GRB 210723A: CALET Gamma-Ray Burst Monitor detection
Abstract
The long GRB 210723A (Swift detection: Sbarrato et al., GCN Circ. 30485, Krimm and Barthelmy, GCN Circ. 30495; Fermi GBM Observation: Lesage et al., GCN Circ. 30499; https://gcn.gsfc.nasa.gov/other/210723A.gcn3) triggered the CALET Gamma-ray Burst Monitor (CGBM) at 14:46:05.572 UTC on 23 July 2021 (http://cgbm.calet.jp/cgbm_trigger/flight/1311086521/index.html). The burst signal was seen only by the SGM detector. The burst light curve shows a single-pulse structure which starts at T+0.9 sec, peaks at T+12.6 sec,and ends at T+22.0 sec. The T90 and T50 durations measured by the SGM data are 17.2 +- 3.2 sec and 10.6 +- 3.2 sec (40-1000 keV), respectively. The ground processed light curve is available at http://cgbm.calet.jp/cgbm_trigger/ground/1311086521/ The CALET data used in this analysis are provided by the Waseda CALET Operation Center located at the Waseda University.
- Publication:
-
GRB Coordinates Network
- Pub Date:
- July 2021
- Bibcode:
- 2021GCN.30506....1A