GRB 240128A: CALET Gamma-Ray Burst Monitor detection
Abstract
The long GRB 240128A (MAXI/GSC detection, Yamaoka et al., GCN Circ. 35646) triggered the CALET Gamma-ray Burst Monitor (CGBM) at 15:13:34.34 UTC on 28 January 2024 (http://cgbm.calet.jp/cgbm_trigger/flight/1390489809/). The burst signal was seen by all CGBM detectors. The burst light curve shows a multi-peaked structure that starts at T+1.4 sec, peaks at T+10.8 sec, and ends at T+15.2 sec. The T90 and T50 durations measured by the SGM data are 12.5 +/- 0.6 sec and 7.2 +/- 0.6 sec (40-1000 keV), respectively. The ground-processed light curve is available at http://cgbm.calet.jp/cgbm_trigger/ground/1390489809/index.html 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:
- January 2024
- Bibcode:
- 2024GCN.35647....1Y