GCN Circular 11266
Subject
GRB 100901A: optical observation in Maidanak, break confirmation
Date
2010-09-10T01:48:03Z (14 years ago)
From
Alexei Pozanenko at IKI, Moscow <apozanen@iki.rssi.ru>
A. Volnova (SAI MSU), A. Pozanenko (IKI), M. Ibrahimov (MAO), B. Hafizov
(MAO), B. Satovski (Astrotel) report on behalf of larger GRB follow-up
collaboration:
We observed the field of the Swift GRB 100901A (Immler et al., GCN 11159)
with AZT-22 telescope of Maidanak observatory starting Sep. 7 (UT)
20:32:06. We clearly detect the afterglow (Immler et al., GCN 11159 and
other follow-up ground based observations) in R-filter. The photometry of a
stacked image is based on the same reference SDSS-DR7 stars used by our
collaboration previously (GCNs 11191, 11200, 11255):
T0+ Filter, Exposure, mag.
(mid, d) (s)
6.2977 R 4*300 22.05+/-0.09
The photometry above confirms suggested break (Kann et al, GCN 11246) in a
light curve of the afterglow.