[vsnet-grb-info 17886] GRB 160419A: CALET Gamma-Ray Burst Monitor detection

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  19332
SUBJECT: GRB 160419A: CALET Gamma-Ray Burst Monitor detection
DATE:    16/04/22 22:58:00 GMT
FROM:    Takanori Sakamoto at AGU  <tsakamoto at phys.aoyama.ac.jp>

M. L. Cherry (LSU), 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), S. Ricciarini (U of Florence), P. S. Marrocchesi (U of Siena) 
and the CALET collaboration:

The long-duration GRB 160419A (Markwardt et al., GCN circ. 19326; Mailyan et al., 
GCN circ. 19327) triggered the CALET Gamma-Ray Burst Monitor (CGBM) at 15:16:35.4 on 
19 April 2016.  The burst signal was seen by all CGBM instruments.  

The light curve of the HXM shows several spikes.  The emission starts from T0-2 sec, 
peaks at T0+3 sec and ends at T0+10 sec.  The T90 duration measured by the HXM2 data 
is 6.2 +- 0.9 sec (50-250 keV). 

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