A very long X-ray burst with a precursor from XB 1715-321.
Abstract
The Hakucho satellite observed a very long X-ray burst with a precursor from XB 1715-321 on 1982 July 20. The precursor precedes the onset of the main burst in the 1-9 keV range by about 7 s and lasts a few seconds. The main burst lasts about 300 s; in the first half of this period, the spectral hardness increases gradually up to that corresponding to the blackbody temperature of 3 keV, while the bolometric luminosity for the assumed blackbody spectrum stays nearly constant for about 100 s. The event is interpreted as a single burst with the expansion and contraction of the envelope.
- Publication:
-
The Astrophysical Journal
- Pub Date:
- January 1984
- DOI:
- 10.1086/184184
- Bibcode:
- 1984ApJ...276L..41T
- Keywords:
-
- Black Body Radiation;
- Bolometers;
- Bursts;
- X Ray Sources;
- Radiant Flux Density;
- Astrophysics