GCN Circular 19201
Subject
GRB 160313A: Mondy optical upper limit
Date
2016-03-16T20:22:15Z (8 years ago)
From
Alexei Pozanenko at IKI, Moscow <apozanen@iki.rssi.ru>
E. Mazaeva (IKI), A. Volnova (IKI), E. Klunko (ISTP), I. Korobtsev
(ISTP), A. Pozanenko (IKI) report on behalf of larger GRB follow-up
collaboration:
We observed the field of the GRB 160313A (D'Ai et al., GCN 19171) with
AZT-33IK telescope of Sayan observatory (Mondy) starting on March, 13
(UT) 16:39:40. We do not detect any source within enhanced Swift-XRT
position (Goad et al., GCN 19174). Preliminary photometry of the
combined image is following
Date UT start t-T0 Filter Exp. UpperLimit (3 sigma)
(mid, days) (s)
2016-03-13 16:39:40 0.60586 R 30*120 23.6
Photometry is based on nearby SDSS-DR9 stars, Lupton transformations into R.
The nearest source to the enhanced XRT position is 5.5 arcsec East, in
coordinates (J2000) 12:15:11.86 +57:17:00.0 with uncertainty of 0.5
arcsec in both coordinates. The source magnitude is R=23.3+/-0.2. The
source is not presented in SDSS-DR9 but barely visible in SDSS r-image.