[vsnet-grb-info 14681] GRB 140311B: Mondy optical limit
GCN Circulars
gcncirc at capella2.gsfc.nasa.gov
Wed Mar 19 05:45:35 JST 2014
TITLE: GCN CIRCULAR
NUMBER: 15995
SUBJECT: GRB 140311B: Mondy optical limit
DATE: 14/03/18 20:45:27 GMT
FROM: Alexei Pozanenko at IKI, Moscow <apozanen at iki.rssi.ru>
A.Volnova (IKI), E. Klunko (ISTP), I. Korobtsev (ISTP), M. Eselevich
(ISTP), A. Pozanenko (IKI) report on behalf of larger GRB follow-up
collaboration:
We observed the field of GRB 140311B (Racusin et al., GCN 15945) with
AZT-33IK telescope of Mondy observatory starting on Mar. 12 (UT)
20:21:16. Within enhanced Swift-XRT eror circle (Evans et al., GCN
15958) we do not detect the optical afterglow (Xu et al., GCN 15949).
Details of the photometry is following:
date UT start t-T0 Exp. Filter UpperLimit (3sigma)
(mid, days) (s)
2014-03-12 20:21:16 0.98389 30x120 R 20.2
The photometry is based on reference star SDSS-DR9, (R mag,
transformation by Lupton 2005):
N SDSS_id R(Lupton) err
J164910.91+524333.6 17.449 0.009
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