Abstract
view Abstract Citations (102) References (42) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Accretion Flows in Galactic X-Ray Sources. Optically Thin Spherically Symmetric Model Buff, James ; McCray, Richard Abstract Spherically symmetric accretion flows in the presence of a strong X-ray source are discussed. Gas temperature is determined locally by a balance between X-ray heating and radiative cooling. The rate of mass accretion is regulated by the location of the sonic surface, which depends on X-ray luminosity and spectrum. No steady flow is possible unless the source has a soft X-ray cutoff with energy >2 keV. Radiation pressure on the gas due to photoionization may exceed that due to Compton scattering by a large factor. Subject headings: black holes - gas dynamics - neutron stars - X-ray sources Publication: The Astrophysical Journal Pub Date: April 1974 DOI: 10.1086/152780 Bibcode: 1974ApJ...189..147B full text sources ADS |
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