GCN Circular 3639
Subject
GRB 050717: LCO near-IR observations
Event
Date
2005-07-18T05:25:21Z (20 years ago)
From
Edo Berger at Carnegie Obs <eberger@ociw.edu>
E. Berger and M. Lopez-Morales (Carnegie) report on behalf of a larger
collaboration:
"We observed the XRT error circle (GCN 3636) of GRB 050717 (GCN 3633) with
the Wide-Field Infrared Camera on the du Pont 100-inch telescope at Las
Campanas Observatory on 2005 July 19.01 UT (37.7 hours after the burst) in
K-band. A total of 810 seconds were obtained in good seeing conditions.
Within the 6-arcsec radius XRT error circle we find 4 sources of which one
is also visible in 2MASS K-band images. The other three sources have
magnitudes of 18.1, 18.7, and 19.2 in comparison to several 2MASS stars;
the 3-sigma limiting magnitude of our image is about 19.4. At this point
we do not have any evidence for fading in any of the three sources.
Further observations are planned."