GCN Circular 3297
Subject
GRB 050421: Optical observations at the INT
Date
2005-04-21T07:43:55Z (19 years ago)
From
Alberto Castro-Tirado at Inst.de Astro. de Andalucia <ajct@iaa.es>
A. de Ugarte Postigo (IAA-CSIC), J. Furnes, R. Corradi (ING, La Palma),
M. Jelinek, J. Gorosabel and A. J. Castro-Tirado (IAA-CSIC Granada),
report:
"Following the detection by SWIFT/BAT of GRB 050421 (Barbier et al. GCN
Circ. 3296), we started observations at the 2.5m Isaac Newton Telescope at
Observatorio del Roque de los Muchachos in La Palma. The first 120-s image
(in the Sloan i-band filter), started on Apr 21.1858 UT (i.e. 15.7 min
after the
event). We do not see any object within the reported SWIFT/XRT position.
Further analysis of additional i-band images is in progress."
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