GCN Circular 17093
Subject
GRB 141121A: Mondy optical observations
Event
Date
2014-11-24T16:56:28Z (12 years ago)
From
Alexei Pozanenko at IKI, Moscow <apozanen@iki.rssi.ru>
E. Mazaeva (IKI), E. Klunko (ISTP), A. Volnova (IKI), M. Eselevich
(ISTP), I. Korobtsev (ISTP), A. Pozanenko (IKI) report on behalf of
larger GRB follow-up collaboration:
We observed the field of GRB 141121A (Lien et al., GCN 17075) with
AZT-33IK telescope of Sayan observatory (Mondy) on Nov., 23 starting on
(UT) 20:57:39. We obtained several images in R-filter. In a combined
image we clearly detect optical afterglow (Tanga et al., GCN 17078;
Perley et al., GCN 17081).
A preliminary photometry is based on nearby SDSS stars:
date UT start t-T0 Filter Exp. OT OT_err
(mid, days) (s)
2014-11-23 20:57:39 2.74025 R 39*120 20.53 0.04
We confirm re-brightening of the afterglow reported early (Watson et al.
GCN 17090; Kuroda et al. GCN 17091; Dichiara et al. GCN 17092).