GCN Circular 11672
Subject
GRB 110205A: optical observations in Mondy observatory
Date
2011-02-08T19:00:44Z (13 years ago)
From
Alina Volnova at SAI MSU <alinusss@gmail.com>
A. Volnova , E. Klunko (ISTP), A. Pozanenko (IKI) on behalf of larger
GRB follow up collaboration report:
We observed the Swift GRB 110205A (Beardmore et al., GCN 11629) with
AZT-33IK telescope of Sayan observatory (Mondy) on Feb.05 between (UT)
12:06:19 and 20:25:34, and we took several series in R-band with
exposures 60 - 180s.
The optical afterglow (Beardmore et al., GCN 11629) is clearly
detected on the stacked images. The photometry calibration performed
against the USNO-B1.0 star 1575-0155390 ((J2000) RA = 10:58:34.20, Dec
= +67:31:45.3), assuming R = 16.7:
T0+ Filter, Exposure, OT mag., UpperLimit
(mid, d) (s)
0.43968 R 51x60 19.88+/-0.04 21.9
0.71912 R 25x120+20x180 20.85+/-0.05 22.8
The power-law decay index during our observation is alpha ~1.8 which
is consistent with the index reported by Urata et al., GCN 11648.
[GCN OPS NOTE(08aug11): Per author's request, the spelling of the EK
author was corrected.]