GCN Circular 26036
Subject
GRB 191019A: TSHAO optical observations, probable afterglow and host galaxy
Date
2019-10-19T18:55:20Z (5 years ago)
From
Alexei Pozanenko at IKI, Moscow <apozanen@iki.rssi.ru>
I. Reva (FAPHI), A. Pozanenko (IKI), M. Krugov (FAPHI), S. Belkin (IKI),
E. Mazaeva (IKI), A. Volnova (IKI) report on behalf of IKI-GRB-FuN:
We observed the field of GRB 191019A (Simpson et al. GCN 26031) with
Zeiss-1000 1-m telescope of Tien Shan Astronomical Observatory starting
on Oct. 19 (UT) 15:26:32, i.e. 14 minutes after GRB trigger. Within
XRT error circle (Evans et al., GCN 26034) we found only one source
which is presented in catalogs. Preliminary photometry of the source
is following.
Date UT start t-T0 Filter Exp. OT Err.
(mid, days) (s)
2019-10-19 15:26:32 0.013877 R 720 18.37 0.03
The photometry is based nearby USNO-B1.0 stars.
The brightness of the catalogued source is R2(USNO-B1.0 340.024514480) =
19.36 and r'(Pan-STARRS 0726-1153339) = 19.30. The source is probably a
host galaxy of GRB 191019A and we suggest the afterglow of the source
on a top of the host galaxy.