SGR Swift J1555.2-5402 : Swift-BAT detects two additional bursts
ATel #14690; David Palmer (LANL), on behalf of the Swift Team
on 9 Jun 2021; 16:07 UT
Credential Certification: David M. Palmer (palmer@lanl.gov)
Subjects: X-ray, Gamma Ray, Neutron Star, Soft Gamma-ray Repeater, Magnetar
Referred to by ATel #: 14887
Swift-BAT has detected two additional bursts from SGR Swift J1555.2-5402
| |
Time |
Trigger
dur (ms) |
Trigger |
Rate
fluence |
BAT coding
fraction |
| A |
2021-06-03T09:45:46 |
8 |
#1053220 |
160 |
90% |
| B |
2021-06-05T23:52:04 |
16 |
#1053653 |
134 |
84% |
| C |
2021-06-07T12:33:40 |
4 |
#1053961 |
54 |
100% |
Burst A is the discovery burst (Palmer et al. GCN #30120).
Bursts B and C are first reported here.
The on-board calculated trigger duration and rate fluence (excess counts
above background during trigger) are qualitatively useful for comparison.
Burst C occurred while the source was in the XRT FOV and the fully-coded
portion of the BAT FOV. The other bursts were in BAT's mostly-coded FOV.
More detailed analysis will be reported later.
This ATEL is an official product of the Swift team.
