GCN Circular 5651
Subject
GRB 060927: Spectroscopic redshift z=5.6
Date
2006-09-29T10:30:08Z (18 years ago)
From
Brian Lindgren Jensen at U.of Copenhagen <brian_j@astro.ku.dk>
Johan P. U. Fynbo (DARK Cosmology Centre), Pall Jakobsson (U. of
Hertfordshire), Brian L. Jensen, Jens Hjorth, Jesper Sollerman,
Darach Watson, Jos� Mar�a Castro Cer�n (DARK Cosmology Centre),
Paul Vreeswijk (ESO), Michael I. Andersen (Potsdam) report on
behalf of a larger collaboration:
"Using FORS1 on the ESO Very Large Telescope we obtained a 3x30 min
spectrum of the afterglow of GRB 060927 (GCNs #5627, 5629) on Sep 28.1.
We detect a sharp continuum break at 8070 A which we interpret as the
onset of the Lyman-alpha forest. Hence the redshift of GRB 060927 is
z=5.6.
We have placed a finding chart and an image of the 2d-spectrum here:
http://www.astro.ku.dk/~brian_j/grb/grb060927.589/
We thank the Paranal staff for excellent support."