GCN Circular 9561
Subject
GRB 090621B: I-band observations from 1.23m CAHA
Date
2009-06-22T20:05:29Z (15 years ago)
From
Javier Gorosabel at IAA-CSIC <jgu@iaa.es>
J. Gorosabel (IAA-CSIC), P. Kubanek (GACE and IAA-CSIC), S. Mottola
(DLR), U. Carsenty (DLR), A. Levan (U. Warwick), M. Jelinek (IAA-
CSIC), A.J. Castro-Tirado (IAA-CSIC), A. de Ugarte Postigo (ESO, INAF/
OAB), report on behalf of a larger collaboration:
"Following the detection of the short-hard GRB 090621B by SWIFT
(Curran et al. GCNC 9545) we carried out I-band observations with the
1.23m telescope at Observatory of Calar Alto. The observations were
done on June 22.094-22.161 UT (4.14-5.75 hours post burst) with a
total exposure time of 22x240s. The candidates reported by Levan et
al. (GCNC 9547) and Galeev (GCNC 9549) are preliminarily detected at
I~22.5 and I~20.6, respectively, against USNO-B field stars."