GCN Circular 17695
Subject
GRB 150413A: Khureltogot optical observations
Date
2015-04-14T02:02:12Z (9 years ago)
From
Alexei Pozanenko at IKI, Moscow <apozanen@iki.rssi.ru>
S. Schmalz (AIP), N. Tungalag (Research Center of Astronomy and Geophysics
MAS), A. Pozanenko (IKI), E. Mazaeva (IKI), A. Volnova (IKI), I. Molotov
(KIAM), report on behalf of larger GRB follow-up collaboration:
We observed the field of the GRB 150413A (Markwardt et al., GCN 17688;
Serino et al., GCN 17691) with ORI-40 telescope of Khureltogot observatory
starting on Apr., 13 (UT) 14:08:52 and finishing on Apr. 13 (UT) 20:08:39.
The afterglow (Ivanov et al., GCN 17689, Tyurina et al., GCN 17690,
Schmalz et al., GCN 17692, Xu et al., GCN 17693, Klose et al., GCN 17694)
is detected up to the end of our observations. Preliminary light curve
obtained for single unfiltered images and calibrated against nearby
USNO-B1.0 stars (R2 mags) can be found in
http://grb.rssi.ru/GRB150413A/GRB150413A_ORI40_lc.jpg
In particular, our photometry on Apr., 13 (UT) 19:21:35 R=17.2+/-0.1 is
compatible with photometry at (UT) 19:23 reported by Klose et al. (GCN
17694).