Disk-driven precession in SS 433

Abstract

view Abstract Citations (56) References (12) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Disk-driven precession in SS 433 Sarazin, C. L. ; Begelman, M. C. ; Hatchett, S. P. Abstract The paper demonstrates that a moderately massive disk can cause the Lense-Thirring precession of a compact object (such as a neutron star or black hole) at its center. The inner regions of the disk align with the equator and will precess at the same rate as the compact object; it is proposed that this disk-driven precession produces the 164 day period in SS 433. In this model, SS 433 represents a stage in the evolution of a binary X-ray source, containing a nondegenerate primary star, a compact companion, and an accretion disk about the compact object. The accretion luminosity, which greatly exceeds the Eddington limit, appears as kinetic energy of outflow of accreted material. The high accretion rate causes the inner disk to be thick; this toroidal inner disk collimates the outflow into two beams. Publication: The Astrophysical Journal Pub Date: June 1980 DOI: 10.1086/183272 Bibcode: 1980ApJ...238L.129S Keywords: Binary Stars; Precession; Stellar Evolution; Stellar Mass Accretion; Variable Stars; X Ray Stars; Disks (Shapes); Stellar Mass Ejection; Stellar Models; Stellar Spectra; Astrophysics full text sources ADS |