GCN Circular 8335
Subject
GRB 081007: Gemini-south redshift
Date
2008-10-07T13:46:48Z (16 years ago)
From
Edo Berger at Princton U <eberger@astro.princeton.edu>
E. Berger (Harvard), D. B. Fox, A. Cucchiara (Penn State), and S. B. Cenko
(UC Berkeley) report on behalf of a larger collaboration:
"Starting on 2008 October 7.276 UT (73 min after the burst) we observed
the optical counterpart of GRB 081007 (GCN 8330) using GMOS on the
Gemini-South 8-m telescope. Two 900-sec exposures were obtained covering
a wavlength range of 4600-7400A. We identify two absorption features at
6016.7 and 6070.3 A, as well as a weak emission line at 5700.9 A, which
correspond to the CaII H&K and [OII]3727 lines at a redshift of
z=0.5295+/-0.0001."