GCN Circular 8332
Subject
GRB 081007, SMARTS optical/IR afterglow observations
Date
2008-10-07T06:58:55Z (16 years ago)
From
Bethany Cobb at Yale U <cobb@astro.yale.edu>
B. E. Cobb (UC Berkeley) reports:
Using the ANDICAM instrument on the 1.3m telescope at CTIO, we
obtained optical/IR imaging of the error region of GRB 081007
(GCN 8330, Baumgartner et al.), starting 23 minutes post-burst
in BVRIJHK.
In the R-band, the GRB afterglow (GCN 8330, Baumgartner et al.
& GCN 8331, Covino et al.) appears to fade by approximately 0.6 magnitudes
between 23 minutes and 56 minutes post-burst, indicating
a decay rate of alpha = -0.6 (where afterglow flux is proportional to
t^alpha).
Observations of this burst are continuing.