GCN Circular 7363
Subject
GRB 080307: Optical observation with DMC/KANATA
Date
2008-03-07T12:33:44Z (16 years ago)
From
Makoto Uemura at Hiroshima U <uemuram@hiroshima-u.ac.jp>
M. Doi, S. Sako, J. Hayano, Y. Ihara, N. Takanashi,
H. Kuncarayakti (The Univresity of Tokyo), D. Kuroda (NAOJ),
K. S. Kawabata, and M. Uemura (Hiroshima Univ.)
report on behalf of the DMC team:
We took optical CCD images of the field of GRB 080307 (GCNC 7362)
with Dichroic Mirror Camera (DMC; http://www.ioa.s.u-tokyo.ac.jp/dmc/)
attached to the 1.5-m KANATA telescope.
DMC enables us to simultenaously obtain 15 band images in the
optical range (typical delta lambda = 35 nm).
We started observations at 11:31:18 (UT) 7 March 2008,
467 s after the burst. The exposure time was 60 s.
No candidate of its optical afterglow brighther than
r=17.13 mag (USNO B1.0 1251-0170228; RA=09:06:33.62, Dec=+35:08:44.1)
was found in our all images.
YYYYDDMM(UT) limit mag. center of wavelengths
20080307.4804 17.13 r 641nm (chanel 07 of DMC)