GCN Circular 3384
Subject
GRB 050509b: optical observations
Date
2005-05-09T06:44:52Z (19 years ago)
From
Alberto Castro-Tirado at LAEFF-INTA <ajct@laeff.esa.es>
A. de Ugarte Postigo, A.J. Castro-Tirado (IAA-CSIC Granada),
A. Eigenbrod (EPF de Lausanne), M. Jelinek, J. Gorosabel
and S. Guziy (IAA-CSIC Granada),
report:
"Following the detection by Swift-BAT of the short gamma-ray burst
GRB 050509b (Hurkett et al. GCN 3381), we have obtained
two R-band images (300s exposure time each) with the 1.2m Mercator
telescope at Roque de los Muchachos Observatory in La Palma,
starting at 04:36:02 UT (i.e. 35.88. min after the onset of
the burst). The location was observed under poor seeing conditions,
at very high airmass. We do not identify any source within
the error box provided by Swift-XRT (Kennea et al. GCN 3383) down to
magnitude 21."
This message may be cited.