GCN Circular 11973
Subject
GRB 110422A: optical observations in CrAO
Event
Date
2011-04-24T22:48:24Z (15 years ago)
From
Alexei Pozanenko at IKI, Moscow <apozanen@iki.rssi.ru>
V. Rumyantsev, K. Antoniuk (CrAO), A. Pozanenko (IKI) report on behalf of
larger GRB follow-up collaboration:
We observed the field of the Swift GRB 110422A (Mangano et al., GCN
11957) with AZT-11 telescope of CrAO between Apr. 22 (UT) 19:13 and 20:11.
We clearly detect the afterglow (Klunko et al. GCN 11958, Gres et al. GCN
11960, Xu et al. GCN 11961). The photometry is based on the USNO B1.0 star
1651-0050626 (07 28 13.15 +75 06 51.5) assuming R=18.56 :
T0+ Filter, Exposure, mag.
(mid, d) (s)
0.1675 R 20x180 19.32 +/-0.08