GRB 230703A: CALET Gamma-Ray Burst Monitor detection
Abstract
The long GRB 230703A (Fermi GBM Trigger Number 710117592; GRID detection: Wang et al., GCN Circ. 34188) triggered the CALET Gamma-ray Burst Monitor (CGBM) at 22:53:04.92 UTC on 3 July 2023 (http://cgbm.calet.jp/cgbm_trigger/flight/1372459956/index.html). The burst signal was seen by all CGBM detectors. The burst light curve shows a double-peaked structure that starts at T+2.1 sec, peaks at T+4.0 sec, and ends at T+17.5 sec. The T90 and T50 durations measured by the SGM data are 13.5 +/- 0.6 sec and 7.9 +/- 0.4 sec (40-1000 keV), respectively. The ground-processed light curve is available at http://cgbm.calet.jp/cgbm_trigger/ground/1372459956/ The CALET data used in this analysis are provided by the Waseda CALET Operation Center located at Waseda University.
- Publication:
-
GRB Coordinates Network
- Pub Date:
- July 2023
- Bibcode:
- 2023GCN.34210....1A