GCN Circular 10904
Subject
GRB100628A : MOA optical upper limit
Event
Date
2010-06-29T05:31:35Z (16 years ago)
From
Suzuki Daisuke at MOA-II <dsuke@stelab.nagoya-u.ac.jp>
D. Suzuki, K. Omori, F. Hayashi, S. Kobara, H. Naito and T. Sako (STE Lab. , Nagoya Univ.)
on behalf of the MOA Collaboration repot :
We searched for an optical afterglow of GRB100628A (GCN 10895, S. Immler et al.)
starting from 08:16:43 UT on 2010 June 28 ( 3 minutes after the burst)
with the MOA-II 1.8m telescope at Mt.John observatory in New Zealand.
In a single image of a 300 sec exposure with a wideband Red filter (center
wavelength ~ 750nm and FWHM ~ 250nm), we did not find any object
within the error circle of the Swift XRT source position (GCN 10899, R.L.C. Starling et al.).
A 3 sigma upper limit is set in the I magnitude at 22.7 mag.
This photometry was done by using the DoPhot and calibrated against the
USNO-B1.0 catalog stars, and not corrected for the Galactic extinction.