[vsnet-grb-info 11122] GRB 111107A: Gemini-South Redshift
GCN Circulars
gcncirc at capella2.gsfc.nasa.gov
Mon Nov 7 15:31:57 JST 2011
TITLE: GCN CIRCULAR
NUMBER: 12537
SUBJECT: GRB 111107A: Gemini-South Redshift
DATE: 11/11/07 06:31:01 GMT
FROM: Ryan Chornock at Harvard <rchornock at cfa.harvard.edu>
R. Chornock, E. Berger (Harvard), and D. Fox (Penn St.) report:
We obtained spectroscopy of the optical afterglow of GRB 111107A (Siegel
et al., GCN 12534; LaCluyze et al., GCN 12535; Kruehler et al., GCN
12536) using GMOS-South on the Gemini-South 8-m telescope. Observations
began at 05:05 UT (4.2 hrs after the BAT trigger). Inspection of the
first two exposures (range 4160-8140 Angstroms) reveals a damped
Lyman-alpha absorber as well as narrow absorption lines of C IV, Al II,
and C II at a common redshift of 2.893.
More information about the vsnet-grb-info
mailing list