[vsnet-grb-info 19515] GRB 170614A CALET Gamma-Ray Burst Monitor detection

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  21255
SUBJECT: GRB 170614A CALET Gamma-Ray Burst Monitor detection
DATE:    17/06/16 23:00:32 GMT
FROM:    Takanori Sakamoto at AGU  <tsakamoto at phys.aoyama.ac.jp>

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

The long-duration GRB 170614A (Fermi-GBM trigger #519133191;
INTEGRAL SPI-ACS trigger #7869; Konus-Wind trigger time on
11:39:55.892) triggered the CALET Gamma-ray Burst Monitor (CGBM)
at 11:39:43.86 on 14 June 2017.  The burst signal was seen by the all
CGBM instruments.

The light curve of the SGM shows multiple peaks.  The entire
burst episode starts at T+~2 sec, peaks at T+~20 sec and ends
at T+~40 sec.  The T90 duration measured by the SGM data is
22 +- 1 sec (40-1000 keV).

The light curve is available at

http://cgbm.calet.jp/cgbm_trigger/flight/1181475101/

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