GCN Circular 1598
Subject
GRB021004: not fading anymore?
Event
Date
2002-10-07T19:43:01Z (23 years ago)
From
Krzysztof Z. Stanek at CfA <kstanek@cfa.harvard.edu>
GRB021004: not fading anymore?
K. Z. Stanek, D. Bersier, J. Winn (Harvard-Smithsonian Center
for Astrophysics), P. Garnavich (Notre Dame) report:
R-band images of the afterglow associated with GRB 021004 (GCN 1564)
were obtained with the Fred L. Whipple Observatory 1.2m telescope on
Oct. 7 between 02:43 and 11:09 UT. The afterglow seems to have stopped
fading. We give below our last measurement from the night of Oct. 6
and our last measurement on Oct. 7
Date Time R err_R
-----------------------------
Oct 6 11:25 UT 20.08 0.05
Oct 7 11:09 UT 20.09 0.06
This could be due to the presence of a bright host galaxy, but PSF
fitting shows no residual as would be expected from an extended
source. Furthermore, such a bright host galaxy would be in conflict
with the upper limits of Wood-Vasey et al. (GCN 1572).
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