GCN Circular 14365
Subject
GRB 130408A - VLT/X-shooter redshift determination
Event
Date
2013-04-09T01:47:22Z (13 years ago)
From
Jens Hjorth at U.Copenhagen <jens@dark-cosmology.dk>
J. Hjorth (DARK), A. Melandri (INAF-OAB), D. Malesani (DARK),
T. Kruehler (DARK), and D. Xu (DARK) report on behalf of a
larger collaboration:
We observed the afterglow of GRB 130408A (Lien et al. GCN 14361;
Melandri et al. GCN 14362; Siegel et al. GCN 14363) with the
X-shooter spectrograph on the ESO VLT, beginning approximately
1 h 55 min after the BAT trigger.
We detect damped Ly-alpha absorption, Ly-alpha forest, the
Lyman break, and numerous metal lines consistent with
a redshift of 3.758.
We thank Maria Teresa Ruiz, Avril Day-Jones, Cedric Ledoux,
Leo Rivas, Alex Correa, and Lorenzo Monaco for conducting
the observations.