GCN Circular 10767
Subject
GRB 100514A: optical afterglow confirmation
Event
Date
2010-05-16T21:42:21Z (15 years ago)
From
Alexei Pozanenko at IKI, Moscow <apozanen@iki.rssi.ru>
V. Rumyantsev (CrAO), A. Pozanenko (IKI) report on behalf of larger GRB
follow-up collaboration:
We observed the field of the Swift GRB 100514A (Markwardt et al. GCN 10759)
with Shajn telescope of CrAO between (UT) May 15 00:04:38 and 15T01:10:33
under good weather conditions and mean seeing of 2 arcsec. Inside the
enhanced XRT error circle (Goad et al. GCN 10762) we detect the object with
coordinates
RA(J2000): 21 55 17.46
Dec(J2000): +29 09 36.13
with uncertainties of 0.3" in each coordinates.
The photometry of the object based on USNO-B1.0 star 1191-0563318 (J2000)
RA= 21:55:19.80 Dec= +29:10:10.0 (assuming R2=19.25) is following:
T0+ Filter, Exposure, mag.
(mid, d) (s)
0.2390 R 57x60 23.2 +/- 0.2
The afterglow candidate reported by Marshall and Markwardt (GCN 10766) is
fading by ~2 mag. within 5.7 hours, and hence we confirm the afterglow.