GCN Circular 14996
Subject
GRB 130702A: Maidanak optical observations
Event
Date
2013-07-09T10:46:20Z (13 years ago)
From
Alexei Pozanenko at IKI, Moscow <apozanen@iki.rssi.ru>
A. Pozanenko (IKI), A. Volnova (IKI), O. Burhonov (UBAI), I. Molotov (KIAM)
report on behalf of larger GRB follow-up collaboration:
We continue observations of the afterglow (Singer et al., GCN 14967) of GRB
130702A (Cheung et al., GCN 14971; Collazzi et al., GCN 14972) with
AZT-22 telescope of Maidanak observatory. A preliminary photometry of
combined images is based on two SDSS stars suggested by Schulze et al. (GCN
14978) and used in our previous observations (Pozanenko et al, GCN 14988)
T_start T0+ Filter, Exposure, OT
(UT) (mid, d) (s)
2013-07-05T16:25:11 3.6592 R 6x600 19.61+/-0.02
2013-07-06T16:20:12 4.6540 R 6x600 19.71+/-0.03
2013-07-07T16:45:34 5.6717 R 6x600 19.83+/-0.04
2013-07-08T16:49:14 6.6759 R 6x300 19.81+/-0.05
The light curve is based on the photometry of this CGN circular and our
previous observations (Pozanenko et al, GCN 14988) and can be found at
http://grb.rssi.ru/GRB130702A/GRB130702A_MAO_R_lc.png
One can see flattening of the lc after 4 days (initially reported by Butler
et al., GCN 14993) and possible re-brightening on 6.6 days which can
confirm re-brightening of the afterglow (Schulze et al., GCN 14994) and
emerging supernova.