GCN Circular 4383
Subject
GRB 051221: Continued fading of optical afterglow
Date
2005-12-22T06:53:39Z (18 years ago)
From
Edo Berger at Carnegie Obs <eberger@ociw.edu>
E. Berger (Carnegie Observatories), A. M. Soderberg (Caltech), B. P.
Schmidt (ANU), and P. A. Price (IfA) report:
"We obtained a second epoch of r-band imaging with GMOS on Gemini-north
starting on 2005 Dec. 22.195 UT (26.8 hr after the burst and 24 hr after
the previous set of observations). A total of 960 sec were obtained in
excellent seeing conditions. We find that the optical afterglow candidate
(GCN 4375; see also GCNs 4367 & 4369) has faded by about 1.1 mag between
the two epochs, confirming our earlier claim."