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TITLE: GCN GRB OBSERVATION REPORT
NUMBER: 2093
SUBJECT: GRB 030329, nearby galaxies
DATE: 03/04/04 23:20:33 GMT
FROM: Peter Garnavich at U of Notre Dame <pgarnavi@miranda.phys.nd.edu>
K. Krisciunas (OCIW/CTIO), T. Matheson, K.Z. Stanek (CfA),
and P. Garnavich (Notre Dame)
We obtained spectra of four bright galaxies within 90 arcseconds
of the afterglow of GRB 030329 using the Magellan 6.5-m Clay
telescope and LDSS2 image/spectrograph. The data were taken
April 2 and 3 (UT). Emission lines of Halpha, [OIII] and [OII]
were detected in all four galaxies and their redshifts are:
Galaxy RA (2000) Dec Sep. from GRB z
A 10:44:50.5 +21:32:05 47" 0.136
B 10:44:48.7 +21:31:39 28" 0.136
C 10:44:47.9 +21:31:04 33" 0.137
D 10:44:53.6 +21:30:11 84" 0.057
The three observed galaxies closest to the burst appear to form a
small group at z=0.136 which is slightly foreground to the host
at z=0.168 (Greiner et al., GCN 2020; Caldwell et al. GCN 2053).
A finder chart for these galaxies can be found at:
http://www.nd.edu/~pgarnavi/grb030329_galaxies.jpg
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