Abstract
view Abstract Citations (116) References (32) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Steady Spherical Hypercritical Accretion onto Neutron Stars Houck, John C. ; Chevalier, Roger A. Abstract The present study of hypercritical accretion flows onto neutron stars considers steady-state, spherically symmetric flows whose accretion rate range is characterized by the carrying away of gravitational-accretion energy by neutrinos. The models used encompass pair production, radiation diffusion, and general relativistic effects. While pair pressure dominates throughout the accretion envelope when accretion rates above about 100 solar masses/yr, radiation diffusion becomes important when the accretion rate falls below about 0.001 solar masses/yr. At the lower accretion rates, free fall toward the neutron-star surface stops and an extended, quasi-static, radiation pressure-supported envelope emerges which is probably dynamically unstable. Publication: The Astrophysical Journal Pub Date: July 1991 DOI: 10.1086/170272 Bibcode: 1991ApJ...376..234H Keywords: Mass Transfer; Neutron Stars; Stellar Envelopes; Stellar Mass Accretion; Supernovae; Ionization; Mass Flow; Pair Production; Relativistic Effects; Steady State; Astrophysics; STARS: ACCRETION; STARS: NEUTRON; STARS: SUPERNOVAE full text sources ADS | data products SIMBAD (1)
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