GCN Circular 20160
Subject
GRB 161108A: TSHAO optical observations
Date
2016-11-09T21:29:59Z (8 years ago)
From
Alexei Pozanenko at IKI, Moscow <apozanen@iki.rssi.ru>
E. Mazaeva (IKI), A. Kusakin (Fesenkov Astrophysical Institute), I.
Reva (Fesenkov Astrophysical Institute), A. Volnova (IKI), A. Pozanenko
(IKI) report on behalf of larger GRB follow-up collaboration:
We observed the field of GRB 161108A (Beardmore et al., GCN 20145)
with Zeiss-1000 (East) 1-m telescope of Tien Shan Astronomical
Observatory. We obtained several images in R filter starting on Nov. 08
(UT) 23:06:16. Within enhanced XRT position (Beardmore et al., GCN
20147) we detected a source coinciding with the afterglow of GRB 161014A
(Malesani et al., GCN 20146; Butler et al., GCN 20149). Preliminary
photometry of the source is following
Date UT start t-T0 Filter Exp. OT Err. UL
(mid, days) (s)
2016-11-08 23:06:16 0.83869 R 28*120 21.8 0.20 22.0
Our photometry of the afterglow might be affected by nearby galaxy
mentioned in GCN 20149 (Malesani et al.)
Photometry is based on nearby SDSS-DR9 stars (Lupton transformations):
SDSS-DR9_id R(Lupton)
J120315.88+245217.4 18.37
J120326.17+245228.7 18.71
J120318.05+245356.7 18.52
J120250.21+245354.3 18.35
J120258.81+245024.2 16.90
J120314.67+244944.0 17.06
J120321.43+244829.2 16.79