GRB 220609B: CALET Gamma-Ray Burst Monitor detection
Abstract
The long GRB 220609B triggered the CALET Gamma-ray Burst Monitor (CGBM) at 12:21:07.969 UTC on 9 June 2022 (http://cgbm.calet.jp/cgbm_trigger/flight/1338812272/index.html). The burst signal was seen by all CGBM detectors. The burst light curve shows a multi-peaked structure which starts at T-6.4 sec, peaks at T+7.9 sec, and ends at T+14.1 sec. The T90 and T50 durations measured by the SGM data are 9.9 +/- 1.0 sec and 3.5 +/- 0.2 sec (40-1000 keV), respectively. The ground processed light curve is available at http://cgbm.calet.jp/cgbm_trigger/ground/1338812272/ 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:
- June 2022
- Bibcode:
- 2022GCN.32185....1A