[vsnet-grb-info 24696] GRB 200111A: CALET Gamma-Ray Burst Monitor detection

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  26795
SUBJECT: GRB 200111A: CALET Gamma-Ray Burst Monitor detection
DATE:    20/01/17 01:58:51 GMT
FROM:    Valentin Pal'shin at AGU  <val at phys.aoyama.ac.jp>

S. Torii (Waseda U),
A. Yoshida, T. Sakamoto, V. Pal'shin, S. Sugita (AGU),
Y. Kawakubo (LSU), K. Yamaoka (Nagoya U), S. Nakahira (RIKEN),
Y. Asaoka (Waseda U), Y. Shimizu, T. Tamura (Kanagawa U),
N. Cannady (GSFC/UMBC), M. L. Cherry (LSU),
S. Ricciarini (U of Florence), P. S. Marrocchesi (U of Siena),
and the CALET collaboration:

The long GRB 200111A (Fermi GBM Final Real-time Localization:
The Fermi GBM team, GCN Circ. 26705; Insight-HXMT/HE detection:
Xiao et al., GCN Circ. 26714; IPN triangulation: Hurley et al.,
GCN Circ. 26778; AstroSat CZTI detection: Gaikwad et al., GCN Circ. 26783;
https://gcn.gsfc.nasa.gov/other/200111A.gcn3)
triggered the CALET Gamma-ray Burst Monitor (CGBM) at 15:11:07.610 UTC 
on 11 January 2020. The burst signal was seen by all CGBM detectors.

The burst light curve shows a multi-peaked structure followed by a short
pulse. The emission starts at T+0.0 sec, peaks at T+6.0 sec and ends at
T+6.4 sec. The T90 and T50 durations measured by the SGM data are
6.0 +- 0.5 sec and 3.9 +- 1.9 sec (40-1000 keV), respectively.

The ground processed light curve is available at

http://cgbm.calet.jp/cgbm_trigger/ground/1262790473/

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