GCN Circular 3962
Subject
GRB 050911: z~0.16 cluster in the field
Date
2005-09-11T16:50:31Z (19 years ago)
From
Edo Berger at Carnegie Obs <eberger@ociw.edu>
E. Berger (Carnegie Observatories) reports:
"The position of GRB 050911 is located about 3.5 arcmin from the center of
a galaxy cluster (EDCC 493; diameter ~ 20 arcmin). Several galaxies in
this field have a redshift of about 0.165, measured in the Las Campanas
Redshift Survey (LCRS). If GRB 050911 is a short burst (as may be
indicated by the initial short duration pulses; GCN 3961), then it is
possible that it is associated with EDCC 493, and is therefore located at
z~0.16. We note that the prompt emission exhibits a second peak at t+10
to t+20 sec (GCN 3961), but this may be a softer component as observed in
GRBs 050709 and 050724."