[vsnet-grb-info 8697] GRB 091127: CAHA 1.23m I-band observations
GCN Circulars
gcncirc at capella.gsfc.nasa.gov
Sat Nov 28 12:27:01 JST 2009
TITLE: GCN CIRCULAR
NUMBER: 10198
SUBJECT: GRB 091127: CAHA 1.23m I-band observations
DATE: 09/11/28 03:25:55 GMT
FROM: Javier Gorosabel at IAA-CSIC <jgu at iaa.es>
J. Gorosabel (IAA-CSIC), A. de Ugarte Postigo (INAF/OAB), V. Terron
(IAA-CSIC), M. Fernandez (IAA-CSIC), P. Kubanek (IAA-CSIC), M. Jelinek
(IAA-CSIC), report on behalf of a larger collaboration:
"We have detected the GRB 091127 optical afterglow (Smith et al. GCNC
10192; Immler et al. GCN 10193) by means of a single I-band frame
(Texp=120s) taken with the CAHA 1.23m Telescope. The observations,
carried out on Nov. 28.03862-28.04000 UT (~1.5 hours post burst) under
poor weather conditions, yielded a preliminary I-band magnitude of
I~16.4, assuming I=13.62 for the USNO-B1.0 star located at (RA,DEC) =
(02:26:21.063,-18:57:19.02; J2000)."
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