GCN Circular 11583
Subject
GRB 110119A: PAIRITEL NIR Afterglow Detection
Date
2011-01-20T03:43:24Z (13 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 110119A (Troja et al., GCN 11581) with the 1.3m
PAIRITEL located at Mt. Hopkins, Arizona. Observations began at 2011-Jan-20
01h24m08s UT, ~3.1 hours after the Swift Trigger, under high airmass (~1.9),
and continued until the source set beyond telescope limits. In mosaics
(effective exposure time of 0.64 hours) taken simultaneously in the J, H,
and Ks filters, we detect a source at the UVOT position (Troja et al., GCN
11581).
The preliminary photometry yields:
post burst
t_mid (hr) exp.(hr) filt mag m_err
3.78 0.64 J 17.9 0.2
3.78 0.64 H 17.0 0.2
3.78 0.64 Ks 16.2 0.2
All magnitudes are given in the Vega system, calibrated to 2MASS. No
correction for Galactic extinction has been made to the above reported
values.