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Автор Тема: Наблюдаем гамма-всплески  (Прочитано 55775 раз)
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Игорь
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« : 11 Декабрь 2010, 11:53:39 »

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.  В замешательстве

* grb_table_1292056730.txt (14.21 Кб - загружено 395 раз.)
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« Ответ #331 : 13 Январь 2017, 20:04:52 »

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.
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« Ответ #332 : 17 Январь 2017, 16:51:36 »

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/
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« Ответ #333 : 25 Январь 2017, 09:45:06 »

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
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« Ответ #334 : 05 Апрель 2017, 07:22:27 »

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.

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« Ответ #335 : 06 Апрель 2017, 17:30:18 »

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
« Последнее редактирование: 06 Апрель 2017, 17:50:25 от Игорь » Записан
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« Ответ #336 : 22 Апрель 2017, 10:45:40 »

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

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« Ответ #337 : 26 Май 2017, 01:51:27 »

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
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« Ответ #338 : 30 Май 2017, 12:56:56 »

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.
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« Ответ #339 : 01 Июнь 2017, 10:11:46 »

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.

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« Ответ #340 : 02 Июнь 2017, 18:28:49 »

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
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« Ответ #341 : 06 Июнь 2017, 00:38:05 »

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
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« Ответ #342 : 06 Июнь 2017, 00:41:15 »

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
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« Ответ #343 : 10 Июнь 2017, 10:45:59 »

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
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« Ответ #344 : 28 Июнь 2017, 08:30:24 »

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
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« Ответ #345 : 06 Июль 2017, 18:57:44 »

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
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