GCN Circular 3680
Subject
GRB 050724: J-band observations
Date
2005-07-26T01:21:06Z (19 years ago)
From
Javier Gorosabel at LAEFF-INTA, Madrid <jgu@laeff.esa.es>
A. de Ugarte Postigo, J. Gorosabel, A.J. Castro-Tirado,
M. Jelinek, S. Guziy (IAA-CSIC), H.-J. Roeser (MPI Heidelberg),
A. Aguirre, S. Pedraz (CAHA), O. Bogdanov (Nikolaev State Univ.),
report:
"We have observed the field of GRB 050724 (GCN Circ. 3665) in the
J-band with the 3.5m Calar Alto telescope (mean observing epoch July
25.86 UT, Texp=45 min). A comparison with the images taken yesterday
with the same telescope (mean observing epoch July 24.87 UT, Texp=15
min) did not reveal any variable source in the reported XRT error
boxes (GCN Circ. 3678, 3665, 3669) down to J~20. At first epoch we
note the presence of a possible object on our detection limit (J~20.5)
located at RA(J2000)=16:24:45.02, DEC(J2000)=-27:32:29.1. However, the
worse seeing on July 25.86 UT prevented us from confirming its
potential variability."
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