GCN Circular 33627
Subject
GRB 230409B: 3.6m DOT near-infrared detection, afterglow confirmation
Date
2023-04-15T08:39:33Z (a year ago)
From
Rahul Gupta at ARIES, India <rahulbhu.c157@gmail.com>
Rahul Gupta, Amit K. Ror, S. B. Pandey, A. Aryan, K. Misra (ARIES), A. J.
Castro-Tirado (IAA-CSIC), D. Bhattacharya (Ashoka University/IUCAA), and V.
Bhalerao (IITB) report on behalf of a larger collaboration:
GRB 230409B was detected by the Swift Burst Alert Telescope (BAT) at
04:56:57 UT on 9th April 2023 (Beardmore et al., GCN 33592). The prompt
emission mask-weighted BAT light curve consists of a single-peaked
structure with a T90 duration of 9.79 +- 2.59 sec in 15-350 keV energy
range (Palmer et al., GCN 33598