[vsnet-grb-info 2387] GRB 051109B Kiso optical follow-up observation

[GCN Circulars]

TITLE:   GCN GRB OBSERVATION REPORT
NUMBER:  4224
SUBJECT: GRB 051109B Kiso optical follow-up observation
DATE:    05/11/09 11:45:03 GMT
FROM:    Yuji Urata at RIKEN  <urata at crab.riken.go.jp>

H. Mito, Y. Nakada(Tokyo Univ.), H. Nakanishi(NAOJ), F. Egusa,
S. Komugi(Tokyo Univ.), K. Huang(IANCU), Y. Urata(RIKEN)
on behalf of EAFON report:

"We have imaged entire error region of GRB051109B(Tagliaferri et
al. GCN 4222, Swift trigger=163170) using Kiso 1.05m Schmidt
telescope.  After end of twilight, we have started B and R band
observations at 09:12:07 (UT). Comparison with DSS images and USNO-B
catalog, there is no new source brighter than B=20.9, R=20.2. There is
also no significant signals at the UVOT position reported by
Tagliaferri et al (GCN 4222).

==========================================
Delay time(min) Filter Limiting mag.(SN=3)
32.5            R      20.2
45.7            B      20.9
==========================================

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