[vsnet-grb-info 1788] GRB 050716: Lulin B and R band optical observations

[GCN Circulars]

TITLE:   GCN GRB OBSERVATION REPORT
NUMBER:  3628
SUBJECT: GRB 050716: Lulin B and R band optical observations
DATE:    05/07/16 17:13:22 GMT
FROM:    Yuji Urata at RIKEN  <urata at crab.riken.go.jp>

Z.Y. Lin(NCU), K.Y. Huang, W.H. Ip (NCU), Y. Urata(RIKEN),
Y. Qiu (BAO), Y.Q. Lou (THCA) on behalf of EAFON report:

"We have imaged the GRB 050716 X-ray afterglow position (Rol et
al. GCN 3623; J. Kennea et al.  3264) with B and R band using Lulin
1-m telescope. The observation was started at 14:30 (0.079 days after
the burst) after rising the field. These images show no optical
counterpart brighter than B=21.6 and R=21.3. These 3-sigma limiting
magnitudes are derived from the USNO-B1.0 catalogue.

This message may be cited."