Discovery and X-Ray Properties of GS 1124-683 (=Nova Muscae)
Abstract
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.
- Publication:
-
The Astrophysical Journal
- Pub Date:
- August 1992
- DOI:
- 10.1086/171614
- Bibcode:
- 1992ApJ...394..609K
- Keywords:
-
- Black Holes (Astronomy);
- Novae;
- X Ray Stars;
- Ginga Satellite;
- Light Curve;
- Spaceborne Astronomy;
- Stellar Evolution;
- Stellar Models;
- Stellar Spectra;
- Astrophysics