GCN Circular 6472
Subject
GRB 070529: MARGE Observations
Date
2007-05-30T02:38:59Z (17 years ago)
From
Heather Swan at U.of Michigan/ROTSE <hflewell@umich.edu>
H. Swan (U Mich), I. Smith (Rice), C. Akerlof (U Mich), and M.
Skinner (Boeing) report on behalf of the MARGE collaboration:
The AEOS Burst Camera (ABC) on the AEOS telescope, located at the
Maui Space Surveillance System on Haleakala, observed the fading
counterpart to GRB070529 (Swift trigger 280706 (GCN 6466)). The
images are unfiltered 10s exposures which started less than 30
minutes after the trigger and ended ~ 2 hours later.
We detect the OT first identified by S. T. Holland et al (GCN 6466).
A preliminary analysis gives a magnitude of approximately 19.41
+/-0.04 at 13:20:35 UT. We calibrated the OT to the USNO-B1.0 R2 band
magnitude of the nearby 17.35 mag star located at (J2000) RA =
283.73991, DEC = 20.657206. We find that the ABC data fades as a
power law decay with index ~-1.1.
Further analysis is in progress.