Multiple Bursts from SGR J1935+2154
ATel #15667; David M. Palmer (LANL) on behalf of the Swift Team
on 11 Oct 2022; 22:02 UT
Credential Certification: David M. Palmer (palmer@lanl.gov)
Subjects: X-ray, Soft Gamma-ray Repeater, Magnetar
Three bursts have been detected and identified by the Swift/BAT instrument from the Soft Gamma Repeater SGR J1935+2154. These are in addition to the burst detected by INTEGRAL and reported in Mereghetti et al. (GCN#32675), which was behind the Earth as seen by BAT at the time.
The burst times and their durations (accuracy implied by significant digits), are:
| Time (UTC) | Duration(s) | Notes |
|---|
| 2022-10-10 01:39:09.0 | 0.08 | BAT Trigger #1126883 |
| 2022-10-10 09:15:42.9 | 0.03 | BAT Trigger #1126909 |
| 2022-10-10 14:12:45.7 | 0.15 | BAT Trigger #1126938 |
| 2022-10-10 21:28:25.8 | 0.4 | GCN#32675 (INTEGRAL) |
These are the first bursts that BAT has identified from this source since previously-unreported bursts at
2022-05-30T20:32:26.6 and
2022-06-16T07:11:52.0. Those bursts followed a previous outburst of 41 BAT-identified bursts from 2021-12-24 to 2021-01-18 (e.g. Palmer et al. ATel#15141).
