Thermal instability accretion disk model for the X-ray transient A0620-00

Abstract

view Abstract Citations (81) References (40) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Thermal Instability Accretion Disk Model for the X-Ray Transient A0620-00 Huang, Min ; Wheeler, J. Craig Abstract The limit-cycle thermal instability model for accretion disks is used to study the soft X-ray transient A0620-00. Thermal instability in geometrically thin, Keplerian alpha-model disks is reviewed. The observational constraints on A0620-00 are presented and the parameters chosen for the model are discussed. It is found that, with the adopted parameters, the model requires a central object mass of about 7 solar masses to fit the burst recurrence time. This is consistent with a black hole as the central object. The results suggest that a mass transfer instability may be responsible for outbursts. Publication: The Astrophysical Journal Pub Date: August 1989 DOI: 10.1086/167700 Bibcode: 1989ApJ...343..229H Keywords: Accretion Disks; Astronomical Models; Black Holes (Astronomy); Thermal Instability; X Ray Sources; Angular Momentum; Companion Stars; Computational Astrophysics; K Stars; Mass Transfer; Astrophysics; BLACK HOLES; STARS: ACCRETION; STARS: BINARIES; X-RAYS: BURSTS full text sources ADS | data products SIMBAD (3)