GCN Circular 15756
Subject
GRB 140114A: optical upper limit
Date
2014-01-21T08:34:59Z (10 years ago)
From
Alina Volnova at SAI MSU <alinusss@gmail.com>
A. Volnova (IKI), R. Inasaridze (AAO), Yu. Krugly (IA KhNU), I. Slyusarev
(IA KhNU), G. Inasaridze (AAO), V. Zhuzhunadze (AAO), I. Slyusarev (IA
KhNU), I. Molotov (KIAM), A. Pozanenko (IKI) report on behalf of larger GRB
follow-up collaboration:
We observed the field of Swift GRB 140114A (Troja et al., GCN 15728) on
Jan., 15 with AS-32 (0.7m) telescope of Abastumani Observatory, and AZT-8
(0.7m) telescope of Institute of Astronomy, Kharkiv National University. We
obtained several unfiltered frames with exposures of 120 s (AS-32), and
several frames with filter R with exposure of 120 s (AZT-8). Within the
enhanced XRT circle (Beardmore et al., GCN 15733) we did not detect the
afterglow reported by Butler et al. (GCN 15732).
The details of the photometry are the following:
Telescope t_start, UT t-T0, mid, days Exptime,s Filter Uplim, 3 sigma
AS-32 00:07:23 0.54452 40*120
None 20.6
AZT-8 00:29:00 0.54720 32*120 R
20.8
The photometry is based on SDSS stars, R mag (R mag obtained using ugriz
transformations in BVRI (Lupton, 2005):
SDSS id R
J123415.64+275948.8 16.079 J123342.40+275950.2 15.120