[vsnet-grb-info 18149] GRB 160623A CALET Gamma-Ray Burst Monitor detection

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  19597
SUBJECT: GRB 160623A CALET Gamma-Ray Burst Monitor detection
DATE:    16/06/27 01:26:43 GMT
FROM:    Takanori Sakamoto at AGU  <tsakamoto at phys.aoyama.ac.jp>

K. Yamaoka (Nagoya U), A. Yoshida, T. Sakamoto, Y. Kawakubo, M. Moriyama, 
Y. Yamada (AGU), 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 160623A (Mailyan et al., GCN Circ. 19555; 
Vianello et al. GCN Circ. 19553; Mingo et al. GCN Circ. 19558; 
Frederiks et al. GCN Circ. 19554) triggered the CALET Gamma-ray 
Burst Monitor (CGBM) at 04:59:34.27 on 23 June 2016.   The burst signal 
was seen by all CGBM instruments.  

The light curve of the SGM shows a bright peak with several overlapping pulses.  
The emission starts at T0, peaks at T0+12 sec and ends at T0+40 sec.  
The T90 duration measured by the SGM data is 13.5 +- 0.6 sec (40-1000 keV).  
The light curve is available at 

http://cgbm.calet.jp/cgbm_trigger/flight/1150693129/

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