GCN Circular 34395
Subject
GRB 230812B: KAIT Optical Afterglow Candidate
Date
2023-08-13T05:26:37Z (a year ago)
From
Weikang Zheng at UC Berkeley <weikang@berkeley.edu>
Via
legacy email
WeiKang Zheng and Alexei V. Filippenko (UC Berkeley) report on
behalf of the KAIT GRB team:
The 0.76-m Katzman Automatic Imaging Telescope (KAIT), located at
Lick Observatory, responded to GRB 230812B (The Fermi GBM team,
GCN 34386) starting at Aug. 13, 04:42:53 UT. We detected an uncataloged
optical afterglow candidate not shown in SDSS archive at position
of (error ~0.5"):
RA: 16:36:31.52 (J2000)
Dec: +47:51:32.24 (J2000)
This position is about 7.4 arcsec to the improved Swift/XRT
localization (Page et al., GCN 34393), which is slightly outside its
estimate 3.7 arcseconds error radius. We measure the target is
~18.7 in out clear band image at ~9.75 hours after burst. We can
not estimate the variability at this time, further observations
are encouraged.