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GCN Circular 11030

GRB 100725B: TELMA optical observation
2010-07-30T16:26:49Z (14 years ago)
Sergey Guziy at IAA CSIC <>
J. C. Tello, R. S��nchez, M. Jel��nek, P. Kub��nek, S. Guziy,
A. J. Castro-Tirado (IAA-CSIC Granada) on behalf of a
larger collaboration report:

"Following the detection of GRB 100725B by Swift (Baumgartner et al.
GCNC 10983), we have obtained optical images with the 0.6m TELMA robotic
telescope at the BOOTES-2 station located in Southern Spain.

At the position of the X-ray afterglow detected by SWIFT/XRT (Goad et
al. GCNC 10986) we do not detect any optical source down to i' < 19 in
the co-added 187 images (60-s each, using an i' band filter, at 20:41 UT,
i.e. 9.3-hr after the onset of the burst).

This message can be quoted.
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