[vsnet-grb-info 18796] GRB 161207A: CALET Gamma-Ray Burst Monitor detection

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  20246
SUBJECT: GRB 161207A: CALET Gamma-Ray Burst Monitor detection
DATE:    16/12/10 04:54:09 GMT
FROM:    Takanori Sakamoto at AGU  <tsakamoto at phys.aoyama.ac.jp>

S. Ozawa (Waseda U), A. Yoshida, T. Sakamoto, Y. Kawakubo, M. Moriyama,
Y. Yamada (AGU), K. Yamaoka (Nagoya U), S. Nakahira (JAXA), I. Takahashi (IPMU),
Y. Asaoka, S. Torii (Waseda U), Y. Shimizu, T. Tamura (Kanagawa U), W. Ishizaki (ICRR),
M. L. Cherry (LSU), S. Ricciarini (U of Florence), P. S. Marrocchesi (U of Siena)
and the CALET collaboration:

The long-duration GRB 161207A (Fermi-GBM trigger #502836132) triggered
the CALET Gamma-ray Burst Monitor (CGBM) at 20:43:00.39 on 7 December 2016.
The burst signal was seen by all CGBM instruments.

The light curve of the SGM shows several overlapping peaks.  The entire
burst episode starts at T-20 sec, peaks at T+5 sec and ends at T+30 sec.
The T90 duration measured by the SGM data is 32.8 +- 1.7 sec (40-1000 keV).

The light curve is available at

http://cgbm.calet.jp/cgbm_trigger/flight/1165178415/

The CALET data used in this analysis are provided by the Waseda
CALET Operation Center located at the Waseda University.