GCN Circular 6547
Subject
GRB 070616: BTA optical observations
Date
2007-06-17T05:52:23Z (18 years ago)
Edited On
2024-11-18T10:10:37Z (5 months ago)
From
Alberto Castro-Tirado at Inst.de Astro. de Andalucia <ajct@iaa.es>
Edited By
Judith Racusin at NASA/GSFC <judith.racusin@nasa.gov> on behalf of Leo P. Singer at NASA/GSFC <leo.p.singer@nasa.gov>
T. Fatkhullin, V. Sokolov (SAO-RAS, Russia), E. Sonbas
(Cukurova Univ., Turkey), A. de Ugarte Postigo, M. Jelínek,
J. Gorosabel (IAA-CSIC, Spain), D. Pérez-Ramírez (Univ.
de Jaén, Spain), S. Guziy (Nikolaev St. Univ., Ukraine) and
A. J. Castro-Tirado (IAA-CSIC, Spain),
report:
"Following the detection by SWIFT of GRB 070616 (Starling
et al. GCNC 6542), we have obtained single VRI frames at the
6m BTA SAO-RAS telescope at Nizhnij Arkhyz (Russia), starting
at 23:57 UT (i.e. 7.5 hr after the event). Within the SWIFT/XRT
error box , we detect in all filters a faint (R ~ 22), reddened
point-like source. Preliminary astrometry yielded RA (J2000)
= 02 08 36.00; Dec (J2000) = +56 56 41.0 (+/- 1"), a position
very close to the USNO B-1 star reported by Kann et al. (GCNC
6545). Further observations are needed to confirm if this is the
optical afterglow to GRB 070616. "
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