[vsnet-grb-info 8073] GRB 090529: CrAO optical upper limit
GCN Circulars
gcncirc at capella.gsfc.nasa.gov
Sat Jul 4 07:28:02 JST 2009
TITLE: GCN CIRCULAR
NUMBER: 9612
SUBJECT: GRB 090529: CrAO optical upper limit
DATE: 09/07/03 22:27:56 GMT
FROM: Alexei Pozanenko at IKI, Moscow <apozanen at iki.rssi.ru>
D. Shakhovkoy, V. Rumyantsev (CrAO), A. Pozanenko (IKI) report on behalf of
larger GRB follow-up collaboration:
We observed the field of the Swift GRB 090529 (Sakamoto et al. GCN 9430)
with AZT-11 telescope of CrAO between (UT) May 29 18:41 -- 19:42 under poor
weather conditions. We do not detect optical afterglow (Xin et al. GCN
9431). Upper limit of a stacked image based on USNO-B1.0 star (RA=14 09
47.65 Dec=+24 27 44.30) assuming I=17.54 is following:
T0+ Filter, Exposure, mag.
(d) (s)
0.2075 I 20x180 > 20.3
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