GCN Circular 22403
Subject
GRB 180205A: AbAO optical observations
Date
2018-02-08T07:52:59Z (6 years ago)
From
Alexei Pozanenko at IKI, Moscow <apozanen@iki.rssi.ru>
E. Mazaeva (IKI), A. Pozanenko (IKI), A. Volnova (IKI), R. Inasaridze
(AbAO), V. Ayvazian (AbAO), O. Kvaratskhelia (AbAO), G. Inasaridze
(AbAO), I. Molotov (KIAM), report on behalf of larger GRB follow-up
collaboration:
We observed the field of GRB 180205A (Evans et al., GCN 22381) with
AS-32 (0.7m) telescope of Abastumani Observatory starting on Feb., 06
(UT) 23:53:51. We obtained several unfiltered images starting on Feb.
05 (UT) 12:54:29. The afterglow of GRB 180205A (Evans et al., GCN
22381; Zheng et al. GCN 22382; Bolmer et al. GCN 22383; Tanvir et al.
GCN 22384; Volnova et al. GCN 22387; Falcon et al. GCN 22380; Xin et al.
22392; Zhu et al. 22395; Emery et al. 22396; Im et al., GCN 22397) is
clearly detected in a stacked image. Preliminary photometry is following.
Date UT start t-T0 Filter Exp. OT Err. UL
(mid, days) (s)
2018-02-06 17:09:23 1.54515 CR 24*60 20.32 0.10 21.2
The photometry is based on several nearby SDSS DR9 stars
SDSS_id R_Lupton
J082719.98+113324.0 16.206 0.013
J082717.26+113400.0 16.092 0.013
J082715.06+113230.6 15.553 0.013