GCN Circular 5278
Subject
GRB 060105: Upper limit on Host Galaxy
Event
Date
2006-06-27T18:49:53Z (20 years ago)
From
Alexander Kann at TLS Tautenburg <kann@tls-tautenburg.de>
D. A. Kann (Thueringer Landessternwarte Tautenburg) and S. Manohar (USC,
Los Angeles), report:
We observed the field of GRB 060105 (Ziaeepour et al., GCN 4429) with the
Tautenburg 1.34m Schmidt telescope under good observing conditions. We
obtained 6 x 600 sec images in the Rc filter for a total integration time
of 60 minutes. The mean observation time was June 27.9288 UT, which is
172.7 days after the burst. We determine the zero point of the image in
comparison with nine unsaturated and isolated stars of the USNOB1.0
catalog. Astrometry is also performed against the USNOB1.0 catalog.
At the refined position of the X-ray afterglow (Godet et al., GCN 4433),
we do not detect any sources. The 2 sigma limiting magnitude of the image
is Rc=23, but the position of the afterglow is affected by the PSF of
several nearby bright stars. We set a limiting magnitude of Rc=22.5 for
any source at this position. This magnitude is not corrected for the
moderate foreground extinction, E(B-V)=0.171.
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