A very long X-ray burst with a precursor from XB 1715-321

Details A very long X-ray burst with a precursor from XB 1715-321 A very long X-ray burst with a precursor from XB 1715-321

Jan 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984apj...276l..41t&link_type=abstract

Astrophysical Journal, Part 2 - Letters to the Editor (ISSN 0004-637X), vol. 276, Jan. 15, 1984, p. L41-L44.

Astronomy and Astrophysics

Astrophysics

67

Black Body Radiation, Bolometers, Bursts, X Ray Sources, Radiant Flux Density

Scientific paper

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.

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