GCN Circular 18575
Subject
GRB 151027A: continued Mondy optical observations
Date
2015-11-10T19:10:04Z (9 years ago)
From
Alexei Pozanenko at IKI, Moscow <apozanen@iki.rssi.ru>
E. Mazaeva (IKI), E. Klunko (ISTP), A. Volnova (IKI), I. Korobtsev
(ISTP), A. Pozanenko (IKI) report on behalf of larger GRB follow-up
collaboration:
We continue observations (GCN 18559) of the Swift GRB 151027A (Maselli
et al., GCN 18478) with AZT-33IK telescope of Sayan observatory
(Mondy). We obtained images in R-filter on Nov., 4, 5, 7-9. In a
combined image obtained on Nov. 7 we clearly detect a galaxy which
coincide with the object 1513-0237216 of USNO-B1.0 catalog. The object
was also mentioned in GCN 18510 (Dichiara et al.) and GCN 18559 (Mazaeva
et al.)
The finding chart can be found in
http://grb.rssi.ru/GRB151027A/GRB151027A_20151107_AZT33IK_host.png
The afterglow (Maselli et al., GCN 18478; Zheng and Filippenko, GCN
18479) is not well detected. The afterglow might overlap with
North-East wing of the galaxy. The galaxy could be suggested as a host
galaxy of GRB 151027A.
Preliminary photometry of the galaxy is R= 20.60+/-0.04 at November, 7.
The photometry is based on nearby USNO-B1.0 stars referenced in GCN 18559.
