[vsnet-grb-info 19935] GRB 171011B CALET Gamma-Ray Burst Monitor detection

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  22022
SUBJECT: GRB 171011B CALET Gamma-Ray Burst Monitor detection
DATE:    17/10/18 11:57:19 GMT
FROM:    Takanori Sakamoto at AGU  <tsakamoto at phys.aoyama.ac.jp>

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

The long-duration GRB 171011B (Hurley et al., GCN Circ. 21998;
Svinkin et al., GCN Circ. 22005) triggered the CALET Gamma-ray Burst Monitor (CGBM)
at 01:05:36.47 on 11 October 2017.  The burst signal was seen by the all CGBM instruments.

The light curve of the SGM shows a single peak.  The emission starts at T0 sec
and the brightest pulse peaks at T+1.5 sec.  The entire emission ends at T+3.5 sec.
The T90 duration measured by the SGM data is 2.0 +- 0.3 sec (40-1000 keV).

The light curve is available at

http://cgbm.calet.jp/cgbm_trigger/flight/1191719089/

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