GCN Circular 5651
Subject
GRB 060927: Spectroscopic redshift z=5.6
Event
Date
2006-09-29T10:30:08Z (19 years ago)
Edited On
2024-11-18T09:52:12Z (a year ago)
From
Brian Lindgren Jensen at U.of Copenhagen <brian_j@astro.ku.dk>
Edited By
Judith Racusin at NASA/GSFC <judith.racusin@nasa.gov> on behalf of Leo P. Singer at NASA/GSFC <leo.p.singer@nasa.gov>
Johan P. U. Fynbo (DARK Cosmology Centre), Pall Jakobsson (U. of
Hertfordshire), Brian L. Jensen, Jens Hjorth, Jesper Sollerman,
Darach Watson, José María Castro Cerón (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."