GCN Circular 26795
Subject
GRB 200111A: CALET Gamma-Ray Burst Monitor detection
Event
Date
2020-01-17T01:58:51Z (6 years ago)
From
Valentin Pal'shin at AGU <val@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.