GCN Circular 11589
Subject
GRB 110112A: optical upper limit
Date
2011-01-20T21:37:07Z (13 years ago)
From
Alexei Pozanenko at IKI, Moscow <apozanen@iki.rssi.ru>
K. Grankin, V. Rumyantsev (CrAO), A. Pozanenko (IKI) report on behalf of
larger GRB follow-up collaboration:
We observed the field of the Swift GRB 110112A (Stamatikos et al., GCN
11553) with AZT-11 telescope of CrAO starting on Jan. 12 (UT) 16:35. In the
enhanced Swift-XRT position (Evanset al., GCN 11556) we do not detect
optical afterglow (Xin et al., GCN 11554) up to R=20.6. The photometry is
based on the
USNO B1.0 star 1164-0563915 (21 59 45.42 +26 27 18.3) assuming R=15.64.
T0+ Filter, Exposure, mag.
(mid, d) (s)
0.52955 R 13x180 R >20.6