GCN Circular 3655
Subject
GRB 050721a: Optical Observations
Event
Date
2005-07-21T06:25:56Z (21 years ago)
From
Ken ichi Torii at RIKEN <torii@crab.riken.go.jp>
K. Torii (Osaka U.) reports:
"The error region of the Swift GRB 050721a (Antonelli et al. GCN
3654) was imaged with the 0.3 m telescope in the New Mexico Skies
observatory. The observation started at 2005 July 21, 04:35:23 UT
(369 s after the trigger) and several 120 s integrations in I band
were obtained.
We identify a bright (I~15 mag) fading object whose position is
consistent with the XRT afterglow candidate reported in GCN
3654. However, this source does not seem to be spatially resolved with
a nearby 2MASS star in our frames. Further observations and analyses
are in progress."