GCN Circular 18767
Subject
V404Cyg Swift Trigger 668097: AbAO optical observations
Date
2015-12-30T10:31:22Z (9 years ago)
From
Alexei Pozanenko at IKI, Moscow <apozanen@iki.rssi.ru>
E. Mazaeva (IKI), R. Inasaridze (AbAO), A. Volnova (IKI), V. Ayvazian
(AbAO), I. Molotov (KIAM), A. Pozanenko (IKI) report on behalf of larger GRB
follow-up collaboration:
We observed V404 Cyg after Swift BAT trigger 668097 (Barthelmy et al., GCN
18716) with AS-32 (0.7m) telescope of Abastumani Observatory. Observations
started on Dec., 28 (UT) 16:19:10. We obtained several unfiltered images of
60 s exposure. The source has a flare during our observations, the maximal
brightness of the source during our observations is 15.5m at (UT) 16:22:39.
It is also apparent that we observed only a small episode of new flaring
activity of V404 Cyg.
Preliminary light curve of the V404 Cyg can be found in
http://grb.rssi.ru/V404_Cyg/v404Cyg_AAO_20151228_lc.png
Photometry is based on following USNO-B1.0 stars
USNO-B.1_id R2
1238-0434779 13.52
1238-0434864 14.12