Discovery and X-ray properties of GS 1124 - 683 (= Nova Muscae)

Details Discovery and X-ray properties of GS 1124 - 683 (= Nova Muscae) Discovery and X-ray properties of GS 1124 - 683 (= Nova Muscae)

Aug 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992apj...394..609k&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 394, no. 2, Aug. 1, 1992, p. 609-614.

Astronomy and Astrophysics

Astronomy

43

Black Holes (Astronomy), Novae, X Ray Stars, Ginga Satellite, Light Curve, Spaceborne Astronomy, Stellar Evolution, Stellar Models, Stellar Spectra

Scientific paper

The intensity and spectral evolution of the bright X-ray nova GS 1124 -683, observed with the All Sky Monitor from January 5 to the end of August, 1991, are presented. The spectra are roughly represented by a two-component model consisting of a power law and a thermal (disk-blackbody or blackbody) component. In its rising stage, the power-law component was dominant, and the thermal component gradually increased with temperature and emission area. In the decay phase, the power-law component decreased rapidly, whereas the thermal component decayed exponentially with a time constant of 31.2 +/-0.1 days. Some implications of the accretion phenomenon during the X-ray nova activity are discussed.

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