GCN Circular 38916
Subject
EP250111a: KAIT optical observations
Date
2025-01-12T05:08:43Z (a month ago)
From
Weikang Zheng at UC Berkeley <weikang@berkeley.edu>
Via
email
WeiKang Zheng (UCB), Xuhui Han (NAOC), Pinpin Zhang (NAOC) and
Alexei V. Filippenko (UCB) report on behalf of the KAIT GRB team:
The 0.76-m Katzman Automatic Imaging Telescope (KAIT), located at
Lick Observatory, observed the field of EP250111a (Zhao et al.,
GCN 38905) starting at 02:53:32 UT on 2025-01-11, ~1.55 hr after
the trigger. A set of clear (roughly R) band images were obtained.
We marginally detect the optical afterglow (Fu et al., GCN 38906;
Pankov et al., GCN 38913) in the 11x60s coadd image and measure
its brightness to be 20.5 +/- 0.3 (Vega) at a mid time of ~2.70 hr
after the trigger.