GCN Circular 15806
Subject
GRB 140206A: Liverpool Telescope optical afterglow observations
Date
2014-02-08T09:59:29Z (10 years ago)
From
Drejc Kopac at Math Phys U,Slovenia <drejc.kopac@fmf.uni-lj.si>
D. Kopac, A. Gomboc (U. Ljubljana), C. Guidorzi (U. Ferrara), A.
Melandri (INAF-OAB), I. A. Steele, C. G. Mundell (LJMU), on behalf of a
large collaboration report:
The 2-m Liverpool Telescope automatically observed Swift-INTEGRAL-Fermi
GRB 140206A (Lien et al., GCN 15784; Gotz et al., GCN 15785), starting
at 07:19:30 UT (~2.2 min after the burst trigger).
We clearly detect the fading optical afterglow at the position reported
by Oksanen et al. (GCN 15786). In our first 10 sec frame, we estimate
the magnitude r' = 14.97 +- 0.02 at t_mid = 135 sec since the Swift/BAT
trigger time. The magnitude is calibrated against nearby SDSS stars.