GCN Circular 19004
Subject
GRB 160131A: TSHAO optical observations
Date
2016-02-08T22:04:39Z (8 years ago)
From
Alexei Pozanenko at IKI, Moscow <apozanen@iki.rssi.ru>
E. Mazaeva (IKI), I. Reva (Fesenkov Astrophysical Institute), A. Volnova
(IKI), A. Kusakin (Fesenkov Astrophysical Institute), A. Pozanenko
(IKI) report on behalf of larger GRB follow-up collaboration:
We observed the Swift GRB 160131A (Page et al., GCN 18951) with
Zeiss-1000 (East) 1-m telescope of Tien Shan Astronomical Observatory.
We obtained several images in R filter on Feb. 06 and Feb. 07.The
optical afterglow (Page et al., GCN 18951; Yurkov et al., GCN 18952;
Guidorzi et al., GCN 18953; Xin et al., GCN 18954; Xin et al., GCN
18955; Watson et al., GCN 18956) is detected on Feb. 06 and not detected
on Feb. 07. Preliminary photometry is following
Date UT start t-T0 Filter Exp. OT Err.
(mid, days) (s)
2016-02-06 13:45:54 6.26762 R 21*300 22.40 0.3
2016-02-07 13:30:04 7.25330 R 21*300 >22.40 (3sigma)
Photometry is based on nearby USNO-B1.0 stars
USNO-B.1_id R2
0829-0078223 15.70
0829-0078147 14.56
0829-0078167 17.71
0829-0078222 18.96
0829-0078226 18.69
0829-0078129 17.62