GCN Circular 3207
Subject
GRB 050408: Optical limit at 20 min after the burst
Date
2005-04-09T12:27:01Z (19 years ago)
From
Yuji Urata at RIKEN <urata@crab.riken.go.jp>
T. Mizuno, Y. Arai, H. Yamagishi (Tokyo Gakugei Univ.),
T. Soyano (Kiso observatory), Y. Urata, T. Tamagawa(RIKEN),
K.Y. Huang(NCU) on behalf of EAFON report,
" We have imaged the entire error region of GRB 050408 (GCN3189) with
1.05m Schmidt telescope at Kiso observatory, Japan in R band.
Utilizing HETE-2 GCN alert, the observation was started at 16:42 UT
(20 min after the burst) and lasted to 1 hour. There is no optical
emission from the optical afterglow (GCN 3192, GCN 3196) down to a
limiting magnitude of R=19.1 as estimated using USNO B1.0 catalog.
This message may be cited."