GCN Circular 4255
Subject
GRB 051111: Keck HIRES redshift
Date
2005-11-11T08:13:00Z (18 years ago)
From
Jason Prochaska at UCO/Lick Obs <xavier@ucolick.org>
G. Hill (Keck), J.X. Prochaska (UCO/Lick), D. Fox (Penn State),
B. Schaefer (Keck), M. Reed (Keck):
"We have observed GRB 051111 with HIRESr on the Keck telescope
for 1800s starting UT 07:03. We detect a series of strong MgII,
FeII and SiII absorption features at a redshift z=1.55. Because we
detect no additional features redward of the MgII doublet, we
adopt this as the redshift of GRB 051111."
A full analysis is underway.