GCN Circular 10656
Subject
Swift Trigger 420256: BOOTES-2 observations
Date
2010-04-23T07:16:32Z (15 years ago)
From
Javier Gorosabel at IAA-CSIC <jgu@iaa.es>
A. de Ugarte Postigo (INAF-OAB), J.Gorosabel (IAA-CSIC), A.J. Castro-
Tirado (IAA-CSIC), P. Kubanek (Univ. Valencia, IAA-CSIC), M. Jelinek
(IAA-CSIC) report on behalf of a larger collaboration:
"We have imaged the field of Swift trigger 420256 (Hoversten et al.,
GCNC 10654) using the 0.6m TELMA telescope (BOOTES-2). Observations
were obtained through a clear filter and began at 2:46 UT (126s after
the burst). In a 1724s exposure with mid time 03:13UT (1741s after the
bursts) we do not detect any new source within the BAT error box down
to a 3-sigma limiting magnitude of R~18, as compared to the USNO-B1.0."