GCN Circular 15341
Subject
Fermi 403206457 / GRB 131011A: AAO optical observations
Date
2013-10-15T18:50:42Z (11 years ago)
From
Alexei Pozanenko at IKI, Moscow <apozanen@iki.rssi.ru>
A. Volnova (IKI), R. Inasaridze (AAO), G. Inasaridze (AAO), V.
Zhuzhunadze (AAO), Yu. Krugly (IA KhNU), I. Molotov (KIAM), A. Pozanenko
(IKI) report on behalf of larger GRB follow-up collaboration:
We observed the optical afterglow (Kasliwal et al. 2013, GCN 15324; Xu
et al. 2013, GCN 15325; Perley et al. 2013, GCN 15327; Sudilovsky et al.
2013, GCN 15328) of Fermi trigger 403206457 / GRB 131011A (Jenke, GCN
15331) with AS-32 (0.7m) telescope of Abastumani Observatory on Oct. 12
starting (UT) 22.32. We obtained several unfiltered images of 120 s
exposure. The optical afterglow is clearly visible in a stacked image in
coordinates (J2000) RA= 02 10 06.32 Dec= -04 24 40.5
(uncertainty of 0.33 arcseconds on both axes) which is coincide with
position reported by Kasliwal et al. (GCN 15324).
The photometry of combined image against nearby SDSS stars reported by
Xu et al. (GCN 15325), R magnitude, transformed by Lupton gri -> R
transformation is following:
Date T_start t-t0, exp, OT
(UT) mid, d s
2013-10-12 22:32:33 1.2218 26x120 21.33 +/- 0.09
A finding chart can be found at
http://grb.rssi.ru/GRB131011A/GRB131011A_AS32.png
