GCN Circular 13143
Subject
GRB 120326A: PAIRITEL NIR Observations
Date
2012-03-27T18:22:24Z (12 years ago)
From
Adam Morgan at U.C. Berkeley <qmorgan@gmail.com>
A. N. Morgan (UC Berkeley) reports:
We observed the field of GRB 120326A (Siegel et al., GCN 13105) with the
1.3m PAIRITEL located at Mt. Hopkins, Arizona. Observations began at
2012-03-27 09:25:19 UT, ~32.1 hours after the Swift Trigger. In mosaics
(effective exposure time of 1.31 hours) taken simultaneously in the J, H,
and Ks filters, we detect a source at the optical afterglow location (Klotz
et al., GCN 13107; LaCluyze et al., GCN 13109; Guidorzi et al., GCN 13111;
Walker et al., GCN 13112; Kuin et al., GCN 13114; Im et al., GCN 13117;
Hentunen et al., GCN 13119; Urata et al., GCN 13121; Zhao et al., GCN
13122; Soulier, GCN 13126; Jang et al., GCN 13139; Quadri et al., GCN
13142).
The preliminary photometry yields:
post burst
t_mid (hr) exp.(hr) filt mag m_err
33.58 1.31 J 17.5 0.1
33.58 1.31 H 16.7 0.1
33.58 1.31 Ks 16.0 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. Further observations are ongoing.