DATE: 16/08/05 15:44:31 GMT
FROM: Alexei Pozanenko at IKI, Moscow
E. Mazaeva (IKI), A. Kusakin (Fesenkov Astrophysical Institute), I. Reva
(Fesenkov Astrophysical Institute), A. Volnova (IKI), A. Pozanenko (IKI)
report on behalf of larger GRB follow-up collaboration:
We observed the field of GRB 160804A (Marshall et al., GCN 19761) with
Zeiss-1000 (East) 1-m telescope of Tien Shan Astronomical Observatory.
We obtained several images in R filter starting on August 04 (UT)
15:08:18. We clearly detected optical source reported by Breeveld et
al. (GCN 19764), Tyurina et al. (GCN 19768), Malesani et al. (GCN
19770), Moskvitin et al. (GCN 19771), Xu et al. (GCN #19773) and Bolmer
et al. (GCN 19774). Preliminary photometry of a combined image is following
Date UT start t-T0 Filter Exp. OT Err. UL
(mid, days) (s)
2016-08-04 15:08:18 0.58601 R 26*120 20.30 0.10 21.4
Photometry is based on nearby SDSS DR9 stars
SDSS-DR9_id R(Lupton)
J144642.43+100147.7 18.068
J144642.15+100017.4 17.644
J144638.04+095917.6 17.971
J144635.67+095910.6 18.378
J144632.91+100104.9 17.910
J144619.22+095958.1 16.677
J144616.60+100018.4 16.575
J144614.88+100001.4 16.544
-
TITLE: GCN CIRCULAR
NUMBER: 19829
SUBJECT: GRB 160816A: TSHAO optical observations
DATE: 16/08/21 13:37:01 GMT
FROM: Alexei Pozanenko at IKI, Moscow
E. Mazaeva (IKI), I. Reva (Fesenkov Astrophysical Institute), A. Kusakin
(Fesenkov Astrophysical Institute), A. Volnova (IKI), A. Pozanenko
(IKI) report on behalf of larger GRB follow-up collaboration:
We observed the field of 160816A (Racusin et al., GCN 19802; Mailyan et
al., GCN 19804) with Zeiss-1000 (East) 1-m telescope of Tien Shan
Astronomical Observatory. We obtained several images in R filter
starting on August 17 and 18. We detected optical afterglow (Guidorzi
et al. GCN 19808; Troja et al. GCN 19809) on Aug. 17 and obtained upper
limit on Aug. 18. Preliminary photometry of a combined image is following
Date UT start t-T0 Filter Exp. OT Err. UL
(mid, days) (s)
2016-08-17 21:32:28 1.19553 R 105*30 21.70 0.20 21.9
2016-08-18 19:11:47 2.11663 R 148*30 n/d n/d 22.1
Photometry is based on nearby USNO-B1.0 stars
USNO-B1.0_id R2
1271-0576219 17.27
1271-0576200 17.52
1271-0576190 18.12
1271-0576101 17.00
-
TITLE: GCN CIRCULAR
NUMBER: 19862
SUBJECT: GRB 160824A: ISON/Terskol optical observations
DATE: 16/08/25 18:20:16 GMT
FROM: Alexei Pozanenko at IKI, Moscow
E. Mazaeva (IKI), A. Mokhnatkin (KIAM), A. Volnova (IKI), Molotov (KIAM),
A. Pozanenko (IKI) report on behalf of larger GRB follow-up collaboration
We observed the field of GRB 160824A (Evans et al., GCN 19855) with K-800
(0.8m f/2.9) telescope of ISON/Terskol observatory. We obtained several
unfiltered images starting on August 24 (UT) 23:58:36. We detected
optical source in coordinates
(J2000) 05:20:21.18 +40:01:43.5 with uncertainty of 1 arcsec in both
coordinates. This is 2.6 arcsec apart of the center of the enhanced XRT
error circle (Goad et al., GCN 19857). At this time we cannot say nothing
about variability of the object. It is not clear whether our source is the
same as the source reported by Marshall et al. (GCN 19860). Preliminary
photometry of a combined image is following
Date UT start t-T0 Filter Exp. OT Err. UL
(mid, days) (s)
2016-08-24 23:58:36 0.02758 CR 400 20.6 0.3 20.9
Photometry is based on nearby USNO-B1.0 stars
USNO-B1.0_id R2
1300-0122742 18.17
1300-0122665 18.04
1300-0122653 18.66
1300-0122680 17.00
1300-0122864 17.60
1299-0128308 18.00
1300-0122784 17.56
-
TITLE: GCN CIRCULAR
NUMBER: 19980
SUBJECT: GRB 161004A: TSHAO optical observations
DATE: 16/10/04 17:44:41 GMT
FROM: Alexei Pozanenko at IKI, Moscow
E. Mazaeva (IKI), I. Reva (Fesenkov Astrophysical Institute), A. Kusakin
(Fesenkov Astrophysical Institute), A. Volnova (IKI), A. Pozanenko
(IKI) report on behalf of larger GRB follow-up collaboration:
We observed the field of GRB 161004A (Evans et al., GCN 19979) with
Zeiss-1000 (East) 1-m telescope of Tien Shan Astronomical Observatory.
We obtained several images in R filter starting on Oct. 04 (UT)
13:36:52. In the XRT error circle we do not detect any new object. Wa
do not detect also candidate afterglow (Evans et al., GCN 19979).
Preliminary photometry of a combined image is following
Date UT start t-T0 Filter Exp. OT Err. UL
(mid, days) (s)
2016-10-04 13:36:52 0.04321 R 15*180 n/d n/d 21.9
Photometry is based on nearby SDSS-DR9 stars (Lupton transformations):
SDSS-DR9_id R(Lupton)
J173243.09-005731.3 17.04
J173250.91-005842.7 16.77
J173251.94-005803.2 15.75
J173253.88-005801.6 15.62
J173253.02-005938.3 16.02
J173232.00-005640.3 16.34
J173227.11-005646.8 16.41
J173227.04-005816.8 16.51
J173227.48-005856.9 16.62
J173236.27-010018.1 16.96
J173241.54-005823.1 16.26
A finding chart can be found at
http://grb.rssi.ru/GRB161004A/GRB161004A_TSHAO_161004_XRT_UVOT.png
-
TITLE: GCN CIRCULAR
NUMBER: 20011
SUBJECT: GRB 161004A: refined analysis of TSHAO optical observations
DATE: 16/10/07 23:58:37 GMT
FROM: Alexei Pozanenko at IKI, Moscow <apozanen@iki.rssi.ru>
E. Mazaeva (IKI), I. Reva (Fesenkov Astrophysical Institute), A. Kusakin
(Fesenkov Astrophysical Institute), A. Volnova (IKI), A. Pozanenko
(IKI) report on behalf of larger GRB follow-up collaboration:
We present a refined analysis of our observations (Mazaeva et al., GCN
19980) of the field of GRB 161004A (Evans et al., GCN 19979) with
Zeiss-1000 (East) 1-m telescope of Tien Shan Astronomical Observatory.
We obtained several images in R filter starting on Oct. 04 (UT)
13:36:52. In a combined image of the first 30 minutes of our
observations we detect the afterglow (Breeveld et al., GCN 19984).
Preliminary photometry of a combined image is following
Date UT start t-T0 Filter Exp. OT Err. UL
(mid, days) (s)
2016-10-04 13:36:52 0.03632 R 9*180 21.65 0.25 21.7
Photometry is based on nearby SDSS-DR9 stars used in GCN 19980.
-
TITLE: GCN CIRCULAR
NUMBER: 20030
SUBJECT: GRB 161011A: TSHAO afterglow candidate
DATE: 16/10/11 22:10:02 GMT
FROM: Alexei Pozanenko at IKI, Moscow
E. Mazaeva (IKI), A. Kusakin (Fesenkov Astrophysical Institute), A.
Volnova (IKI), I. Reva (Fesenkov Astrophysical Institute), A. Pozanenko
(IKI) report on behalf of larger GRB follow-up collaboration:
We observed the field of GRB 161011A (D'Elia et al., GCN 20023) with
Zeiss-1000 (East) 1-m telescope of Tien Shan Astronomical Observatory.
We obtained several images in R filter starting on Oct. 11 (UT)
13:13:27. In the enhanced XRT error circle (Osborne al., GCN 20026) we
marginally detect an object which is absent in SDDS-DR9 catalog.
Preliminary photometry of the object which we suggest as an afterglow
candidate is following
Date UT start t-T0 Filter Exp. OT Err. UL
(mid, days) (s)
2016-10-11 13:13:27 0.32098 R 21*120 20.6 0.3 20.8
Photometry is based on nearby SDSS-DR9 stars (Lupton transformations):
SDSS-DR9_id R
J162253.68+081834.3 15.26
J162242.22+082241.1 14.18
J162312.65+081527.2 14.72
J162302.30+081614.7 14.96
A finding chart can be found at
http://grb.rssi.ru/GRB161011A/GRB161011A_TSHAO_161011_fc.png
-
TITLE: GCN CIRCULAR
NUMBER: 20042
SUBJECT: GRB 161014A: TSHAO optical observations
DATE: 16/10/15 00:07:46 GMT
FROM: Alexei Pozanenko at IKI, Moscow
E. Mazaeva (IKI), A. Kusakin (Fesenkov Astrophysical Institute), I.
Reva (Fesenkov Astrophysical Institute), A. Volnova (IKI), A. Pozanenko
(IKI) report on behalf of larger GRB follow-up collaboration:
We observed the field of GRB 161014A (Racusin et al., GCN 20035) with
Zeiss-1000 (East) 1-m telescope of Tien Shan Astronomical Observatory.
We obtained several images in R filter starting on Oct. 14 (UT)
13:48:35. We detected the afterglow of GRB 161014A (Morita et al., GCN
20036; Guidorzi et al., GCN 20037; Xin et al., GCN 20038). Preliminary
photometry of of combined the first observational set is following
Date UT start t-T0 Filter Exp. OT Err. UL
(mid, days) (s)
2016-10-14 13:48:35 0.07046 R 21*120 19.0 0.10 20.6
Photometry is based on nearby SDSS-DR9 stars (Lupton transformations):
SDSS-DR9_id R(Lupton)
J221053.78+072643.3 14.88
J221018.77+072726.4 14.05
J221023.66+073006.3 15.49
J221024.28+072335.5 15.75
J221050.55+072341.7 17.10
-
TITLE: GCN CIRCULAR
NUMBER: 20160
SUBJECT: GRB 161108A: TSHAO optical observations
DATE: 16/11/09 21:29:59 GMT
FROM: Alexei Pozanenko at IKI, Moscow
E. Mazaeva (IKI), A. Kusakin (Fesenkov Astrophysical Institute), I.
Reva (Fesenkov Astrophysical Institute), A. Volnova (IKI), A. Pozanenko
(IKI) report on behalf of larger GRB follow-up collaboration:
We observed the field of GRB 161108A (Beardmore et al., GCN 20145)
with Zeiss-1000 (East) 1-m telescope of Tien Shan Astronomical
Observatory. We obtained several images in R filter starting on Nov. 08
(UT) 23:06:16. Within enhanced XRT position (Beardmore et al., GCN
20147) we detected a source coinciding with the afterglow of GRB 161014A
(Malesani et al., GCN 20146; Butler et al., GCN 20149). Preliminary
photometry of the source is following
Date UT start t-T0 Filter Exp. OT Err. UL
(mid, days) (s)
2016-11-08 23:06:16 0.83869 R 28*120 21.8 0.20 22.0
Our photometry of the afterglow might be affected by nearby galaxy
mentioned in GCN 20149 (Malesani et al.)
Photometry is based on nearby SDSS-DR9 stars (Lupton transformations):
SDSS-DR9_id R(Lupton)
J120315.88+245217.4 18.37
J120326.17+245228.7 18.71
J120318.05+245356.7 18.52
J120250.21+245354.3 18.35
J120258.81+245024.2 16.90
J120314.67+244944.0 17.06
J120321.43+244829.2 16.79
-
TITLE: GCN CIRCULAR
NUMBER: 20167
SUBJECT: GRB 161108A: continued TSHAO optical observations
DATE: 16/11/10 20:53:57 GMT
FROM: Alexei Pozanenko at IKI, Moscow
E. Mazaeva (IKI), A. Kusakin (Fesenkov Astrophysical Institute), I.
Reva (Fesenkov Astrophysical Institute), A. Volnova (IKI), A. Pozanenko
(IKI) report on behalf of larger GRB follow-up collaboration:
We observed the field of GRB 161108A (Beardmore et al., GCN 20145) with
Zeiss-1000 (East) 1-m telescope of Tien Shan Astronomical Observatory.
We obtained several images in R filter starting on Nov. 09 (UT)
22:52:14. Within enhanced XRT position (Beardmore et al., GCN 20147) we
detected the afterglow of GRB 161014A (Malesani et al., GCN 20146;
Butler et al., GCN 20149). Preliminary photometry of the afterglow is
following
Date UT start t-T0 Filter Exp. OT Err. UL
(mid, days) (s)
2016-11-09 22:52:14 1.83762 R 41*120 22.0 0.24 22.2
The photometry of the afterglow might be affected by nearby galaxy
mentioned in GCN 20149 (Malesani et al.)
Photometry is based on nearby SDSS-DR9 stars (Mazaeva et al., GCN 20160).
-
Сели на точку GRB161113A
-
TITLE: GCN CIRCULAR
NUMBER: 20175
SUBJECT: GRB 161113A: Kuban State University optical upper limit
DATE: 16/11/14 19:08:55 GMT
FROM: Alexei Pozanenko at IKI, Moscow
E. Mazaeva (IKI), A. Ivanov (KubSU), V. Ivanov (KubSU), V. Lysenko
(KubSU), D. Ivanova (KubSU), A. Volnova (IKI), A. Pozanenko (IKI) report
on behalf of larger GRB follow-up collaboration:
We observed the field of GRB 161113A (D'Avanzo, et al., GCN 20172) with
the RC510 telescope (0.51-m f/8) of Kuban State University Astrophysical
Observatory. We obtained several unfiltered images starting on Nov.
14 (UT) 02:02:08. Within enhanced XRT position (Evans et al., GCN 20174)
we do not detect any source. Preliminary photometry of the field is
following
Date UT start t-T0 Filter Exp. OT Err. UL(3 sigma)
(mid, days) (s)
2016-11-14 02:02:08 0.37062 CR 52*30 n/d n/d 18.9
Photometry is based on nearby USNO-B1.0 stars (R2 magnitudes).
-
TITLE: GCN CIRCULAR
NUMBER: 20215
SUBJECT: GRB 161129A: TSHAO optical observations / possible afterglow+host galaxy
DATE: 16/11/29 16:41:01 GMT
FROM: Alexei Pozanenko at IKI, Moscow
E. Mazaeva (IKI), I. Reva (Fesenkov Astrophysical Institute), A. Kusakin
(Fesenkov Astrophysical Institute), A. Volnova (IKI), A. Pozanenko
(IKI) report on behalf of larger GRB follow-up collaboration:
We observed the field of 161129A (Kocevski et al., GCN 20210) with
Zeiss-1000 (East) 1-m telescope of Tien Shan Astronomical Observatory.
We obtained several images in R filter starting on 2016-11-29 (UT)
12:51:12. Within enhanced XRT position (Beardmore et al. GCN 20211) we
detected optical source which is absent in USNO-B1.0 but barely visible
in DSS2 (red). At the moment we can not say anything about the source
variability. The source might be a superposition of the afterglow and a
host galaxy. Preliminary photometry of the source is following
Date UT start t-T0 Filter Exp. OT Err. UL
(mid, days) (s)
2016-11-29 12:51:12 0.25949 R 13*300 20.60 0.06 22.4
Photometry is based on nearby USNO-B1.0 stars
USNO-B1.0_id R2
1221-0612083 17.30
1221-0612140 19.02
-
TITLE: GCN CIRCULAR
NUMBER: 20279
SUBJECT: GRB 161214B: AbAO and ISON/Terskol optical observations
DATE: 16/12/17 07:25:30 GMT
FROM: Alexei Pozanenko at IKI, Moscow
E. Mazaeva (IKI), R. Inasaridze (AbAO), A. Mokhnatkin (KIAM), A. Pozanenko
(IKI), A. Volnova (IKI), V. Ayvazian (AbAO), V. Zhuzhunadze, (AbAO),
O.Kvaratskhelia (AbAO), G. Inasaridze (AbAO), I. Molotov (KIAM) report on
behalf of larger GRB follow-up collaboration:
We observed the field of GRB 161214B (D'Avanzoet al., GCN 20257) with
AS-32 (0.7m) telescope of Abastumani Observatory and with K-800 (0.8m)
telescope of ISON/Terskol observatory on December, 15. We obtained
several unfiltered images in each observatory. The source previously
reported (Malesani et al. GCN 20260; Marshall et al. GCN 20261) is clearly
visible. Preliminary photometry of the source is following
Date UT start t-T0 Filter Exp. OT Err. UL
(mid, days) (s)
2016-12-15 15:31:49 0.97738 CR 85*60 18.79 0.05 22.2 AS-32
2016-12-15 18:07:05 1.06047 CR 142*30 18.76 0.13 21.4 K-800
Photometry is based on R-magnitudes the same stars used in (Mazaeva et al.,
GCN 20275)
-
TITLE: GCN CIRCULAR
NUMBER: 20309
SUBJECT: GRB 161219B: ISON/Terskol optical observations
DATE: 16/12/20 21:25:52 GMT
FROM: Alexei Pozanenko at IKI, Moscow
E. Mazaeva (IKI), A. Mokhnatkin (KIAM), A. Pozanenko (IKI), A.
Volnova (IKI), I. Molotov (KIAM) report on behalf of larger GRB
follow-up collaboration:
We observed the field of GRB 161219B (Swift trigger 727541; D'Ai,
GCN 20296) with K-800 (0.8m) telescope of ISON/Terskol observatory
starting on December, 19 (UT) 18:57:51, i.e. about 9 minutes after GRB
onset. We obtained several unfiltered images of 30 s exposure. The
optical afterglow (D'Ai et al., GCN 20296; Kruehler et al., GCN 20299;
Guidorzi et al., GCN 20300; Martin-Carrillo et al., GCN 20305) is
clearly visible in separate images. Preliminary light curve of the
afterglow can be found in
http://grb.rssi.ru/GRB161219B/GRB161219B_161219_K800.png
Photometry is based on nearby USNO-B1.0 stars
USNO-B.1_id R2
0631-0120570 13.78
0632-0119151 14.86
0632-0119187 14.03
0632-0119198 15.05
0632-0119218 14.66
0631-0120752 14.81
-
TITLE: GCN CIRCULAR
NUMBER: 20340
SUBJECT: GRB 161224A: TSHAO optical observations
DATE: 16/12/26 13:04:31 GMT
FROM: Alexei Pozanenko at IKI, Moscow
E. Mazaeva (IKI), I. Reva (Fesenkov Astrophysical Institute), A.
Kusakin (Fesenkov Astrophysical Institute), A. Volnova (IKI), A.
Pozanenko (IKI) report on behalf of larger GRB follow-up collaboration:
We observed the field of GRB 161224A (Swift trigger=728268,
Cholden-Brownet al., GCN 20333) with Zeiss-1000 (East) 1-m telescope of
Tien Shan Astronomical Observatory. We obtained several images in R
filter starting on Dec. 25 (UT) 00:13:31 and Dec. 25 (UT) 23:45:12. We
do not detect any evident variable source in the BAT ground-calculated
position (Ukwatta al., GCN 20337). Within enhanced XRT position
(Cholden-Brownet al., GCN 20338) we not detected any source. Preliminary
photometry of the field is following
Date UT start t-T0 Filter Exp. OT Err. UL
(mid, days) (s)
2016-12-25 00:13:31 0.10201 R 16*180 n/d n/d 21.1
2016-12-25 23:45:12 1.07646 R 11*180 n/d n/d 20.7
Photometry is based on nearby USNO-B1.0 stars
0719-0341418 17.14
0720-0349085 17.50
0720-0348989 16.94
0719-0341338 15.94
A finding chart can be found in
http://grb.rssi.ru/GRB161224A/GRB161224A_20161225_TSHAO_fc.png
-
TITLE: GCN CIRCULAR
NUMBER: 20442
SUBJECT: GRB 161219B: afterglow and SN2016jca optical observations
DATE: 17/01/12 17:57:30 GMT
FROM: Alexei Pozanenko at IKI, Moscow
A. Volnova (IKI), E. Mazaeva (IKI), R. Inasaridze (AbAO), A. Moskvitin (SAO
RAS), E. Klunko (ISTP), V. Rumyantsev (CrAO), I. Korobtsev (ISTP), V.
Ayvazian (AbAO), O. Kvaratskhelia (AbAO), G. Inasaridze (AbAO), I.
Molotov (KIAM), A. Pozanenko (IKI) report on behalf of larger GRB
follow-up collaboration:
We observed the field of GRB 161219B (Swift trigger 727541; D'Ai,GCN 20296)
with AZT-33IK (Mondy), ZTSh (CrAO), AS-32 (AbAO) and Zeiss-1000 (SAO RAS)
telescopes. We obtained unfiltered images (AbAO) and images in R-filter
(other observatories). The optical source associated with the afterglow
(D'Ai et al., GCN 20296; Kruehler et al., GCN 20299; Guidorzi et al., GCN
20300; Martin-Carrillo et al., GCN 20305) and SN2016jca (de Ugarte Postigo
et al., GCN 20342; Chen et al., GCN 20380) is clearly visible in all our
observations.
Preliminary light curve of the afterglow and SN2016jca can be found at
http://grb.rssi.ru/GRB161219B/GRB161219B_LC.png
Photometry is based on nearby USNO-B1.0 stars (R2) common for all images.
Late time photometry is contaminated by Pan-STARRS galaxy previously
reported by Kruehler et al. (GCN 20299), and also presented in USNO-B1.0.
Apparent maximum brightness of the SN2016jca was observed at about 11 days
after burst onset (R = 19.2 at 2016-12-30 (UT) 20:04:59) and actual SN peak
could be slighter later, between 11 and 14 days after burst.
-
TITLE: GCN CIRCULAR
NUMBER: 20472
SUBJECT: GRB 170112A : AbAO optical observations
DATE: 17/01/16 19:35:42 GMT
FROM: Alexei Pozanenko at IKI, Moscow
E. Mazaeva (IKI), A. Pozanenko (IKI), R. Inasaridze (AbAO), A. Volnova
(IKI), V. Ayvazian (AbAO), O.Kvaratskhelia (AbAO), G. Inasaridze
(AbAO), I. Molotov (KIAM), report on behalf of larger GRB follow-up
collaboration:
We observed the field of short GRB 170112A (Mingo et al., GCN 20436)
with AS-32 (0.7m) telescope of Abastumani Observatory on Jan., 12 (UT)
15:35:30. We obtained several unfiltered images of the field. Within BAT
error circle (Mingo et al., GCN 2043) we found the source which is
absent in USNO-B1.0 at coordinates (J2000) 01:00:49.80 -17:10:17.5 with
uncertainty of 0.9 arcsec in both coordinates.
Finding chart can be found at
http://grb.rssi.ru/GRB170112A/GRB170112A_AAO_170112.png
The source is barely visible in DSS2 (R). Preliminary photometry of
the source is following
Date UT start t-T0 Filter Exp. OT Err UpLim (3 sigma)
(mid, days) (s)
2017-01-12 15:35:30 0.61446 CR 47*60 17.50 0.25 17.7
Photometry is based on nearby USNO-B1.0 stars
USNO-B.1_id R2
0727-0016063 14.46
0728-0016765 15.73
0728-0016759 12.78
0728-0016802 14.33
The source above does not match any source of XRT observation (D'Ai et
al., GCN 20440), see also http://www.swift.ac.uk/ToO_GRBs/00732188/
-
TITLE: GCN CIRCULAR
NUMBER: 20516
SUBJECT: GRB 170121B: AbAO optical observations
DATE: 17/01/24 17:41:03 GMT
FROM: Alexei Pozanenko at IKI, Moscow
E. Mazaeva (IKI), A. Pozanenko (IKI), R. Inasaridze (AbAO), A. Volnova
(IKI), V. Ayvazian (AbAO), O.Kvaratskhelia (AbAO), G. Inasaridze (AbAO),
I. Molotov (KIAM), report on behalf of larger GRB follow-up collaboration:
We observed the field of optical transient reported by Lipunov et al. (GCN
20502) as a possible candidate of the Fermi/GBM GRB 170121B (Hamburg et al.
GCN Circ. 20505) and XRT afterglow candidate reported by Sbarufatti et
al. (GCN 20510) with AS-32 (0.7m) telescope of Abastumani Observatory
starting on Jan., 23 (UT) 16:14:49. We obtained several unfiltered images
of the field. We do not find any source at coordinates of the optical
transient (Lipunov et al., GCN 20502). Within XRT error circle (Sbarufatti
et al., GCN 20510) we find the source which is also presented in DSS2 and
USNO-B1.0 as the star USNO-B1.0 0807-0048671 (magnitudes R1 = 17.94, R2 =
17.07). Preliminary photometry of the source and the field of the optical
transient (Lipunov et al., GCN 20502) is following
Date UT start t-T0 Filter Exp. OT Err UpLim (3 sigma)
(mid, days) (s)
2017-01-23 16:14:49. 2.09866 CR 60*60 17.76 0.07 22.9
Photometry is based on nearby USNO-B1.0 stars (R2 magnitudes)
USNO-B.1_id R2
0807-0048576 16.37
0806-0049543 18.47
0807-0048525 17.28
0807-0048536 17.23
0806-0049637 15.57
0807-0048826 15.71
0807-0048833 15.41
0807-0048816 17.22
-
TITLE: GCN CIRCULAR
NUMBER: 20978
SUBJECT: GRB 170325A: optical observations, possible OT/host detection
DATE: 17/04/04 20:20:06 GMT
FROM: Alexei Pozanenko at IKI, Moscow
E. Mazaeva (IKI), A. Pozanenko (IKI), V. Rumyantsev (CrAO), P. Minaev
(IKI), E. Klunko (ISTP), A. Volnova (IKI), M. Eselevich (ISTP) report
on behalf of larger GRB follow-up collaboration:
Цe followed up the short GRB 170325A (Palmer et al., GCN 20938) with
AZT-33IK telescope of Sayan observatory (Mondy) an ZTSh telescope of
CrAO observatory. The burst was detected by GBM/Fermi (Bissaldi et al.,
GCN 20940) and also detected as 5.5 sigma non-triggered IBAS event of
0.1 s duration of SPI-ACS/INTEGRAL (see
http://grb.rssi.ru/GRB170325A/GRB170325_SPI-ACS.png).
We obtained several images in R-filter on March 26, March 29, and
April 1 and cover all 90% error box of the BAT/Fermi (Palmer et al., GCN
20938). We investigated variability of sources in the BAT/Fermi error
box between the three epochs. One source exhibits marginal fading
between first and second epochs. Preliminary photometry of the source is
following
Date UT start t-T0 Filter Exp. OT Err. UL
(mid, days) (s)
2017-03-26 14:10:51 1.28049 R 3600 21.94 0.15 22.2
2017-03-29 21:00:52 4.56314 R 3240 22.27 0.10 23.6
2017-04-01 15:46:59 7.35072 R 4100 22.45 0.25 22.6
the photometry is based on nearby SDSS-DR9 stars
SDSS-DR9_id R(Lupton transformations)
J082954.53+203317.9 18.69
J083002.05+203031.2 16.74
J082950.18+203013.8 18.25
J082949.90+203106.9 16.65
Coordinates of the source are (J2000) 08:29:57.677 +20:30:51.75 with
uncertainty of 0.7 arcsec in both coordinates. The finding chart can be
found in
http://grb.rssi.ru/GRB170325A/GRB170325A_Mondy_170326_2.png
http://grb.rssi.ru/GRB170325A/GRB170325A_CrAO_170329.png
The source is not presented in SDSS-DR9, but clearly visible in
r(=22.59), i(=22.10) filters, barely visible in u-filter (23.1), and not
detected in g and z of SDSS images.
We suggest the source is an afterglow and host candidates of the short
GRB 170325A.
-
TITLE: GCN CIRCULAR
NUMBER: 20992
SUBJECT: GRB 170405A: ISON/Terskol optical observations
DATE: 17/04/06 12:12:17 GMT
FROM: Alexei Pozanenko at IKI, Moscow
E. Mazaeva (IKI), V. Agletdinov (KIAM), A. Pozanenko (IKI), A. Volnova
(IKI), I. Molotov (KIAM) report on behalf of larger GRB follow-up
collaboration:
We observed the field of GRB 170405A (Troja et al., GCN 20984) with
K-800 (0.8m) telescope of ISON/Terskol observatory starting on
April, 05 (UT) 19:12:55, i.e. 45 minutes after GRB onset. We obtained
several unfiltered images of 15 s exposure. The optical afterglow Troja
et al., GCN 20984; Malesani et al., GCN 20988; Klotz et al., GCN 20989;
Ugarte Postigo et al., GCN 20990; Martin-Carrillo et al., GCN 20991)
is clearly visible in combined images. Preliminary photometry of the
afterglow is following
Date UT start t-T0 Filter Exp. OT Err. UL
(mid, days) (s)
2017-04-05 19:12:55 0.03139 CR 72*15 17.27 0.10 20.1
2017-04-05 19:34:33 0.04300 CR 48*15 17.96 0.13 19.8
2017-04-05 19:49:05 0.06019 CR 110*15 18.39 0.14 20.4
2017-04-05 20:23:55 0.08543 CR 110*15 19.18 0.22 20.2
2017-04-05 21:01:48 0.11099 CR 107*15 n/d n/d 18.9
Photometry is based on nearby USNO-B1.0 stars
USNO-B.1_id R2
0647-0315771 15.13
0647-0315754 15.45
0647-0315872 15.34
0647-0315921 15.08
0647-0315788 14.92
Preliminary light curve of the afterglow can be found in
http://grb.rssi.ru/GRB170405A/GRB170405A_light_curve.png
-
TITLE: GCN CIRCULAR
NUMBER: 21029
SUBJECT: Swift Trigger 748858: AbAO and TSHAO optical observations
DATE: 17/04/21 20:16:17 GMT
FROM: Alexei Pozanenko at IKI, Moscow
E. Mazaeva (IKI), A. Pozanenko (IKI), R. Inasaridze (AbAO), I. Reva
(Fesenkov Astrophysical Institute), A. Kusakin (Fesenkov Astrophysical
Institute), A. Volnova (IKI), V. Ayvazian (AbAO), O. Kvaratskhelia
(AbAO), G. Inasaridze (AbAO), I. Molotov (KIAM), report on behalf of
larger GRB follow-up collaboration:
We observed the field of the SWIFT trigger 748858 (Siegel, et al., GCN
21011) with AS-32 (0.7m) telescope of Abastumani Observatory and with
Zeiss-1000 1-m telescope of Tien Shan Astronomical Observatory. In each
observation we fully cover both BAT error circles, initial (Siegel et
al., GCN 21011) and ground-calculated error circle (Sakamoto et al.,
GCN 21017). Within ground-calculated error circle we do not find any
new source in comparison with SDSS catalog. Within XRT error circle of
the source reported in GCN 21017 (Sakamoto et al.) we find the source
which is already mentioned by (Butler et al., GCN 21026). The source
coincides with the star of J131924.35+153001.6 and has the brightness
of R =19.53 +/- 0.04 according to SDSS DR9 and Lupton gri -> R
transformations.
Limiting magnitudes as well as the brightness of the star
J131924.35+153001.6 for each observation are presented below.
Date UT start t-T0 Filter Exp. XRT Err UpLim (3 sigma)
(mid, days) (s)
2017-04-19 17:03:29 0.39918 CR 33*60 19.35 0.06 22.2
2017-04-19 17:37:14 0.42414 R 21*180 19.47 0.05 22.0
Photometry is based on nearby SDSS DR9 stars (Lupton transformations)
J131940.43+152853.2 15.63
J131934.46+152944.3 15.44
J131930.90+152831.0 16.02
J131927.38+153041.9 16.17
J131911.74+152820.9 15.72
J131859.43+153017.2 16.72
J131859.61+152435.2 16.63
-
TITLE: GCN CIRCULAR
NUMBER: 21145
SUBJECT: GRB 170524A: TSHAO and CrAO optical observations
DATE: 17/05/25 20:28:02 GMT
FROM: Alexei Pozanenko at IKI, Moscow
E. Mazaeva (IKI), S. Nazarov (CrAO), A. Kusakin (Fesenkov Astrophysical
Institute), A. Volnova (IKI), A. Pozanenko (IKI) report on behalf of
larger GRB follow-up collaboration:
We observed the field of the Swift GRB 170524A (trigger=754322) (Gropp
et al., GCN 21135) with Zeiss-1000 (East) of Tien Shan Astronomical
Observatory and AZT-8 telescope of CrAO. We obtained several images in R
filter. The TSHAO observations started on 2017-05-24 (UT) 20:31:45 under
not optimal weather conditions. Observations in CrAO started on
2017-05-25 (UT) 00:18:50. Within enhanced XRT position (Evans et al. GCN
21136) we did not detect any optical source in the first epoch. In the
second epoch (CrAO observation) we detected an object which is on the
edge of the enhanced XRT position. The object has coordinates (J2000)
21:17:56.30 +48:36:27.9 with uncertainties of about 1 arcsec in each
coordinate and brightness of R=20.10 +/- 0.15 at 0.1992 days after the
Swift trigger. For now we can not say anything about the object
variability. However the object is barely visible in DSS2 (Red).
The preliminary results of field photometry are as follows
Date UT start t-T0 Filter Exp. UL(3 sigma)
(mid, days) (s)
2017-05-24 20:31:45 0.06857 R 46*120 20.3
2017-05-25 00:18:50 0.19920 R 10*180 21.5
Photometry is based on nearby USNO-B1.0 stars
USNO-B1.0_id R2
1386-0392957 16.69
1385-0394718 17.29
1386-0392907 17.11
The finding chart of the object can be found at
http://grb.rssi.ru/GRB170524A/GRB170524A_CrAO_170524.png
-
TITLE: GCN CIRCULAR
NUMBER: 21162
SUBJECT: GRB 170519A: ISON/Multa optical observations
DATE: 17/05/29 18:41:18 GMT
FROM: Alexei Pozanenko at IKI, Moscow <apozanen@iki.rssi.ru>
E. Mazaeva (IKI), A. Krylov (KIAM), Yu. Krylova (KIAM), S. Schmalz
(KIAM), A. Volnova (IKI), A. Pozanenko (IKI) report on behalf of larger
GRB follow-up collaboration:
We observed the field of GRB 170519A (Ukwatta et al., GCN 21106) with
22cm SSS-220 telescope of ISON/Multa observatory(* starting on May 19
(UT) 16:02:54. We took 120 unfiltered frames with 60 s exposure. The
optical transient (Ukwatta et al., GCN 21106; Izzo, et al., GCN 21108)
is clearly detected in a combined image.
Preliminary photometry of the combined image is following
Date UT start t-T0 Filter Exp. OT err UL
(mid, days) (s) (3sigma)
2017-05-19 16:02:54 0.53936 CR 120*60 18.92 0.28 19.0
The photometry is based on nearby SDSS stars:
SDSS-DR9_id R(Lupton)
J105316.02+252545.1 16.75
J105332.97+252127.3 16.22
J105336.13+251707.2 15.46
J105322.03+251651.0 15.91
J105339.27+251620.6 16.66
J105338.87+252621.2 16.00
*) The ISON/Multa observatory is located in Altai, N 50d 10′ 07″ E 85d
57′ 25″. The SSS-220 telescope (22 cm, f/2.3) is equipped with CCD
camera ML 11002.
-
TITLE: GCN CIRCULAR
NUMBER: 21174
SUBJECT: GRB 170531B: CrAO confirmation of the afterglow
DATE: 17/06/01 00:11:21 GMT
FROM: Alexei Pozanenko at IKI, Moscow
A. Pozanenko (IKI), D. Chestnov (ISON), A. Novichonok (ISON), A. Mokhnatkin
(ISON) report on behalf of larger GRB follow-up collaboration:
We observed the field of the GRB 170531B (Evans et al.,GCN 21171) with
with Zeiss-1000/Koshka telescope starting on May 31 (UT) 22:32:32, i.e. ~30
minutes after burst onset. We took several images in filter R with
exposures of 180 s. Near the border of XRT error circle (Evans et al.,GCN
21171) we detect the source in coordinates (J2000) 19:07:31.67 -16:25:09.3
with uncertainity of 0.5 arcsec in both coordinates. The source is probably
coincedent with the object reported by (Lipunov et al., GCN 21172). The
source is fading from R=19.1 at (UT) 22:32:32 down to R=19.5 at (UT)
23:30:56. Most probably the source is an afterglow of GRB 170531B.
-
TITLE: GCN CIRCULAR
NUMBER: 21189
SUBJECT: GRB 170531B: ISON/Terskol optical observations
DATE: 17/06/02 15:22:42 GMT
FROM: Alexei Pozanenko at IKI, Moscow
E. Mazaeva (IKI), A. Mokhnatkin (KIAM), A. Pozanenko (IKI), A.
Volnova (IKI), I. Molotov (KIAM) report on behalf of larger GRB
follow-up collaboration:
We observed the field of GRB 170531B (Evans et al.,GCN 21171) with
K-800 (0.8m) telescope of ISON/Terskol observatory starting on May,
31 (UT) 22:21:31. We obtained several unfiltered images of 40 s
exposure. The optical afterglow (Lipunov et al., GCN 21173 Pozanenko et
al. GCN 21174) is clearly visible in combined images. Preliminary
photometry of the afterglow is following
Date UT start t-T0 Filter Exp. OT Err. UL
(mid, days) (s)
2017-05-31 22:21:31 0.01810 CR 18*40 18.90 0.10 21.0
2017-05-31 22:35:41 0.02949 CR 21*40 19.10 0.10 21.0
Photometry is based on nearby USNO-B1.0 stars
USNO-B.1_id R2
0736-0718845 16.77
0735-0729626 17.35
0735-0729622 16.96
0735-0729439 16.59
0735-0729327 17.22
-
TITLE: GCN CIRCULAR
NUMBER: 21208
SUBJECT: GRB 170519A: TShAO and AbAO optical observations
DATE: 17/06/05 19:41:04 GMT
FROM: Alexei Pozanenko at IKI, Moscow
E. Mazaeva (IKI), A. Pozanenko (IKI), A. Kusakin (Fesenkov Astrophysical
Institute), R. Inasaridze (AbAO), I. Reva (Fesenkov Astrophysical
Institute), A. Volnova (IKI), V. Ayvazian (AbAO), O. Kvaratskhelia
(AbAO), G. Inasaridze (AbAO), I. Molotov (KIAM) report on behalf of
larger GRB follow-up collaboration:
We observed the field of GRB 170519A (Ukwatta et al., GCN 21106) with
Zeiss-1000 1-m telescope of Tien Shan Astronomical Observatory
starting on May 20 (UT) 18:42:38. We took several images in R-filter
with exposures of 120 s during this night and 2 subsequent nights.
The optical afterglow (Ukwatta et al., GCN 21106; Izzo, et al.,
GCN 21108) is visible in stacked images.
We also observed this field with AS-32 (0.7m) telescope of Abastumani
Observatory on May 21 (UT) 17:22:33. We took several unfiltered frames
with 60 s exposure. In the enhanced XRT error circle (Beardmore et al.,
GCN 21107) we do not detect the afterglow.
Preliminary photometry of the afterglow is following:
Date UT start t-T0 Filter Exp. OT Err. UL Telescope
(mid, days) (s) (3 sigma)
2017-05-20 18:42:38 1.58414 R 24*120 20.06 0.06 21.4 Zeiss-1000
2017-05-21 15:58:25 2.48340 R 39*120 20.95 0.14 21.6 Zeiss-1000
2017-05-22 15:27:05 3.46168 R 39*120 22.20 0.40 21.9 Zeiss-1000
2017-05-21 17:22:33 2.52050 CR 20*60 n/d n/d 20.8 AS-32
The photometry is based on nearby SDSS stars, reported by
Mazaeva et al. (GCN 21169).
The light curve of the GRB 170519A afterglow based on our observations
(GCNs 21162, 21169, 21206) can be found at
http://grb.rssi.ru/GRB170519A/GRB170519A_lc.png
-
TITLE: GCN CIRCULAR
NUMBER: 21203
SUBJECT: GRB 170604A: AbAO optical observations
DATE: 17/06/05 15:48:31 GMT
FROM: Alexei Pozanenko at IKI, Moscow
E. Mazaeva (IKI), R. Inasaridze (AbAO), A. Pozanenko (IKI), A. Volnova
(IKI), V. Ayvazian (AbAO), O. Kvaratskhelia (AbAO), G. Inasaridze
(AbAO), I. Molotov (KIAM), report on behalf of larger GRB follow-up
collaboration:
We observed the field of the Swift GRB 170604A (Page et al., GCN 21191)
with AS-32 (0.7m) telescope of Abastumani Observatory starting on
June, 04 (UT) 23:52:07. We obtained several unfiltered images of the
field. Within enhanced XRT error circle (Page et al., GCN 21196) we
detected the afterglow (Izzo et al, GCN 21192; Izzo et al, GCN 21197;
Schady, , GCN 21200). Preliminary photometry of the afterglow is following
Date UT start t-T0 Filter Exp. OT Err UpLim (3 sigma)
(mid, days) (s)
2017-06-04 23:52:07 0.19950 CR 5*60 19.13 0.18 21.0
2017-06-05 00:00:50 0.20675 CR 7*60 19.23 0.16 21.1
2017-06-05 00:13:02 0.21885 CR 13*60 19.30 0.22 20.6
Photometry is based on nearby USNO-B1.0 stars (R2 magnitudes)
USNO-B.1_id R2
0746-0830331 14.71
0746-0830367 14.76
0746-0830438 15.14
0746-0830455 14.77
0747-0821123 14.60
-
TITLE: GCN CIRCULAR
NUMBER: 21237
SUBJECT: GRB 170607A: ISON/Terskol optical observations
DATE: 17/06/09 18:33:32 GMT
FROM: Alexei Pozanenko at IKI, Moscow
A. Volnova (IKI), A. Pozanenko (IKI), V. Agletdinov (KIAM), E. Mazaeva
(IKI), A. Mokhnatkin (KIAM), I. Molotov (KIAM) report on behalf of
larger GRB follow-up collaboration:
We observed the field of GRB 170607A (D’Ai et al., GCN 21214) with K-800
(0.8m) telescope of ISON/Terskol observatory starting on June, 08
(UT) 23:23:04, about 1 day after the burst onset. We obtained several
unfiltered images of 20 s exposure. The optical afterglow (D’Ai et al.,
GCN 21214; Heintz et al., GCN 21217; Lipunov et al., GCN 21220) is
still bright and clearly visible in a combined image. Preliminary
photometry of the afterglow is following
Date UT start t-T0 Filter Exp. OT Err. UL
(mid, days) (s)
2017-06-08 22:21:31 1.01959 CR 128*20 18.50 0.28 18.90
Photometry is based on nearby SDSS DR9 stars
SDSS id R_Lupton
J002930.50+091415.3 16.314
J002920.28+091527.1 15.963
J002925.73+091637.7 14.803
-
TITLE: GCN CIRCULAR
NUMBER: 21276
SUBJECT: GRB 170626A: TShAO optical observations
DATE: 17/06/27 16:50:15 GMT
FROM: Alexei Pozanenko at IKI
A. Volnova (IKI), A. Pozanenko (IKI), I. Reva (Fesenkov Astrophysical Institute), E. Mazaeva (IKI), A. Kusakin (Fesenkov Astrophysical Institute), report on behalf of larger GRB follow-up collaboration:
We observed the field of the Swift GRB 170626A (Marshall et al., GCN Circ. 21264; Hamburg & Meegan, GCN Circ. 21266) with Zeiss-1000 1-m telescope of Tien Shan Astronomical Observatory starting on May 20 (UT) 18:42:38. We took several images in R-filter with total exposure of 1130 s. The optical afterglow (Moskvitin et al., GCN 21268; de Ugarte Postigo, et al., GCN 21269) is clearly visible in a stacked image.
Preliminary photometry of the afterglow is following:
Date UT start t-T0 Filter Exp. OT Err. UL
(mid, days) (s) (3 sigma)
2016-06-26 16:47:33 0.30832 R 1130 19.87 0.13 21.0
The magnitude is also compatible with a magnitude of the afterglow reported by Lipunov (GCN 21272) after observation at the same epoch.
Taken into account that between our observation at ~7.4 hours (mid time) and TNG observation at 11.53 hours (Melandri et al., GCN 21270) the magnitude of the aftegrlow did not change one may suggest either flare like activity or plateau phase of the afterglow and the burst can interesting for follow up observations.
The finding chart can be found at http://grb.rssi.ru/GRB170626A/GRB170626a-fc_TShAO.png
The photometry is based on nearby SDSS stars, part of them already used in Moskvitin et al. (GCN 21169).
SDSS_id R_Lupton Err
J110107.23 +564104.2 15.987 0.013
J110157.37 +563628.5 15.225 0.013
J110211.15 +563624.1 15.177 0.012
J110206.51 +563744.1 14.808 0.012
J110111.46 +563755.3 15.480 0.012
(GCN 21169)
J110106.88 +563153.7 16.389 0.013
J110125.73 +563134.0 18.332 0.023
J110124.28 +563251.1 17.839 0.017
-
TITLE: GCN CIRCULAR
NUMBER: 21300
SUBJECT: GRB 170705A: ISON/Terskol optical observations
DATE: 17/07/06 13:28:01 GMT
FROM: Alexei Pozanenko at IKI, Moscow
E. Mazaeva (IKI), A. Pozanenko (IKI), V. Agletdinov (KIAM), A. Volnova
(IKI), A. Mokhnatkin (KIAM), I. Molotov (KIAM) report on behalf of
larger GRB follow-up collaboration:
We observed the field of the Swift GRB 170705A (Starling et al. GCN 21289)
which is also detected by GBM/Fermi and Konus-Wind (Bissaldi et al., GCN
21297; Svinkini et al., GCN 21299) with K-800 (0.8m) telescope of
ISON/Terskol observatory starting on July, 05 (UT) 18:30:54. We obtained
several unfiltered images of 20 s exposure. The optical afterglow of GRB
170705A (Starling et al. GCN 21289, Lipunov et al. GCN 21291, Butler et al.
GCN 21293, Emery et al. GCN 21294; Ugarte Postigo et al. GCN 21298) is
clearly visible in a combined image. Preliminary photometry of the
afterglow is following
Date UT start t-T0 Filter Exp. OT Err.
UL
(mid, days) (s)
2017-07-05 18:30:54 0.70649 CR 358*20 19.84 0.08 22.2
Photometry is based on nearby SDSS DR9 stars
SDSS id R_Lupton
J124702.82+181926.7 17.63
J124700.96+181851.9 19.15
J124653.35+182058.9 17.08
J124641.28+182043.7 16.61
J124646.57+181522.1 17.45
J124645.71+181510.4 17.18
J124650.58+182306.3 18.18
J124624.60+181820.0 16.34
J124647.75+181330.6 16.05
J124644.99+181414.3 18.79
-
TITLE: GCN CIRCULAR
NUMBER: 21320
SUBJECT: GRB 170705A: TShAO optical observations
DATE: 17/07/11 17:39:03 GMT
FROM: Alexei Pozanenko at IKI, Moscow
A. Volnova (IKI), E. Mazaeva (IKI), A. Pozanenko (IKI), A. Kusakin
(Fesenkov Astrophysical Institute), I. Reva (Fesenkov Astrophysical
Institute) report on behalf of larger GRB follow-up collaboration:
We observed the field of the Swift GRB 170705A (Starling et al. GCN
21289) which is also detected by GBM/Fermi and Konus-Wind (Bissaldi et
al., GCN 21297; Svinkin et al., GCN 21299) with Zeiss-1000 1-m
telescope of Tien Shan Astronomical Observatory on July 6-8. We took
several images in R-filter. The optical afterglow of GRB 170705A
(Starling et al. GCN 21289, Lipunov et al. GCN 21291, Butler et al. GCN
21293, Emery et al. GCN 21294; Ugarte Postigo et al. GCN 21298) is
visible in a combined image on July 6, and upper limit only for July
7-8. Preliminary photometry of the afterglow is following.
Date UT start t-T0 Filter Exp. OT Err. UL
(mid, days) (s) (3 sigma)
2017-07-06 16:28:29 1.61411 R 38*180 20.67 0.24 21.1
2017-07-07 17:30:55 2.63106 R 13*180 n/d n/d 20.6
2017-07-07 17:30:55 3.10501 R 34*180 n/d n/d 21.1
Photometry is based on nearby SDSS DR9 stars listed in GCN 21300.
-
TITLE: GCN CIRCULAR
NUMBER: 21333
SUBJECT: GRB 170711A: ISON/Terskol and AbAO optical observations
DATE: 17/07/13 18:13:15 GMT
FROM: Alexei Pozanenko at IKI, Moscow
A. Volnova (IKI), A. Pozanenko (IKI), A. Mokhnatkin (KIAM), R.
Inasaridze (AbAO), E. Mazaeva (IKI), V. Agletdinov (KIAM), V. Ayvazian
(AbAO), O. Kvaratskhelia (AbAO), G. Inasaridze (AbAO), I. Molotov (KIAM)
report on behalf of larger GRB follow-up collaboration:
We observed the field of the Swift GRB 170711A (D'Elia et al. GCN 21321)
with K-800 (0.8m) telescope of ISON/Terskol observatory starting on July,
12 (UT) 00:00:39 and AS-32 telescope of AbAO starting on July, 11 (UT)
23:58:46, i.e. about 1.6 hours after GRB trigger. We obtained
several unfiltered images. We do not detect any source in stacked images
within the enhanced XRT position (Beardmore et al. GCN 21323).
Preliminary photometry of the field is following
Date UT start t-T0 Filter Exp. OT Err. UL
Telescope
(mid, days) (s)
2017-07-11 23:58:46 0.07894 CR 11*60 n/d n/d 17.0 AS-32
2017-07-12 00:00:39 0.07658 CR 45*25 n/d n/d 19.1 K-800
Photometry is based on nearby stars of USNO-B1.0
USNO-B1.0_id R2
1378-0084355 14.59
1378-0084262 15.13
1378-0084218 14.70
We detect the object in coordinates (J2000) 03 03 11.46 +47 50 56.1 (+/-
0.5 arcsec) which is 7.7 arcsec apart from a center of the enhanced XRT
position. The object is clearly detected in the stacked image of K-800 and
marginally seen at the same position with AS-32 stacked image. The
brightness of the object is 18.56 +/- 0.25 based on the reference stars
listed above. The object is absent in the USNO-B1.0. At present, it is not
clear whether this object has any relation to the GRB 170711A.
-
TITLE: GCN CIRCULAR
NUMBER: 21419
SUBJECT: GRB 170728B: TShAO, SAO RAS and AbAO optical observations
DATE: 17/08/07 10:23:04 GMT
FROM: Alexei Pozanenko at IKI, Moscow
A. Volnova (IKI), A. Kusakin (Fesenkov Astrophysical Institute), A.S.
Moskvitin (SAO RAS), O.I. Spiridonova (SAO RAS), R. Inasaridze (AbAO), I.
Reva (Fesenkov Astrophysical Institute), E. Mazaeva (IKI), A. Pozanenko
(IKI) report on behalf of larger GRB follow-up collaboration:
We observed the field of the Swift GRB 170728B (Cenko et al., GCN 21371)
with Zeiss-1000 of SAO RAS (July 29, August 4,5 ), AS-32 telescope of AbAO
(July 29) and Zeiss-1000 telescope of Tien Shan Astronomical Observatory
(July 30,31 August 1,6). Below we report the photometry of the optical
afterglow (D'Avanzo et al., GCNs 21372, 21373; Heintz et al., GCN 21374;
Guidorzi et al., GCN 21375) and upper limits of our observations.
Preliminary photometry is following:
Date UT start t-T0 Filter Exp. OT Err. UL Telescope
(mid, days) (s) (3 sigma)
2017-07-29 00:41:51 0.07228 R 600 n/d n/d 18.6 Z-1000 SAO
2017-07-29 17:27:49 0.79594 CR 43*60 n/d n/d 20.4 AS-32 AbAO
2017-07-30 16:12:56 1.79815 R 97*120 21.93 0.25 22.1 Z-1000 TSHAO
2017-08-01 15:12:51 3.72304 R 60*120 n/d n/d 21.6 Z-1000 TSHAO
2017-08-04 00:41:51 5.98081 R 41*300 22.6 0.23 22.8 Z-1000 SAO
The photometry is based on nearby USNO-B1.0 stars
1601-0108291 15:52:31.54 +70:09:31.7 R2 17.95
1601-0108289 15:52:28.99 +70:09:26.3 R2 18.08
1601-0108260 15:51:57.87 +70:09:53.8 R2 16.87
1601-0108254 15:51:50.88 +70:08:41.2 R2 15.04
1601-0108262 15:52:03.24 +70:07:32.0 R2 16.01
Coordinates of the afterglow obtained from observation on July 30 are
(J2000)
15 51 55.5179 +70 07 21.123 with uncertainties on both coordinates of 0.2
arces which is compatible with coordinates of TNG (D'Avanzo et al., GCN
21373) and VLA (Fong et al., GCN 21395). The finding chart can be found in
http://grb.rssi.ru/GRB170728B/GRB170728B_TShAO_R_170730.png
The light curve of the afterglow based on observations above and photometry
reported in GCNs (Dintinjana et al., GCN 21394; Watson GCN 21389; D'Avanzo
et al., GCN 21372; Heintz et al., GCN 21374; Guidorzi et al., GCN 21375)
can be found in
http://grb.rssi.ru/GRB170728B/GRB170728B_lc+GCNs_v2.png
Based on our observation on July, 30 (~ 1.8 days after burst onset) one can
suggest that the OT experienced rebrightening at that epoch.
-
TITLE: GCN CIRCULAR
NUMBER: 21471
SUBJECT: GRB 170810A: AbAO optical upper limit
DATE: 17/08/13 19:29:38 GMT
FROM: Alexei Pozanenko at IKI, Moscow
A. Volnova (IKI), A. Pozanenko (IKI), R. Inasaridze (AbAO), V. Ayvazian
(AbAO), O. Kvaratskhelia (AbAO), G. Inasaridze (AbAO), E. Mazaeva (IKI),
I. Molotov (KIAM) report on behalf of larger GRB follow-up collaboration:
We observed the field of the Swift GRB 170810A (Gibson et al., GCN 21450)
with AS-32 (0.7m) telescope of Abastumani Observatory starting on August, 11
(UT) 17:02:09. We obtained several unfiltered images of the field. Within
enhanced XRT error circle (Goad et al., GCN 21451) we do not detect the
afterglow (Rebolo et al, GCN 21449; Gibson et al., GCN 21450). Preliminary
photometry of the field is following
Date UT start t-T0 Filter Exp. OT Err UpLim (3
sigma)
(mid, days) (s)
2017-08-11 17:02:09 0.80915 CR 33*20 n/d n/d 18.2
Photometry is based on nearby SDSS stars (Lupton transformation)
SDSS id R_Lupton
J123141.98+033552.6 15.637 0.013
J123153.09+033552.7 14.800 0.012
J123154.00+033945.4 15.540 0.013
-
TITLE: GCN CIRCULAR
NUMBER: 21654
SUBJECT: GRB 170822A: AbAO optical upper limit
DATE: 17/08/23 13:14:20 GMT
FROM: Alexei Pozanenko at IKI, Moscow
E. Mazaeva (IKI), R. Inasaridze (AbAO), A. Pozanenko (IKI), A.
Volnova (IKI), V. Ayvazian (AbAO), O. Kvaratskhelia (AbAO), G.
Inasaridze (AbAO), I. Molotov (KIAM) report on behalf of larger GRB
follow-up collaboration:
We observed the field of the Swift GRB 170822A (Melandri et al.,
GCN 21640)) with AS-32 (0.7m) telescope of Abastumani Observatory
starting on August, 22 (UT) 22:43:12. We obtained several unfiltered
images of the field. Within enhanced XRT error circle (Beardmore et
al., GCN 21643) we do not detect the afterglow candidate (Tello et
al, GCN 21642). Preliminary photometry of the field is following
Date UT start t-T0 Filter Exp. OT Err UpLim (3 sigma)
(mid, days) (s)
2017-08-22 22:43:12 0.58255 CR 32*60 n/d n/d 22.2
Photometry is based on nearby USNO-B1.0 stars R2 magnitudes
USNO-B.1_id R2
1450-0165651 15.44
1450-0165657 15.54
1450-0165669 16.19
1450-0165558 16.58
1450-0165549 15.60
1450-0165573 15.28
1449-0164981 16.05
A finding chart can be found at
http://grb.rssi.ru/GRB170822A/GRB170822A_AAO_170822+Bootes-OT.png
-
TITLE: GCN CIRCULAR
NUMBER: 22092
SUBJECT: GRB 171102B: TShAO optical upper limit
DATE: 17/11/03 20:49:21 GMT
FROM: Alexei Pozanenko at IKI, Moscow
E. Mazaeva (IKI), A. Kusakin (Fesenkov Astrophysical Institute), A.
Pozanenko (IKI), I. Reva (Fesenkov Astrophysical Institute), A.
Volnova (IKI) report on behalf of larger GRB follow-up collaboration:
We observed the field of the Swift GRB 170822A (Ukwatta et al.,
GCN 22082) with Zeiss-1000 1-m telescope of Tien Shan Astronomical
Observatory starting on Nov., 02 (UT) 15:47:45. We took several images
in R-filter. Within enhanced XRT error circle (Osborne et al., GCN
22084) we do not detect any object. Preliminary photometry of the
afterglow is following.
Date UT start t-T0 Filter Exp. OT Err. UL
(mid, days) (s) (3 sigma)
2017-11-02 15:47:45 0.04377 R 30*120 n/d n/d 20.1
Photometry is based on nearby USNO-B1.0 stars R2 magnitudes
USNO-B.1_id R2
1124-0422739 16.70
1124-0422527 16.20
1124-0422440 15.76
-
TITLE: GCN CIRCULAR
NUMBER: 22093
SUBJECT: GRB 171102B: AbAO optical upper limit
DATE: 17/11/03 20:51:02 GMT
FROM: Alexei Pozanenko at IKI, Moscow
E. Mazaeva (IKI), R. Inasaridze (AbAO), A. Pozanenko (IKI), A.
Volnova (IKI), V. Ayvazian (AbAO), O. Kvaratskhelia (AbAO), G.
Inasaridze (AbAO), I. Molotov (KIAM) report on behalf of larger GRB
follow-up collaboration:
We observed the field of the Swift GRB 170822A (Ukwatta et al.,
GCN 22082) with AS-32 (0.7m) telescope of Abastumani Observatory
starting on Nov., 02 (UT) 15:53:26. We obtained several unfiltered
images of the field. Within enhanced XRT error circle (Osborne et
al., GCN 22084) we do not detect any object. Preliminary photometry
of the field is following
Date UT start t-T0 Filter Exp. OT Err UpLim (3 sigma)
(mid, days) (s)
2017-11-02 15:53:26 0.05497 CR 53*60 n/d n/d 21.7
Photometry is based on nearby USNO-B1.0 stars R2 magnitudes
USNO-B.1_id R2
1124-0422571 18.10
1124-0422577 17.52
1124-0422572 18.34
1124-0422730 17.80
A finding chart can be found at
http://grb.rssi.ru/GRB171102B/GRB171102B_AAO_171102.png
-
TITLE: GCN CIRCULAR
NUMBER: 22175
SUBJECT: GRB 171124A: TShAO optical observations
DATE: 17/12/01 12:48:25 GMT
FROM: Alexei Pozanenko at IKI, Moscow
E. Mazaeva (IKI), A. Pozanenko (IKI), A. Kusakin (FAPHI), I. Reva
(FAPHI), A. Volnova (IKI) report on behalf of larger GRB follow-up
collaboration:
We observed the field of the Fermi/LAT-detected burst GRB 171124A
(Longo et al. GCN 22156) with Zeiss-1000 1-m telescope of Tien Shan
Astronomical Observatory starting on Nov. 27 (UT) 12:28:32. We took
several images in R-filter with exposures of 120 s. We cover all LAT-
localization region.
The three XRT sources ## 1,3,4 (Osborne et al. GCN 22165) are
detected in our stacked image. These sources are also presented in the
USNO-B1.0 catalogue. We do not detect any optical object within X-ray
afterglow (XRT #2 error circle, Osborne et al. GCN 22174). We may
note that 4.5 arcsec South of XRT #2 we detect a galaxy which is also
present in USNO-B1.0.
Preliminary photometry of the field is following:
Date UT start t-T0 Filter Exp. OT Err. UL
(mid, days) (s) (3 sigma)
2017-11-27 12:28:32 3.31825 R 40*120 n/d n/d 22.0
The finding chart of the 32 XRT source can be found at
https://eur03.safelinks.protection.outlook.com/?url=http%3A%2F%2Fgrb.rssi.ru%2FGRB171124A%2FGRB171124A_XRT2.png&data=02%7C01%7Cvoropaev%40live.ru%7Ce8aa7aad768c47672f3f08d538ba8d6f%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C636477296235496605&sdata=OzqdPbMMOYwe%2BbeVNsYtIhzq04OI7fKl4HMn%2FtXfVbc%3D&reserved=0
The photometry is based on nearby USNO-B1.0 stars
USNO-B.1_id R2
1251-0500105 14.64
1252-0499091 16.06
1251-0500220 15.86
1251-0500271 16.17
1251-0500270 16.12
1251-0500372 16.06
-
TITLE: GCN CIRCULAR
NUMBER: 22301
SUBJECT: GRB 180102A: TSHAO optical upper limit
DATE: 18/01/03 17:34:05 GMT
FROM: Alexei Pozanenko at IKI, Moscow
E. Mazaeva (IKI), A. Pozanenko (IKI), I. Reva (FAPHI), M. Krugov
(FAPHI), A. Volnova (IKI), A. Kusakin (FAPHI) report on behalf of
larger GRB follow-up collaboration:
We observed the field of GRB 180102A (Page et al., GCN 22292) with
Zeiss-1000 1-m telescope of Tien Shan Astronomical Observatory starting
on Jan. 02 (UT) 21:34:54. We took several images in R-filter. We do not
detect any new sources within enhanced XRT error circle (Beardmore et
al., GCN 22294). Preliminary photometry of the field is following.
Date UT start t-T0 Filter Exp. OT Err. UL
(mid, days) (s)
2018-01-02 21:34:54 0.25428 R 21*120 n/d n/d 20.6
The photometry is based on several nearby USNO-B1.0 stars.
-
TITLE: GCN CIRCULAR
NUMBER: 22403
SUBJECT: GRB 180205A: AbAO optical observations
DATE: 18/02/08 07:52:59 GMT
FROM: Alexei Pozanenko at IKI, Moscow
E. Mazaeva (IKI), A. Pozanenko (IKI), A. Volnova (IKI), R. Inasaridze
(AbAO), V. Ayvazian (AbAO), O. Kvaratskhelia (AbAO), G. Inasaridze
(AbAO), I. Molotov (KIAM), report on behalf of larger GRB follow-up
collaboration:
We observed the field of GRB 180205A (Evans et al., GCN 22381) with
AS-32 (0.7m) telescope of Abastumani Observatory starting on Feb., 06
(UT) 23:53:51. We obtained several unfiltered images starting on Feb.
05 (UT) 12:54:29. The afterglow of GRB 180205A (Evans et al., GCN
22381; Zheng et al. GCN 22382; Bolmer et al. GCN 22383; Tanvir et al.
GCN 22384; Volnova et al. GCN 22387; Falcon et al. GCN 22380; Xin et al.
22392; Zhu et al. 22395; Emery et al. 22396; Im et al., GCN 22397) is
clearly detected in a stacked image. Preliminary photometry is following.
Date UT start t-T0 Filter Exp. OT Err. UL
(mid, days) (s)
2018-02-06 17:09:23 1.54515 CR 24*60 20.32 0.10 21.2
The photometry is based on several nearby SDSS DR9 stars
SDSS_id R_Lupton
J082719.98+113324.0 16.206 0.013
J082717.26+113400.0 16.092 0.013
J082715.06+113230.6 15.553 0.013
-
TITLE: GCN CIRCULAR
NUMBER: 22411
SUBJECT: GRB 180205A: BAO optical observations
DATE: 18/02/11 10:53:10 GMT
FROM: Alexei Pozanenko at IKI, Moscow
A. Volnova (IKI), A. Novichonok (KIAM), A. Pozanenko (IKI), S. Kotov (SAO
RAS), T. Movsesyan (BAO), E. Mazaeva (IKI) report on behalf of of
larger GRB follow-up collaboration:
We observed the field of GRB 180205A (Evans et al., GCN 22381) with
Schmidt-1m telescope of Byurakan Astrophysical Observatory (BAO). We took
several images in r (Sloan)-filter starting on Feb. 08 (UT) 12:54:29. The
afterglow of GRB 180205A (Evans et al., GCN 22381; Zheng et al. GCN 22382;
Bolmer et al. GCN 22383;Tanvir et al. GCN 22384; Volnova et al. GCN 22387;
Falcon et al. GCN 22380; Xin et al. GCN 22392; Zhu et al. GCN 22395; Emery
et al. GCN 22396; Im et al., GCN 22397; Oksanen et al. 22401; Mazaeva et
al., GCN 22403) is clearly detected in a stacked image. Preliminary
photometry is following.
Date UT start t-T0 Filter Exp. OT Err. UL
(mid, days) (s)
2018-02-08 18:00:00 3.59550 r 12*300 21.3 0.2 21.9
The photometry is based on several nearby SDSS DR9 stars
SDSS_id r
J082719.98+113324.0 16.357 0.005
J082717.26+113400.0 16.292 0.005
J082715.06+113230.6 15.744 0.004
-
TITLE: GCN CIRCULAR
NUMBER: 22440
SUBJECT: MAXI J1813-095 source: AbAO optical observations
DATE: 18/02/24 12:35:09 GMT
FROM: Alexei Pozanenko at IKI, Moscow
E. Mazaeva (IKI), R. Inasaridze (AbAO), A. Pozanenko (IKI), A.
Volnova (IKI), V. Ayvazian (AbAO), O. Kvaratskhelia (AbAO), G.
Inasaridze (AbAO), I. Molotov (KIAM), report on behalf of larger GRB
follow-up collaboration:
We observed the field of the MAXI J1813-095 source (trigger=811167; ATel
#11323 Kawase et al.) with AS-32 (0.7m). We obtained several unfiltered
images starting on Feb. 22 (UT) 01:40:27. We do not detect any evident
object within XRT error circle (Beardmore et al., GCN 22431). The only
one object which is visible in POSS2 in coordinates (J2000) 18:13:33.84
-09:31:54.5 +/-0.8 is also visible in our combined image. The
magnitude of the source is 18.92 +/- 0.12 and calibrated against nearby
USNO-B1.0 stars.
The field photometry is following
Date UT start t-T0 Filter Exp. OT Err. UL
(mid, days) (s)
2018-02-22 01:40:27 0.08079 CR 25*60 n/d n/d 20.2
The photometry is based on several USNO-B1.0 stars
USNO-B.1_id R2
0804-0407386 15.99
0804-0407400 16.34
0804-0407451 15.77
-
TITLE: GCN CIRCULAR
NUMBER: 22448
SUBJECT: GRB 180224A: AbAO optical observations
DATE: 18/02/25 20:06:13 GMT
FROM: Alexei Pozanenko at IKI, Moscow
E. Mazaeva (IKI), A. Pozanenko (IKI), A. Volnova (IKI), R. Inasaridze
(AbAO), V. Ayvazian (AbAO), O. Kvaratskhelia (AbAO), G. Inasaridze
(AbAO), I. Molotov (KIAM), report on behalf of larger GRB follow-up
collaboration:
We observed the field of GRB 180224A (Lien et al., GCN 22442) with AS-32
(0.7m) telescope of Abastumani Observatory starting on Feb. 25 (UT)
01:07:37. The afterglow of GRB 180224A (Lien et al., GCN 22442;
Vladimirov et al., GCN 22444) is clearly detected in a stacked image.
Preliminary photometry is following.
Date UT start t-T0 Filter Exp. OT Err.
UL
(mid, days) (s)
2018-02-25 01:07:37 0.15162 CR 60*60 21.88 0.15 22.6
The photometry is based on nearby SDSS DR9 stars
SDSS_id R_Lupton
J133038.17+380528.6 17.45
J133040.16+380535.7 17.10
J133051.85+380146.4 17.91
We confirm the fast decay of the afterglow and possible host galaxy
association SDSS DR9 J133044.06+380443.0 with the afterglow source (Watson
et al., GCN 22446).
-
TITLE: GCN CIRCULAR
NUMBER: 22497
SUBJECT: GRB 180314B: Zeiss-1000/CrAO optical upper limit
DATE: 18/03/15 17:48:37 GMT
FROM: Alexei Pozanenko at IKI, Moscow
E. Mazaeva (IKI), A. Pozanenko (IKI), A. Novichonok (KIAM, PetrSU), I.
Nikolenko (CrAO), A. Volnova (IKI), I. Molotov (KIAM) report on behalf
of larger GRB follow-up collaboration:
We observed the field of Swift GRB 180314B (D'Avanzo et al., GCN 22491)
with Zeiss-1000/Koshka (CrAO) telescope starting March 15 (UT) 01:55:39.
We obtained several images in R-filter. We do not detect any source
within enhanced Swift-XRT position (Beardmore et al., GCN 22494).
Preliminary photometry of the field is following.
Date UT start t-T0 Filter Exp. OT Err. UL
(mid, days) (s)
2018-03-15 01:55:39 0.15459 R 7*180 n/d n/d 22.2
The photometry is based on nearby USNO-B1.0 stars
USNO-B1_id R1
1135-0426232 15.02
1135-0426125 15.64
1136-0433074 16.46
-
TITLE: GCN CIRCULAR
NUMBER: 22516
SUBJECT: GRB 180316A: TSHAO optical observations
DATE: 18/03/18 18:33:32 GMT
FROM: Alexei Pozanenko at IKI, Moscow
A. Volnova (IKI), A. Kusakin (FAPHI), A. Pozanenko (IKI), I. Reva
(FAPHI), E. Mazaeva (IKI), M. Krugov (FAPHI) report on behalf of larger
GRB follow-up collaboration:
We observed the field of GRB GRB 180316A (Melandri et al., GCN 22500)
with Zeiss-1000 1-m telescope of Tien Shan Astronomical Observatory
starting on Mar. 17 (UT) 23:19:40. We obtained several images in
R-filter. The optical afterglow (Lipunov et al., GCN 22502; Schady et
al. GCN 22504; Martone et al. GCN 22507; Butler et al., GCN 22509;
Breeveld et al. GCN 22510) is marginally detected in a stacked image.
Preliminary photometry of the field is following.
Date UT start t-T0 Filter Exp. OT Err. UL
(mid, days) (s)
2018-03-17 23:19:40 1.78280 R 36*60 21.5 0.5 21.0
The photometry is based on several nearby USNO-B1.0 stars.
-
TITLE: GCN CIRCULAR
NUMBER: 22577
SUBJECT: GRB 180331B: AbAO optical observations
DATE: 18/04/01 03:30:42 GMT
FROM: Alexei Pozanenko at IKI, Moscow
A. Volnova (IKI), A. Pozanenko (IKI), E. Mazaeva (IKI), R. Inasaridze
(AbAO), V. Ayvazian (AbAO), O. Kvaratskhelia (AbAO), G. Kapanadze
(AbAO), I. Molotov (KIAM), report on behalf of larger GRB follow-up
collaboration:
We observed the field of GRB 180331B (Lien et al., GCN 22573) with
AS-32 (0.7m) telescope of Abastumani Observatory starting on Mar. 31
(UT) 17:49:41. We do not detect any object within enhanced XRT
position (Goad et al., GCN 22575). Preliminary photometry of the field
is following.
Date UT start t-T0 Filter Exp. OT Err. UL
(mid, days) (s)
2018-03-31 17:49:41 0.11370 CR 38*60 n/d n/d 22.3
The photometry is based on nearby USNO-B1.0 stars (R2 magnitude).
-
TITLE: GCN CIRCULAR
NUMBER: 22617
SUBJECT: GRB 180402A: ISON-NM early optical limits
DATE: 18/04/08 20:40:42 GMT
FROM: Alexei Pozanenko at IKI, Moscow
E. Mazaeva (IKI), L. Elenin (KIAM), A. Pozanenko (IKI), A. Volnova
(IKI), I. Molotov (KIAM) report on behalf of larger GRB follow-up
collaboration:
We observed the field of the Swift short burst GRB 180402A (Lien et
al., GCN 22580) with 0.4-m telescope of ISON-NM observatory starting on
Apr., 02 (UT) 09:45:39, i.e. 40 seconds after the burst trigger. We
obtained 4 unfiltered images of 30 s exposure each. We do not detect any
source within XRT error circle (Lien et al., GCN 22580). Upper limits
are following.
Date start (Ut) t-T0 Exp. UL (3sigma)
(mid.,sec) (s)
2018-04-02 09:45:39 55 1*30 14.5
2018-04-02 09:45:39 133 4*30 15.0
The photometry is based on nearby USNO-B1.0 stars (R2 magnitudes).
-
TITLE: GCN CIRCULAR
NUMBER: 22735
SUBJECT: GRB 180514A: CrAO/ZTSH optical observations and afterglow candidate
DATE: 18/05/16 17:41:55 GMT
FROM: Alexei Pozanenko at IKI, Moscow
A. Volnova (IKI), V. Rumyantsev (CrAO), A. Pozanenko (IKI), E.
Mazaeva (IKI) report on behalf of larger GRB follow-up collaboration:
We observed the field of the GRB 180514A (LaPorte et al., GCN 22723)
with ZTSH 2.6m telescope of CrAO observatory starting on May 14 (UT)
18:16:14. We took several images in filter R with exposures of 120 s. We
detect one object within enhanced XRT (Goad et al., GCN 22725). The
coordinates of the object are (J2000) 13 09 29.01 +36 58 19.5 with
uncertainty of 0.3 arcsec in each coordinate.
Preliminary photometry of the object in a combined image is following
UT start t-T0 Filter Exp. OT err UL(3sigma)
(mid, days) (s)
2018-05-14 19:07:44 0.23321 R 36*120 22.90 0.07 23.9
The photometry is based on nearby SDSS stars:
SDSS-DR9_id R(Lupton)
J130934.98+365851.3 18.625 0.020
J130931.60+365838.3 18.933 0.023
J130931.36+365901.6 19.497 0.048
Based only on our observation we can not say about variability the
object. However taking into account deep upper limit of NOT observation
at 9.95 hrs (A. de Ugarte Postigo et al., GCN 22731) we can suggest that
the object is the afterglow of GRB 180514A.
-
TITLE: GCN CIRCULAR
NUMBER: 22789
SUBJECT: GRB 180614A: AbAO optical observations
DATE: 18/06/16 15:19:10 GMT
FROM: Alexei Pozanenko at IKI, Moscow
E. Mazaeva (IKI), A. Pozanenko (IKI), R. Inasaridze (AbAO), V.
Ayvazian (AbAO), O. Kvaratskhelia (AbAO), G. Kapanadze (AbAO), A.
Volnova (IKI), I. Molotov (KIAM), report on behalf of larger GRB
follow-up collaboration:
We observed the field of GRB 180614A (Gropp et al., GCN 22780) with
AS-32 (0.7m) telescope of Abastumani Observatory starting on June 14
(UT) 21:33:14. We do not detect any object within enhanced XRT
position (Evans et al., GCN 22781). Preliminary photometry of the field
is following.
Date UT start t-T0 Filter Exp. OT Err. UL
(mid, days) (s)
2018-06-14 21:33:14 0.12582 CR 51*60 n/d n/d 21.5
The photometry is based on nearby USNO-B1.0 stars (R2 magnitude)
USNO-B.1_id R2
1369-0005473 17.71
1369-0005482 16.67
1369-0005487 16.97
1369-0005592 16.51
-
TITLE: GCN CIRCULAR
NUMBER: 22800
SUBJECT: GRB 180620A: ISON-MN afterglow confirmation
DATE: 18/06/20 09:21:07 GMT
FROM: Alexei Pozanenko at IKI, Moscow
L. Elenin (KIAM), A. Pozanenko (IKI), A. Volnova (IKI), E. Mazaeva, I.
Molotov (KIAM) report on behalf of larger GRB follow-up collaboration:
We observed the field of the Swift GRB 180620A (Evans et al., GCN 22798)
with ISON-NM observatory. Observation started 84 s after burst trigger. We
find fading object in coordinates (J2000) 18:39:35.09 +23:14:39.0 which
correspond to the OT candidate (Evans et al., GCN 22798). Preliminary
photometry of the OT in the first image started on 2018-06-20T08:36:21.666
is 17.1m in clear filter. Observation is ongoing.
-
TITLE: GCN CIRCULAR
NUMBER: 22809
SUBJECT: GRB 180618A: TSHAO optical upper limit
DATE: 18/06/20 17:57:39 GMT
FROM: Alexei Pozanenko at IKI, Moscow
E. Mazaeva (IKI), A. Kusakin (FAPHI), A. Pozanenko (IKI), I. Reva
(FAPHI), A. Volnova (IKI), M. Krugov (FAPHI) report on behalf of
larger GRB follow-up collaboration:
We observed the field of GRB 180618A (LaPorte et al., GCN 22790)
with Zeiss-1000 1-m telescope of Tien Shan Astronomical Observatory
starting on June 18 (UT) 15:39:19. We obtained several images in
R-filter. The optical afterglow (LaPorte et al., GCN 22790; Guidorzi et
al., GCN 22792; Tyurina et al., GCN 22797) is not detected in a stacked
image. Preliminary photometry of the field is following.
Date UT start t-T0 Filter Exp. OT Err. UL
(mid, days) (s)
2018-06-18 15:39:19 0.65209 R 36*120 n/d n/d 22.2
The photometry is based on several nearby SDSS-DR10 stars.
Ref.stars
SDSS_id R(Lupton)
J112037.79+735136.8 17.37
J111905.28+734733.2 17.54
J111907.19+734657.8 17.04
-
TITLE: GCN CIRCULAR
NUMBER: 22853
SUBJECT: GRB 180626A: ISON-MN optical observations
DATE: 18/06/26 11:25:47 GMT
FROM: Alexei Pozanenko at IKI, Moscow <apozanen@iki.rssi.ru>
L. Elenin (KIAM), E. Mazaeva (IKI), A. Pozanenko (IKI), A. Volnova
(IKI), I. Molotov (KIAM) report on behalf of larger GRB follow-up
collaboration:
We observed the field of the Swift GRB 180626A (Evans et al., GCN
22850) with ISON-NM observatory. Observation started 51 s after burst
trigger. We do not find optical afterglow (Evans et al., GCN 22850) in
a combined image of first 5 frames. Preliminary photometry of the filed
is following.
Date UT start t-T0 Filter Exp. OT Err. UL
(mid, days) (s)
2018-06-26 08:22:07 0.00146 CR 5* 20 n/d n/d 17.3
The photometry is based on several nearby USNO-B1.0 stars.
-
Результат наблюдения GRB180706A в Кастельгранде, фотометрию сделала Алина, снова не достали, на тот момент блеск был уже слабее 20.9 маг, зато проницание по сумме стало примерно на 1 маг лучше, чем было раньше (когда я не умел определять fwhm с помощью FORTE для фокусировки), циркуляр решили не публиковать:
GRB 180706A
ISON-Castelgrande
date 2018-07-06
Filter Clear
UT start 20:08:08
Exptime 117*60 s
t-T0 0.53229 d
OT n/d
Uplim 3 sigma 19.0
scale = 4.9 "/pix
fwhm = 2.8 pix = 13.7 "
-
Молодец, что пробуешь и гамма-всплески и астероиды наблюдать в Кастельгранде!
-
снова не достали
Малые телескопы спасает только оперативное наведение.
-
Циркуляра ещё нет, но с первенцем -- GRB180720B! :alc:
Блеск на первом кадре около 17.35 маг, минутная экспозиция, высота над горизонтом около 20 градусов -- неплохо! Если найду время, сделаю кривую блеска, там 147 кадров.
В эту же ночь снимал и другой гамма-всплеск, заставший меня врасплох -- GRB180720C, но это был галактический источник, примерно 19 минут после триггера я навёлся и успел снять суммарно 17.3 минут (он уже был на высоте 16 градусов и заходил, нужно было приступать к съёмке GRB180720B), но в той каше из звёзд я ничего не нашёл.
-
Поздравляю!!
-
Циркуляра ещё нет, но с первенцем -- GRB180720B! :alc:
Блеск на первом кадре около 17.35 маг, минутная экспозиция
Сергей, а звезды потянуты из-за плохого ведения?
-
Циркуляра ещё нет, но с первенцем -- GRB180720B! :alc:
Блеск на первом кадре около 17.35 маг, минутная экспозиция
Сергей, а звезды потянуты из-за плохого ведения?
Скорее всего да, потому что ветра в ту ночь практически вообще не было, а других причин не нахожу. Тут самый первый кадр (только из-за этого взял его в картинку сравнения), есть кадры чуть получше, есть чуть похуже.
И циркуляр: https://gcn.gsfc.nasa.gov/gcn3/23020.gcn3
-
TITLE: GCN CIRCULAR
NUMBER: 23020
SUBJECT: GRB 180720B: ISON-Castelgrande optical observations
DATE: 18/07/22 23:39:09 GMT
FROM: Alexei Pozanenko at IKI, Moscow
S. Schmalz (KIAM), F. Graziani (GAUSS). A. Pozanenko (IKI), A. Volnova
(IKI), E. Mazaeva (IKI), I. Molotov (KIAM) report on behalf of larger GRB
follow-up collaboration:
We observed the field of GRB 180720B (Swift-BAT detection: Siegel et al.,
GCN 22973, GCN 22975; Fermi-LAT detection: Bissaldi and Racusin, GCN 22980;
Fermi-GBM detection: Roberts et al., GCN 22981; MAXI/GSC detection: Negoro
et al., GCN 22993; Konus-Wind detection: Frederiks et al., GCN 23011)
with ORI-22 (22 cm) telescope of ISON-Castelgrande observatory starting on
July 20 (UT) 23:04:30. We obtained 150 images of 60 s exposure in Clear
filter. The optical afterglow (e.g. Martone et al. GCN 22976; Sasada et
al., GCN 22977; Reva et al., GCN 22979; Itoh et al., GCN 22983; Kann et
al., GCN 22985) is detected in separate images up to the end of series.
The coordinates of the optical afterglow are (J2000)
:02:06.792 -02:55:04:99 with uncertainties of about 0.5 arcsec in both
coordinates. Preliminary photometry of the afterglow at (UT, mid time)
23:22:21 is R =17.40 +/- 0.15. The photometry is based on nearby USNO-B1.0
(R2) stars.
-
TITLE: GCN CIRCULAR
NUMBER: 23124
SUBJECT: GRB 180809B: CrAO optical observations
DATE: 18/08/10 19:50:36 GMT
FROM: Alexei Pozanenko at IKI, Moscow
E. Mazaeva (IKI), V. Rumyantsev (CrAO), A. Pozanenko (IKI), A.
Volnova (IKI), report on behalf of larger GRB follow-up collaboration:
We observed the field of the GRB 180809B (Moss et al., GCN 23105)
with ZTSH 2.6m telescope of CrAO observatory starting on Aug. 9 (UT)
21:14:58. We took several images in BVRI filters with exposures of 120
s. We detect the afterglow (e.g., Moss et al., GCN 23105; Lipunov et
al., GCN 23109; Schweyer et al. GCN 23111; Guidorzi et al., GCN 23112,
Tiurina et al., GCN 23113).
Preliminary photometry of the afterglow in R- filter is following
UT start t-T0 Filter Exp. OT err
(mid, days) (s)
21:14:58.579 0.03276 R 1*120 19.80 0.05
21:17:05.489 0.03423 R 1*120 19.86 0.04
21:19:12.801 0.03570 R 1*120 19.93 0.05
21:25:54.597 0.04035 R 1*120 20.35 0.05
21:34:27.347 0.04629 R 1*120 20.86 0.08
21:43:00.178 0.05519 R 2*120 21.51 0.11
The photometry is based on nearby USNO-B1.0 stars:
Ref.stars
USNO-B1.0_id R2
0747-0765959 19.65
0746-0776364 18.76
0746-0776499 19.18
-
TITLE: GCN CIRCULAR
NUMBER: 23206
SUBJECT: GRB 180904A: AbAO optical upper limit
DATE: 18/09/05 16:18:22 GMT
FROM: Alexei Pozanenko at IKI, Moscow
A. Volnova (IKI), A. Pozanenko (IKI), R. Inasaridze (AbAO), E.
Mazaeva (IKI), V. Ayvazian (AbAO), O. Kvaratskhelia (AbAO), G.
Kapanadze (AbAO), I. Molotov (KIAM) report on behalf of larger GRB
follow-up collaboration:
We observed the field of the Swift GRB 180904A (D'Ai et al., GCN 23194)
with AS-32 (0.7m) telescope of Abastumani Observatory starting on
September 04 (UT) 21:52:23. We do not detect any object within
enhanced XRT position (Osborne et al., GCN 23196). Preliminary
photometry of the field is following:
Date UT start t-T0 Filter Exp. OT Err. UL
(mid, days) (s)
2018-09-04 21:52:23 0.05731 CR 70*60 n/d n/d 21.5
The photometry is based on nearby USNO-B1.0 stars (R2 magnitude)
USNO-B.1_id R2
1366-0296056 14.72
1366-0296068 15.43
1365-0287325 15.62
1366-0296106 15.21
1366-0296088 14.95
1366-0296093 14.37
-
TITLE: GCN CIRCULAR
NUMBER: 23244
SUBJECT: GRB 180914B : TSHAO optical observations
DATE: 18/09/17 10:26:49 GMT
FROM: Alexei Pozanenko at IKI, Moscow
E. Mazaeva (IKI), A. Pozanenko (IKI), I. Reva (FAPHI), A. Kusakin
(FAPHI), A. Volnova (IKI), M. Krugov (FAPHI) report on behalf of larger
GRB follow-up collaboration:
We observed the field of GRB 180914B (Ursi, et al., GCN 23226; Bissaldi
et al., GCN 23232; Frederiks et al., GCN 23240) with Zeiss-1000 1-m
telescope of Tien Shan Astronomical Observatory starting on September 16
(UT) 19:44:34, obtaining a total of 46.5 minutes exposure in the
Rc-band. Within XRT position (D'Ai et al., GCN 23236) we detect the
object reported by Zheng & Filippenko (GCN 23237), Troja et al. (GCN
23238), (Paul & Kuin, GCN 23241). Preliminary photometry of the objext
is following.
Date UT start t-T0 Filter Exp. OT Err. UL
(mid, days) (s)
2018-09-16 19:44:34 2.07692 R 31*90 19.89 0.05 21.9
The photometry is based on several nearby SDSS-DR9 stars.
SDSS-DR9_id R(Lupton)
J220926.80+250130.1 15.705
J220922.87+250206.0 16.156
J220929.88+250257.7 15.812
J220928.05+250309.0 17.230
J220928.90+250327.6 15.524
J220924.12+250415.7 15.485
J220920.37+250610.6 15.050
J220902.04+250312.5 15.321
-
TITLE: GCN CIRCULAR
NUMBER: 23302
SUBJECT: GRB 180930A: TSHAO optical upper limit
DATE: 18/10/03 17:10:51 GMT
FROM: Alexei Pozanenko at IKI, Moscow
E. Mazaeva (IKI), A. Kusakin (FAPHI), A. Pozanenko (IKI), I. Reva
(FAPHI), A. Volnova (IKI), M. Krugov (FAPHI) report on behalf of larger
GRB follow-up collaboration:
We observed the field of GRB 180930A (Tohuvavohu et al., GCN 23279)
with Zeiss-1000 1-m telescope of Tien Shan Astronomical Observatory
starting on September 30 (UT) 21:55:14, obtaining a total of 31*120 s
exposure in the Rc-band. Within enhanced XRT position (Osborne et al.,
GCN 23282) we do not detect any object. Preliminary photometry of the
field is following.
Date UT start t-T0 Filter Exp. OT Err. UL
(mid, days) (s)
2018-09-30 21:55:14 0.41030 R 31*120 n/d n/d 20.1
The photometry is based on several nearby USNO-B1.0 stars.
-
TITLE: GCN CIRCULAR
NUMBER: 23341
SUBJECT: GRB 181013A: AbAO optical upper limit
DATE: 18/10/15 18:04:31 GMT
FROM: Alexei Pozanenko at IKI, Moscow
E. Mazaeva (IKI), S. Belkin (IKI), A. Pozanenko (IKI), R. Inasaridze
(AbAO), V. Ayvazian (AbAO), O. Kvaratskhelia (AbAO), G. Kapanadze (AbAO),
A. Volnova (IKI), I. Molotov (KIAM) report on behalf of larger GRB
follow-up collaboration:
We observed the field of the Swift GRB 181013A (D'Avanzoet al., GCN 23332)
with AS-32 (0.7m) telescope of Abastumani Observatory starting on Oct. 13
(UT) 15:23:15 . We do not detect any object within XRT position (Osborne
et al., GCN 23334). Preliminary photometry of the field is following:
Date UT start t-T0 Filter Exp. OT Err. UL
(mid, days) (s)
2018-10-13 15:23:15 0.54312 R 58*60 n/d n/d 21.0
The photometry is based on nearby SDSS-DR12 stars
SDSS-DR12_id R(Lupton)
J135025.82+400818.8 16.99
J135102.99+401021.5 16.36
J135015.70+400244.5 13.69
J135009.92+400351.8 13.87
J135009.71+400308.0 14.87
-
TITLE: GCN CIRCULAR
NUMBER: 23410
SUBJECT: GRB 181103A: AbAO optical upper limit
DATE: 18/11/05 08:51:38 GMT
FROM: Alexei Pozanenko at IKI, Moscow
A. Volnova (IKI), A. Pozanenko (IKI), R. Inasaridze (AbAO), E.
Mazaeva (IKI), S. Belkin (IKI), V. Ayvazian (AbAO), O. Kvaratskhelia
(AbAO), G. Kapanadze (AbAO), I. Molotov (KIAM) report on behalf of
larger GRB follow-up collaboration:
We observed the field of the Swift GRB 181103A (Tohuvavohu et al., GCN
23402) with AS-32 (0.7m) telescope of Abastumani Observatory starting on
Nov. 3 (UT) 15:02:42. We do not detect any object within enhanced
XRT position (Evans et al., GCN 23403). In particular we do not detect
the source reported by LaPorte et al. (GCN 23407). Preliminary
photometry of the field is following:
Date UT start t-T0 Filter Exp. OT Err. UL
(mid, days) (s)
2018-11-03 15:02:42 0.47151 R 63*60 n/d n/d 20.5
The photometry is based on nearby SDSS-DR12 stars (R, Lupton
transformation).
-
TITLE: GCN CIRCULAR
NUMBER: 23479
SUBJECT: GRB 181201A: Zeiss-1000/CrAO optical observations
DATE: 18/12/01 23:21:37 GMT
FROM: Alina Volnova at SAI MSU
E. Mazaeva (IKI), A. Volnova (IKI), A. Pozanenko (IKI), I. Nikolenko
(CrAO), D. Chestnov (KIAM, PetrSU), I. Molotov (KIAM)
report on behalf of larger GRB follow-up collaboration:
We observed the field of the INTEGRAL GRB 181201A (Mereghetti et al.,
GCN 23469) with Zeiss-1000/Koshka (CrAO) telescope starting Dec 01,
16:55:28 UT. We obtained several frames in R filter. The optical
afterglow (Podesta et al., GCN 23470; Kong, GCN 23475) is clearly
detected in the stacked frame. Preliminary photometry is following:
Date UT start t-T0 Filter Exp. OT Err.
(mid, days) (s)
2018-12-01 16:55:28 0.60359 R 23*60 17.17 0.05
The photometry is based on SDSS DR12 nearby stars.
-
TITLE: GCN CIRCULAR
NUMBER: 23530
SUBJECT: GRB 181213A : TSHAO optical observations
DATE: 18/12/13 17:45:03 GMT
FROM: Alexei Pozanenko at IKI, Moscow
S. Belkin (IKI), A. Kusakin (FAPHI), A. Pozanenko (IKI), I. Reva
(FAPHI), A. Volnova (IKI), E. Mazaeva (IKI), M. Krugov (FAPHI) report
on behalf of larger GRB follow-up collaboration:
We observed the field of GRB 181213A (Evans et al., GCN 23525; Osborne
et al., GCN 23528) with Zeiss-1000 1-m telescope of Tien Shan
Astronomical Observatory starting on Dec. 13 (UT) 13:39:23. We detected
the OT reported earlier (Lipunov et al., GCN 23526; Hu et al. GCN 23527;
Siegel et al., GCN 23529). Preliminary photometry of the object is
following.
Date UT start t-T0 Filter Exp. OT Err. UL
(mid, days) (s)
2018-12-13 13:39:23 0.04427 R 2640 17.27 0.08 21.8
The photometry is based on nearby USNO-B1.0 stars
USNO-B1.0_id R2
1684-0061916 15.83
1684-0061968 16.55
-
TITLE: GCN CIRCULAR
NUMBER: 23539
SUBJECT: GRB 181213A: AbAO optical observations
DATE: 18/12/14 11:31:27 GMT
FROM: Alexei Pozanenko at IKI, Moscow
S. Belkin (IKI), A. Pozanenko (IKI), R. Ya. Inasaridze (AbAO),
V.R. Ayvazian (AbAO), G. V. Kapanadze (AbAO), E. Mazaeva (IKI),
A. Volnova (IKI), I. Molotov (KIAM) report on behalf of larger GRB
follow-up collaboration:
We observed the field of GRB 181213A (Evans et al., GCN 23525; Osborne
et al., GCN 23528) with AS-32 (0.7m) telescope of Abastumani Observatory
starting on Dec. 13 (UT) 15:42:55. We detected the OT (e.g. Lipunov
et al., GCN 23526; Hu et al. GCN 23527; Siegel et al., GCN 23529;
Belkin et al., GCN 23530). Preliminary photometry of the afterglow is
following.
Date UT start t-T0 Filter Exp. OT Err. UL
(mid, days) (s)
2018-12-13 15:42:55 0.13264 R 65*60 18.75 0.08 20.9
The photometry is based on nearby USNO-B1.0 stars
USNO-B1.0_id R2
1684-0061916 15.83
1684-0061968 16.55
-
TITLE: GCN CIRCULAR
NUMBER: 23601
SUBJECT: GRB 181201A: photometric signature of the SN
DATE: 19/01/03 20:40:28 GMT
FROM: Alexei Pozanenko at IKI, Moscow
S. Belkin (IKI), E. Mazaeva (IKI), A. Pozanenko (IKI), P. Minaev
(IKI), A. Volnova (IKI), N. Tominaga (Konan University), S. Blinnikov
(ITEP), D. Chestnov (KIAM), E. Klunko (ISTP), I. Reva (FAPI), V.
Rumyantsev (CrAO), D. Buckley (SAAO), R. Ya. Inasaridze (AbAO) report
on behalf of GRB-FuN collaboration:
We observed the optical afterglow (e.g. Podesta et al., GCN 23470;
Kong GCN 23475) of the INTEGRAL GRB 181201A (Mereghetti et al., GCN
23469) with Gemini-N telescope on Dec. 22 in g'r'i'z and Dec. 24 in
r'i'-filters. Preliminary photometry of the OT is following.
Date t-T0 Filter Exp. OT Err.
(mid, days) (s)
2018-12-22 21.10536 i' 3*180 21.50 0.03
2018-12-22 21.09536 r' 3*180 21.82 0.03
2018-12-24 23.09418 i' 3*180 21.32 0.06
2018-12-24 23.10793 r' 3*240 21.83 0.03
The photometry is based on the SDSS-DR12 star
SDSS-DR12_id i' r'
J211710.81-123706.3 16.257 16.517
Based on our previous observations and photometry reported in GCNs
23475, 23478, 23486, 23504 we plot a light curve of the afterglow in
r'-filter.
Power law approximation of the LC before 2018-12-22 has an index of
1.19 +/-0.01. The photometry obtained on 2018-12-22 and 2018-12-24 has a
significance of about 2 and 6.5 sigma above the power law approximation.
Additionally the i'-magnitude increases between the two epochs. We can
suggest that we observed the Supernova signature associated with GRB
181201A.
-
TITLE: GCN CIRCULAR
NUMBER: 23620
SUBJECT: GRB 190106A : TSHAO optical observations
DATE: 19/01/06 15:27:05 GMT
FROM: Alexei Pozanenko at IKI, Moscow
I. Reva (FAPHI), A. Pozanenko (IKI),
A. Kusakin (FAPHI), S. Belkin (IKI), A. Volnova (IKI), E. Mazaeva
(IKI), M. Krugov (FAPHI) report on behalf of larger GRB follow-up
collaboration:
We observed the optical transient (Yurkov et al., GCN 23614; Sonbas et
al., GCN 23615; Lipunov et al., GCN 23616; Itoh et al., GCN 23617) of
GRB 190106A (Sonbas et al., GCN 23615) with Zeiss-1000 1-m telescope of
Tien Shan Astronomical Observatory starting on Jan. 6 (UT) 13:45:42.
Preliminary photometry of the object in the beginnig of observations is
R= 16.23 +/- 0.05, and the optical transient is faded as R= 17/5 +/- 0.1
at (UT) 14:24:04. (The photometry is based on nearby USNO-B1.0 stars).
Observations are continuing in R and B - filters.
-
TITLE: GCN CIRCULAR
NUMBER: 23846
SUBJECT: GRB 190203A: Koshka Zeiss-1000 optical upper limit
DATE: 19/02/03 16:51:04 GMT
FROM: Alexei Pozanenko at IKI, Moscow
A. Novichonok (KIAM), A. Pozanenko (IKI), E. Mazaeva (IKI), S. Belkin
(IKI), A. Volnova (IKI), I. Molotov (KIAM) report on behalf of larger
GRB follow-up collaboration:
We observed the field of GRB 190203A (Lien , et al., GCN 23845) with
Zeiss-1000 1-m telescope of Koshka Observatory starting on Feb. 03 (UT)
02:40:34 in R-filter under not optimal weather conditions. We do not
detect the optical afterglow candidate (Lien , et al., GCN 23830).
Preliminary photometry of the combined of first 4 images of 4*180
seconds started on 2019-02-03 16:01:10 is R=19.5. Observation is continuing.
The photometry is based on several nearby USNO-B1.0 stars.
-
TITLE: GCN CIRCULAR
NUMBER: 23843
SUBJECT: GRB 190202A: TSHAO optical observations
DATE: 19/02/03 11:14:49 GMT
FROM: Alexei Pozanenko at IKI, Moscow
S. Belkin (IKI), I. Reva (FAPHI), A. Pozanenko (IKI), E. Mazaeva (IKI),
A. Volnova (IKI), A. Kusakin (FAPHI), M. Krugov (FAPHI) report on behalf
of IKI-GRB-FuN collaboration:
We observed the afterglow of GRB 190202A (Lien et al., GCN 23830;
Novichonok et al., GCN 23831; Evans et al., GCN 23832; Steeghs et al.,
GCN 23833; Kuin et al., GCN 23834; Verrecchia et al., GCN 23835;
Markwardt et al., GCN 23836; Veres et al., GCN 23838; Cucchiara et al.,
GCN 23839; Lien et al., GCN 23840; Paek et al., GCN 23841; Malesani et
al., GCN 23842) with Zeiss-1000 1-m telescope of Tien Shan Astronomical
Observatory starting on Feb. 02 (UT) 21:04:32. Preliminary photometry
of the field is following.
Date UT start t-T0 Filter Exp. OT Err. UL
(mid, days) (s)
2019-02-02 21:04:32 0.82502 R 21*120 20.43 0.11 21.6
The photometry is based on nearby USNO-B1.0 stars
-
TITLE: GCN CIRCULAR
NUMBER: 23919
SUBJECT: GRB 190220B: Kitab Observatory optical upper limit
DATE: 19/02/21 14:58:34 GMT
FROM: Alexei Pozanenko at IKI, Moscow
S. Belkin (IKI), A. Novichonok (KIAM), A. Pozanenko (IKI), E. Mazaeva
(IKI), A. Volnova (IKI), I. Molotov (KIAM) report on behalf of larger
GRB follow-up collaboration:
We observed the field of INTEGRAL GRB 190220B (Gotz et al., GCN 23915)
with RC-36 0.36-m telescope of Kitab Observatory starting on Feb. 20
(UT) 23:20:25 in Clear filter. We do not find any optical afterglow
candidate in the INTEGRAL GRB 190220B localization error circle (Gotz,
et al., GCN 23915) with is in agreement with earlier non detection by
BOOTES-4 (Hu et al., GCN 23916). Preliminary photometry of the field is
following.
Date UT start t-T0 Filter Exp. OT Err. UL(3sigma)
(mid, days) (s)
2019-02-20 23:20:25 0.14972 CR 48*60 19.0 n/d n/d
The photometry is based on the nearby USNO-B1 (R2) stars.
-
TITLE: GCN CIRCULAR
NUMBER: 23920
SUBJECT: GRB 190219A: CrAO and AbAO optical upper limit
DATE: 19/02/21 18:44:49 GMT
FROM: Alexei Pozanenko at IKI, Moscow
A. Volnova (IKI), S. Nazarov (CrAO), S. Schmalz (KIAM), R. Ya.
Inasaridze (AbAO), A. Pozanenko (IKI), S. Belkin (IKI), E. Mazaeva
(IKI), I. Molotov (KIAM) report on behalf of IKI-GRB-FuN collaboration:
We observed the field of GRB 190219A (Beardmore et al., GCN 23902) with
AZT-8 of CrAO, AS-32 (0.7m) telescope of Abastumani Observatory and
ORI-22 telescope of ISON-Castelgrande Observatory, first observation
starting on Feb. 19 (UT) 19:48:14. We do not detect any object within
enhanced XRT error circle (Beardmore et al., GCN 23907). In particular
we do not detect the afterglow candidate (Xu et al., GCN 23911).
Preliminary photometry of the field is following.
date UT start t-T0 Filter Exp. UL Obs./Tel.
(mid, d) (s) (3 sigma)
2019-02-19 20:14:14 0.02991 R 780 20.3 CrAO/AZT-8
2019-02-20 00:39:36 0.28998 R 95*60 20.8 AbAO/AS-32
The photometry is based on nearby USNO-B1.0 stars.
-
TITLE: GCN CIRCULAR
NUMBER: 24556
SUBJECT: GRB 190515A: Kitab Observatory optical upper limit
DATE: 19/05/15 18:43:38 GMT
FROM: Alexei Pozanenko at IKI, Moscow
S. Belkin (IKI), A. Novichonok (KIAM), A. Pozanenko (IKI), E. Mazaeva
(IKI), A. Volnova (IKI), I. Molotov (KIAM) report on behalf of larger
IKI GRB FuN collaboration:
We observed the field of the Swift GRB 190515A (Moss et al., GCN 24553)
with RC-36 0.36-m telescope of Kitab Observatory starting on May 15
(UT) 16:13:02 in Clear filter. We do not find any optical source
neither in the first image, nor in a stacked image within prompt
enhanced Swift-XRT position (Evans et al., GCN 24554).
Preliminary photometry of the field is following.
Date UT start t-T0 Filter Exp. OT Err. UL(3sigma)
(mid, days) (s)
2019-05-15 16:13:02 0.00655 CR 1*90 n/d n/d 18.6
2019-05-15 16:13:02 0.02686 CR 40*90 n/d n/d 20.3
The photometry is based on the nearby USNO-B1 (R2) star:
USNO-B1.0_id R2
1422-0205150 15.02
The closest object which is not presented in any catalogs marginally
detected in our stacked image has coordinates (J2000) 06:35:24.07
+52:19:12.4 with uncertainty of 1 arcsec in both coordinates and
brightness of 20.4m (S/N =2). The position of the object is 12 arcsec
apart from the the center of prompt enhanced Swift-XRT position (Evans
et al., GCN 24554). At this time we cannot say about variability of the
object.
-
TITLE: GCN CIRCULAR
NUMBER: 24712
SUBJECT: GRB 190530A: Mondy and AbAO optical observations
DATE: 19/06/02 09:53:20 GMT
FROM: Alexei Pozanenko at IKI, Moscow
S. Belkin (IKI), E. Klunko (ISTP), R. Ya. Inasaridze (AbAO), A.
Pozanenko (IKI), V.R. Ayvazian (AbAO), E. Mazaeva (IKI), A. Volnova
(IKI) report on behalf of IKI GRB FuN collaboration:
We continue observations the optical afterglow (Lipunov et al., GCN
24680, 24693 and also e.g. Kann et al., GCN 24684; Melandri et al., GCN
24689; Heintz et al., GCN 24686; Lzzo et al., GCN 24687; Xin et al.,
GCN 24688; Watson et al., GCN 24690; Xin et al., GCN 24697) of the
Fermi GRB 190530A (Fermi GBM Team, GCN 24676; Longo et al., GCN
24679) with AZT-33IK telescope of Sayan observatory (Mondy) and AS-32
(0.7m) telescope of Abastumani Observatory. The afterglow is clearly
visible in stacked images. Preliminary photometry of the afterglow is
following.
Date UT start t-T0 Filter Exp. OT Err. UL
(mid, days) (s)
2019-06-01 15:35:00 2.23638 R 29*60 19.62 0.07 21.2
2019-06-01 17:38:57 2.31769 R 30*60 19.70 0.14 20.6
The photometry is based on the nearby USNO-B1.0 stars
USNO-B1.0_id R2
1255-0157926 13.35
1254-0159410 12.63
1255-0157793 13.56
The photometry might be influenced by nearby optical source presented in
Pan-STARRS DR1 catalog (ID 150571205309266249) mentioned in (Lipunov
et al., GCN 24680).
-
TITLE: GCN CIRCULAR
NUMBER: 24754
SUBJECT: GRB 190604B: Kitab observatory optical upper limit
DATE: 19/06/05 19:24:37 GMT
FROM: Alexei Pozanenko at IKI, Moscow
S. Belkin (IKI), A. Novichonok (KIAM), A. Pozanenko (IKI), E. Mazaeva
(IKI), A. Volnova (IKI), I. Molotov (KIAM), Sh. Ehgamberdiev (UBAI)
report on behalf of larger IKI GRB FuN collaboration:
We observed the field of the Swift GRB 190604B (Page et al., GCN 24742)
with RC-36 0.36-m telescope of Kitab Observatory starting on June 04
(UT) 22:26:32 in Clear filter. We do not find any optical source
within enhanced Swift-XRT position (Evans et al., GCN 24746). The
non-detection is consistent with BOOTES-3 results (Hu et al., GCN 24750).
Preliminary photometry of the field is following.
Date UT start t-T0 Filter Exp. OT Err. UL(3sigma)
(mid, days) (s)
2019-06-04 22:26:32 0.32068 CR 21*60 n/d n/d 18.6
The photometry is based on the nearby USNO-B1 (R2) stars.
-
TITLE: GCN CIRCULAR
NUMBER: 24838
SUBJECT: GRB 1906013A: Kitab and AbAO optical upper limit
DATE: 19/06/15 09:38:38 GMT
FROM: Alexei Pozanenko at IKI, Moscow
S. Belkin (IKI), A. Novichonok (KIAM), A. Zhornichenko (KIAM), R. Ya.
Inasaridze (AbAO), V.R. Ayvazian (AbAO), A. Pozanenko (IKI), E. Mazaeva
(IKI), A. Volnova (IKI), I. Molotov (KIAM), Sh. Ehgamberdiev (UBAI) report
on behalf of larger IKI GRB FuN collaboration:
We observed the field of the GRB 190613A (Ambrosi et al., GCN 24798)
with RC-36 telescope of Kitab Observatory and AS-32 of Abastumani
observatory . We do not detect the optical afterglow (Ambrosi et al., GCN
24798; Zheng et al., GCN 24801; Lipunov et al., GCN 24803). Preliminary
photometry of the field is following.
Date UT start t-T0 Filter Exp. OT Err. UL(3sigma)
Telescope
(mid, days) (s)
2019-06-13 16:26:41 0.54575 CR 5500 n/d n/d 20.6 RC-36
2019-06-13 21:33:40 0.73706 R 1800 n/d n/d 21.0 AS-32
The photometry is based on the nearby USNO-B1 (R2) stars
USNO-B1.0_id R2
1572-0165015 13.62
1572-0164999 14.91
1572-0164916 14.28
-
TITLE: GCN CIRCULAR
NUMBER: 24841
SUBJECT: GRB 190613B: Kitab observatory optical upper limit
DATE: 19/06/16 14:10:05 GMT
FROM: Alexei Pozanenko at IKI, Moscow
S. Belkin (IKI), A. Novichonok (KIAM), A. Zhornichenko (KIAM), A. Pozanenko
(IKI), E. Mazaeva (IKI), A. Volnova (IKI), I. Molotov (KIAM), Sh.
Ehgamberdiev (UBAI) report on behalf of larger GRB IKI FuN collaboration:
We observed the field of the GRB 190613B (D'Aiet al., GCN 24807) with
RC-36 0.36-m telescope of Kitab Observatory starting on June 13 (UT)
22:26:32 in Clear filter. We do not detect the optical afterglow
(D'Aiet al., GCN 24807; Marshall al., GCN 24817; Zheng al., GCN 24818;
Ugarte Postigo al., GCN 24825; Hu al., GCN 24826).
Preliminary photometry of the field is following.
Date UT start t-T0 Filter Exp. OT Err. UL(3sigma)
(mid, days) (s)
2019-06-13 20:55:3 0.43001 CR 3600 n/d n/d 20.0
The photometry is based on the nearby USNO-B1 (R2) stars.
USNO-B1.0_id R2
0853-0556521 16.14
0853-0556781 16.31
-
TITLE: GCN CIRCULAR
NUMBER: 24947
SUBJECT: GRB 190630C: ISON-Castelgrande optical upper limit
DATE: 19/07/01 20:07:58 GMT
FROM: Alexei Pozanenko at IKI, Moscow
S. Belkin (IKI), S. Schmalz (KIAM), A. Pozanenko (IKI), A. Volnova
(IKI), E. Mazaeva (IKI), I. Molotov (KIAM) report on behalf of larger
GRB IKI FuN collaboration:
We observed the field of GRB 190630C (Ukwatta et al., GCN 24927) with
ORI-22 (22 cm) telescope of ISON-Castelgrande observatory in Clear
filter starting on July 01 (UT) 00:03:42. We do not detect any object
within enhanced Swift-XRT position (Goad et al., GCN 24930). Preliminary
photometry of the field is following
Date UT start t-T0 Filter Exp. OT Err. UL
(mid, days) (s)
2019-07-01 00:03:42 0.02584 CR 53*60 n/d n/d 18.8
The photometry is based on nearby USNO-B1.0 (R2) stars.
-
TITLE: GCN CIRCULAR
NUMBER: 25683
SUBJECT: ZTF19abvizsw: AbAO and CrAO photometry
DATE: 19/09/07 14:05:41 GMT
FROM: Alexei Pozanenko at IKI, Moscow
S. Belkin (IKI), A. Pozanenko (IKI), R. Ya. Inasaridze (AbAO), V.
Rumyantsev (CrAO), A. Volnova (IKI), E. Mazaeva (IKI), I. Molotov
(KIAM) report on behalf of IKI GRB FuN collaboration:
We observed the ZTF19abvizsw/AT2019pim (Kool et al., GCN 25616; Burdge
et al., GCN 25639; Wei et al., GCN 15640; Perley et al., GCN 25643;
Levan et al., GCN 25653; Becerra et al., GCN 25655;) with AS-32 (0.7m)
telescope of Abastumani Observatory and ZTSh telescope of CrAO.
Preliminary photometry of the the optical transients is following.
date UT start MJD Filter Exp. OT OT_err Obs./Tel.
(mid, d) (s)
2019-09-04 16:54:07 58730.723 R 54*60 21.27 0.16 AbAO/AS-32
2019-09-05 21:49:03 58731.923 R 20*120 21.33 0.14 CrAO/ZTSh
The photometry of the latest epoch of 2019-09-05 might be slightly
contaminated by red southward star (see also Burdge et al., GCN 25639).
We note the flattening of the initial decay previously reported by
Becerra (GCN 25655).
The photometry is based on nearby USNO-B1.0 stars
USNO-B1.0_id R2
1514-0239703 18.81
1514-0239806 19.68