GCN Circular 3635
Subject
GRB050712: optical limits
Date
2005-07-17T16:28:43Z (19 years ago)
From
Alexei Pozanenko at IKI, Moscow <apozanen@iki.rssi.ru>
V.Rumyantsev, E.Sergeeva (CrAO), D.Sharapov, M.Ibrahimov (MAO), G.
Kornienko (UAPhO), A.Pozanenko (IKI) on behalf of larger GRB follow up
collaboration report:
We have observed the error box of the Swift GRB050712 (D. Grupe et al., GCN
3573) with 0.4m telescope of Ussuriysk Astrophysical Observatory (UAPhO),
1.5m telescope of Maidanak observatory (MAO), and 0.7m AZT-8 telescope of
CrAO on July, 12-13. We do not detect OT found by T. Poole et al. (GCN
3596) and E. Maiorano et al. (GCN 3601). Upper limits of stacked images
calibrated against of R USNO-A2.0 are following:
Start time, Exposure, Filter, Limiting mag.
(UT) (s)
July,12 15:06 4x60 none 15.0
July,12 23:09 3x180 R 19.0
July,13 00:36 11x60 R 19.5
Detailed analysis of the observed images is underway.
The message may be cited.