GCN Circular 7891
Subject
GRB080607: optical observation
Date
2008-06-21T12:16:51Z (16 years ago)
From
Alexei Pozanenko at IKI, Moscow <apozanen@iki.rssi.ru>
V. Rumyantsev (CrAO), A. Pozanenko (IKI) report on behalf of larger GRB
follow-up collaboration:
We observed the field of Swift GRB 080607 (Mangano et al., GCN 7847) on
June 07 between (UT) 19:54 - 21:05 with Zeiss-1000 (Simeiz) telescope of
CrAO observatory. We detect faint optical source in coordinates
RA(J2000): 12 59 47.24
Dec(J2000): +15 55 08.74
with uncertainties of 0.5".
The source looks extended. The source is within enhanced XRT position
(Osborne et al., GCN 7853), however the source position is apart ~2" from
coordinates reported for the afterglow (Rujopakarn et al., GCN 7846, Mangano
et al., GCN 7847, Chornock et al., GCN 7856).
It is not clear is the source of a putative host galaxy + afterglow or the
source is not related.
A photometry is obtained in comparison with nearby USNOB-1.0 star 12 59
45.62 +15 54 19.10 assuming R=17.91:
T0+ Exposure R_mag UL
(mid)
0.5985 d 35x120 s 22.00 +/- 0.25 22.5
The message may be cited.