Swift detection of a type-I X-ray burst from Swift J1922.7-1716
Abstract
Barthelmy et al. (2011; GCN #12522) report a Swift/BAT trigger on the transient X-ray source Swift J1922.7-1716, which is currently in outburst (ATels #3548, #3567 and #3740). We have investigated the Swift BAT and XRT data to asses the nature of the BAT trigger. The source was detected for about 30 s in the BAT data (see also GCN #12522) and we summed those data to obtain a BAT spectrum. This averaged spectrum can be fitted with a blackbody model with a temperature of kT~2.4 keV, resulting in an averaged bolometric flux of ~6.4E-8 erg cm-2 s-1.
- Publication:
-
The Astronomer's Telegram
- Pub Date:
- November 2011
- Bibcode:
- 2011ATel.3741....1D
- Keywords:
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- X-ray;
- Binary;
- Neutron Star;
- Transient