Skip to main content
New! Browse Circulars by Event, Advanced Search, Sample Codes, Schema Release. See news and announcements

GCN Circular 1106

Subject
Optical Observations of the field of HETE trigger #1793/GRB 011012?
Date
2001-10-12T11:30:57Z (24 years ago)
From
Paul Price at RSAA, ANU at CIT <pap@srl.caltech.edu>
P. A. Price, J. S. Bloom and D. W. Fox report on behalf of the larger
Caltech-NRAO-CARA GRB collaboration:

We have obtained second epoch images of HETE trigger #1793 with the Large
Format Camera (LFC) on the Palomar 200-inch telescope, approximately 45
minutes after the GRB.  Our R-band images cover an area approximately 26
arcminutes in radius, centered on the error box, with an estimated
limited magnitude of R ~ 23 mag, based on comparison with USNO-A2.0.

Comparison of the first aquired image (t_GRB + 12 min, GCN #1105) with
the second epoch reveals a single variable source within the field of
view (apart from several high proper motion objects), located at J2000
coordinates 2:37:18.2 42:02:56 (estimated error approximately 1 arcsec).
This source is clearly detected on the Digital Sky Survey images, and so
is likely simply a variable star and unrelated to the HETE trigger.

Further observations and analysis are underway.

This message may be cited.
Looking for U.S. government information and services? Visit USA.gov