GCN Circular 1154
Subject
GRB011121: continued decay
Date
2001-11-23T07:33:52Z (23 years ago)
From
Krzysztof Z. Stanek at CfA <kstanek@cfa.harvard.edu>
L. Wyrzykowski (Warsaw University Observatory) and K. Z. Stanek
(Harvard-Smithsonian CfA) report:
Additional R-band observations of the GRB011121 OT carried out with
the OGLE 1.3m telescope indicate continuing fading behavior of the
afterglow (GCNs 1151, 1152):
HJD-2450000 UT R_c exp
2236.71036 011123 05:06 20.35+-0.07 3x600 sec
This measurement might be somewhat contaminated by the possible host
galaxy. Combined with the last night data, this is consistent with a
power-law decay with an index of -1.55, similar to -1.65 obtained from
first night data alone (GCN 1152). The R-band magnitudes are relative
to star "A" of Wyrzykowski et al. (see finding chart at
http://cfa-www.harvard.edu/cfa/oir/Research/GRB/).
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