GCN Circular 1142
Subject
GRB 011030: K-band observations
Date
2001-11-15T12:27:51Z (23 years ago)
From
Sylvio Klose at TLS Tautenburg <klose@tls-tautenburg.de>
S. Klose, B. Stecklum, A. Zeh (Thueringer Landessternwarte Tautenburg),
O. Fischer (Universitaets-Sternwarte Jena),
U. Thiele (Calar Alto observatory, Spain),
R. Neuhaeuser, N. Huelamo,
(Max-Planck-Institut fuer Extraterrestrische Physik, Garching),
J. Greiner (AIP Potsdam),
A. Castro-Tirado (LAEFF-INTA, Madrid, and IAA-CSIC, Granada),
N. Masetti, E. Palazzi (ITeSRE, CNR, Bologna),
E. Pian (Oss. Astron. Trieste),
report:
The error circle of the X-ray transient 011030 (Gandolfi et al., GCN
#1118) was imaged with the Calar Alto 3.5-m telescope on Oct. 30,
18:32 UT - 19:33 UT (i.e., about 12 hours after the burst trigger)
using the near-infrared camera Omega Cass in the polarimetric
mode. The limiting magnitude in the central part of the K'-band image
(mosaic) is about K'=19.5 after adding all frames taken at different
position angles of the wire-grid polarizer. Since standard stars are
not yet available we estimate the error of this magnitude limit to +/-
0.5 mag. The combined image covers about 90% of the revised error
circle (in 't Zand et al., GCN #1123).
At the position of the radio transient reported by Taylor et al. (GCN
#1136) no source is detected (see also Hammell et al., #GCN 1126).
We do not detect the I-band source reported by Halpern et al. (GCN
#1139).
This message is quotable.