GCN Circular 5183
Subject
GRB 060526: RTT150 optical observations
Date
2006-05-29T05:42:12Z (18 years ago)
From
Rodion Burenin at IKI, Moscow <rodion@hea.iki.rssi.ru>
I. Khamitov (TUG), I. Bikmaev, N. Sakhibullin (KSU/AST),
Z. Aslan (TUG), U. Kiziloglu (METU), E. Gogus (Sabanci Uni.),
R. Burenin, M. Pavlinsky, R. Sunyaev (IKI)
report:
We observed the field around position of optical counterpart of
GRB060526 (Campana et al. GCN 5162; French & Jelinek GCN 5165; Rykoff et
al. GCN 5166) with Russian-Turkish 1.5-m telescope (RTT150,
Bakirlitepe,TUBITAK National Observatory, Turkey). The observations were
made in Rc in two epochs: May 28, 20:07UT and May 29, 00:53UT (~51.64
and ~56.41 hours after the burst). The afterglow is detected clearly in
Rc bands in both epochs.
We estimate the following Rc magnitudes for the OT:
t-t0 m_R err
51.64 21.464 0.04
56.41 21.816 0.05
The last value indicates that the afterglow light curve had returned to
the extrapolated power-law decay with index -1.2 which was found between
5 and 16 hours of post-burst reported by Khamitov et al. (GCN 5173),
Halpern et al. (GCN 5176) and Cobb et al. (GCN 5180).
Our Rc lightcurve can be found at:
http://hea.iki.rssi.ru/grb/060526/lc_0528.jpg
This message may be cited.
