GCN Circular 5323
Subject
GRB 060714, SMARTS optical/IR afterglow observation
Date
2006-07-15T20:38:34Z (18 years ago)
From
Bethany Cobb at Yale U <cobb@astro.yale.edu>
B. E. Cobb (Yale), part of the larger SMARTS consortium, reports:
Using the ANDICAM instrument on the 1.3m telescope at CTIO, we
obtained optical/IR imaging of the error region of GRB 060714
(GCN 5311, Krimm et al.) with a mid-exposure time of 2006-07-15 01:18 UT
(~10.1 hours post-burst). Total summed exposure times amounted to
36 minutes in I and 30 minutes in J.
The afterglow of GRB 060714 (GCN 5311, Krimm et al.) is well-detected
in the I-band, but only marginally detected in J. The following
preliminary photometry was calibrated using several USNO-B1.0
stars in the I-band and several 2MASS standards in J. The
I-band error is dominated by the error in the photometric
calibration, while the error in the J-band in dominated
by the error in the afterglow measurement.
time
post-burst I magnitude J magnitude
------------------------------------------------------
10.1 hrs 20.72 +/- 0.17 19.74 +/- 0.18