GCN Circular 894
Subject
GRB 001105, further optical observations
Date
2000-11-30T18:33:55Z (24 years ago)
From
Alberto Castro-Tirado at LAEFF-INTA <ajct@laeff.esa.es>
J. M. Castro Ceron (ROA, San Fernando),
A. J. Castro-Tirado, IAA-CSIC (Granada) and LAEFF-INTA (Madrid),
A. Henden and F. Vrba, USNO (Flagstaff)
J. Fliri, LMU (Muenchen)
J. Greiner, AIP (Potsdam)
H. Meusinger and S. Klose, TLS (Tautenburg)
V. Mohan, Ram Sagar, S.B. Pandey (UPSO, Nainital),
on behalf of a larger collaboration,
report:
"We have obtained further imaging of 90% of the error box for GRB
001105 (Hurley et al. GCN 874), with the 1.23 and 2.2-m telescopes
at the German-Spanish Calar Alto Observatory and with the 1.0-m
telescope at the US Naval Observatory Flagstaff Station, thus
adding to the results given by Mohan et al. (CGN 875) with the 1.0-m
telescope at the U. P. State Observatory. Only the outermost eastern and western corners of the GRB error box were not covered by our images.
The summary of the observations is detailed below:
-----------------------------------------------------------------
Date (UT) Telescope filter exposure limiting
(Start) (sec) mag.
-----------------------------------------------------------------
Nov. 06.99 1.0 UPSO R 300 20.0
Nov. 08.45 1.0 NOFS R 720 20.5
Nov. 09.19 1.23 CAHA R 7 * 500 22.1
Nov. 09.22 1.23 CAHA B 600 21.5
Nov. 09.45 1.0 NOFS I 3 * 600 20.0
Nov. 30.23 2.2 CAHA R 2 * 300 22.0
-----------------------------------------------------------------
The photometric calibration was done based on the reference
stars provided by Henden (GCN 876). A comparison of the different
images reveals no fading object down to the limiting magnitudes
given in the table."
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