GCN Circular 7517
Subject
GRB 080319C: Gemini-North spectroscopic redshift
Date
2008-03-25T18:37:49Z (16 years ago)
From
Klaas Wiersema at U of Leicester <kw113@star.le.ac.uk>
K. Wiersema, N. Tanvir (University of Leicester), P. Vreeswijk, J. Fynbo
(DARK Cosmology Centre), R. Starling, E. Rol (Leicester) and P. Jakobsson
(Hertfordshire) report on behalf of a large collaboration:
We observed the afterglow of GRB 080319C (GCN 7442) with Gemini North,
using the GMOS-N instrument. We took spectra using the B600 grism
(exposure time 4 x 900s) in bad weather conditions: exposures were taken
through holes in the cloud deck. Observations started at 14:51 UT on
March 19th.
The spectrum shows several absorption lines of C IV, Al II, Si II, Al III,
Mg I and the CrII / ZnII blend. From these we find the redshift z = 1.95.
We are very grateful to the Gemini staff, in particular Paul Hirst, for
executing these observations.