GCN Circular 2674
Subject
GRB040827 optical observations
Date
2004-08-27T19:07:08Z (20 years ago)
From
Arne A. Henden at USNO/USRA <aah@nofs.navy.mil>
B. Monard (Bronberg Obs., bmonard@mweb.co.za) reports on behalf
of the AAVSO International GRB network:
Observations of the INTEGRAL error circle for GRB040827
(Mereghetti et al., GCN 2670, 2671, 2672)
were made with the Bronberg 0.30m telescope + unfiltered CCD.
Twenty-five 13-second exposures with UT midpoint of 040827.701
(5.0hrs after the burst) were stacked, with a limiting magnitude
of 20.0CR (based on USNO-A red magnitudes). No new object
is seen in a 15x15arcmin region centered on the INTEGRAL
coordinates down to approximately CR=19.5 when comparing against
a DSS2-red image.
The AAVSO International GRB network is greatful for a generous grant from
the Curry Foundation and to NASA for the financial support for the High
Energy Workshops for Amateur Astronomers.