Statistics – Computation
Scientific paper
Jan 1985
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985a%26a...142..430k&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 142, no. 2, Jan. 1985, p. 430-436.
Statistics
Computation
16
Boundary Value Problems, Computational Astrophysics, Neutron Stars, Stellar Luminosity, Stellar Mass Accretion, Boundary Conditions, Eddington Approximation, Energy Distribution, Gas Pressure, Pulsars, Radiation Pressure, Shock Fronts, Subsonic Flow, X Ray Sources
Scientific paper
An analysis of accretion onto a magnetized neutron star is carried out to investigate the possibility that in flows of lower luminosity, the subsonic flow immediately above the stellar surface can be supported by radiation pressure alone. In order for such a situation to be realized, the existence of a shock front is postulated in which matter on the supersonic side is optically thin, whereas matter on the subsonic side is optically thick and in thermodynamic equilibrium with the radiation. The equations satisfying the flow in the subsonic region are derived, and their formal solutions in two dimensions are presented. The jump conditions for the shock front and other boundary conditions are then applied to the solutions, and implications of the solutions are discussed.
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