GCN Circular 11636
Subject
GRB 110205A: PAIRITEL NIR Afterglow Detection
Event
Date
2011-02-05T06:30:31Z (15 years ago)
From
Adam Morgan at U.C. Berkeley <qmorgan@gmail.com>
A. N. Morgan, C. R. Klein, and J. S. Bloom (UC Berkeley) report:
We observed the field of GRB 110205A (Beardmore et al., GCN 11629)
with the 1.3m PAIRITEL located at Mt. Hopkins, Arizona. Observations
began at 2011-Feb-05 05h14m03s UT, ~3.2 hours after the Swift trigger.
In mosaics (effective exposure time of 0.50 hours) taken
simultaneously in the J, H, and Ks filters, we detect a source at the
position of the optical afterglow (Klotz et al., GCN 11630; Schaefer
et al., GCN 11631; Mundell et al., GCN 11633).
The preliminary photometry yields:
post burst
t_mid (hr) exp.(hr) filt mag m_err
3.59 0.50 J 16.74 0.05
3.59 0.50 H 15.81 0.05
3.59 0.50 Ks 15.19 0.07
All magnitudes are given in the Vega system, calibrated to 2MASS. No
correction for Galactic extinction has been made to the above reported
values. Observations are continuing.