[vsnet-grb-info 2425] GRB 051111A : R-band temporal decay index based on Lulin

[GCN Circulars]

TITLE:   GCN GRB OBSERVATION REPORT
NUMBER:  4262
SUBJECT: GRB 051111A : R-band temporal decay index based on Lulin
DATE:    05/11/11 16:06:28 GMT
FROM:    Yuji Urata at RIKEN  <urata at crab.riken.go.jp>

GRB 051111A : R-band temporal decay index based on Lulin observations

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

"We have observed the optical afterglow of GRB 051111 (GCN # 4247,
4248) using the Lulin 1m telescope with BVRI band filters between
10:07 UT and 14:54 UT on Nov 11 2005. Combine with our previous
preliminary result (GCN # 4258), the R-band light curve shows shallow
decay. When we fit all our R-band data with single power-law the
temporal index is determined as alpha~-0.6.

Further analysis is in progress."

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