[vsnet-grb-info 18425] GRB 160824B: CALET Gamma-Ray Burst Monitor detection

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  19873
SUBJECT: GRB 160824B: CALET Gamma-Ray Burst Monitor detection
DATE:    16/08/26 22:50:06 GMT
FROM:    Takanori Sakamoto at AGU  <tsakamoto at phys.aoyama.ac.jp>

A. Yoshida, T. Sakamoto, Y. Kawakubo, M. Moriyama, Y. Yamada (AGU),
K. Yamaoka (Nagoya U), S. Nakahira (JAXA), 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),
P. S. Marrocchesi (U of Siena)
and the CALET collaboration:

The long-duration GRB 160824B (Hamburg et al., GCN Circ. 19856;
INTEGRAL-SPI/ACS trigger #7538) triggered the CALET Gamma-ray Burst Monitor
(CGBM) at 14:21:12.34 on 24 August 2016.  The burst signal was seen by
all CGBM instruments.  Because of a problem in one of the ground alert processing
script, the GCN notice was not distributed automatically for this event.

The light curve of the SGM shows a single peak starting at T+0.5 sec, peaking at
T+1.5 sec and ending at T+4 sec.  The T90 duration measured by the SGM data
is 2.7 +- 0.1 sec (40-1000 keV).

The light curve is available at

http://cgbm.calet.jp/cgbm_trigger/flight/1156083685/

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