GCN Circular 11324
Subject
GRB 101008A: SAO RAS optical observations
Event
Date
2010-10-09T01:56:35Z (15 years ago)
From
Vladimir Sokolov at SAO RAS <sokolov@sao.ru>
A. S. Moskvitin, T. A. Fatkhullin, A. V. Zyazeva
report on behalf of a larger collaboration:
We have observed the field of the GRB 101008A (Baumgartner et al.,
GCN#11318, GCN#11319; Beardmore et al., GCN#11321) with the 1m
telescope Zeiss-1000 of SAO RAS, Russia. The observations were carried
out in Rc band on October, 8.763 -- 8.800 UT (1.581 -- 2.484 hours
after the trigger).
We have detected three possible candidates of the OT near the enhanced
XRT error box, which are absent in the DSS R-band image.
A comparison of the DSS and our images is demonstrated at
ftp://ftp.sao.ru/pub/grb/GRB101008A/GRB101008A.jpeg
We have measured the R magnitudes of these three objects according
to R2 = 16.33 of the USNO-B1.0 star 1270-0570798:
S1 R = 20.84 +/- 0.04
S2 R = 21.03 +/- 0.06
S3 R = 21.01 +/- 0.05
All the errors are formal and they do not include the errors of
the USNO-B1.0 to Johnson-Cousins photometric system transformation.
This message may be cited.