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GCN Circular 7444

Subject
VLT/UVES redshift of GRB 080319B
Date
2008-03-19T13:34:33Z (16 years ago)
From
Paul Vreeswijk at Dark Cosmology Centre,U.of Copenhagen <pmv@dark-cosmology.dk>
P.M. Vreeswijk (DARK), A. Smette (ESO), D. Malesani, J.P.U. Fynbo, Bo
Milvang-Jensen (DARK), P. Jakobsson (U. Hertfordshire), A.O. Jaunsen
(U. Oslo) and C. Ledoux (ESO) report on behalf of a larger
collaboration:

We observed the optical afterglow of GRB 080319B (Racusin et al., GCN
7427) with the Ultraviolet and Visual Echelle Spectrograph (UVES)
mounted at ESO's VLT Kueyen. Observations were performed in
rapid-response mode starting on 2008 March 19 at 07:18 UT.

The highest redshift system that we identify based on the MgII doublet
and various other features has z=0.937, the presumed redshift of GRB
080319B. Another system is identified at z=0.530.

We acknowledge excellent support from the observing staff at Paranal,
in particular Swetlana Hubrig and Elena Mason.
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