GCN Circular 1183
Subject
GRB 011130: Magellan spectroscopy
Event
Date
2001-12-08T00:19:28Z (25 years ago)
From
Saurabh Jha at Harvard-Smithsonian CfA <sjha@cfa.harvard.edu>
S. Jha, R. P. Kirshner, T. Matheson (CfA), P. M. Garnavich (Notre Dame),
G. P. Monnelly, R. K. Vanderspek and G. R. Ricker (MIT) report:
We obtained a spectrum of the optical counterpart to the radio
source (GCN 1173) that is a possible afterglow to GRB 011130 (GCN
1179) with the Magellan 6.5m Baade telescope (+ LDSS2) on
Dec. 7.15 (UT). Four 1200s exposures have a resolution of 1.2 nm
and cover the wavelength range 400 to 800 nm. The spectrum of the
source reported on GCN 1179 is dominated by galaxy light. A
strong calcium break is seen at 600 nm providing a redshift of
z=0.50. No significant [OII] is detected. The brighter galaxy 4"
east was also placed on the slit and has the same redshift.
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