Inhomogeneous wind accretion - Comparison between 3D and 2D computations

Details Inhomogeneous wind accretion - Comparison between 3D and 2D computations Inhomogeneous wind accretion - Comparison between 3D and 2D computations

Sep 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989a%26a...221..263s&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 221, no. 2, Sept. 1989, p. 263-272. Research supported by the Max-Planck-Insti

Statistics

Computation

34

Accretion Disks, Computational Astrophysics, Neutron Stars, Stellar Mass Accretion, X Ray Binaries, Computational Grids, Density Distribution, Mach Number, Three Dimensional Flow, Tvd Schemes, Two Dimensional Flow

Scientific paper

Full three-dimensional computations of accretion flows which have velocity gradients are presented and compared with two-dimensional computations. It is found that the rate of accretion of the angular momentum in three-dimensional flows is about 5 times smaller than in the two-dimensional cases. The effect that this finding has on the modeling of wind-fed binary X-ray sources is discussed. It is concluded that only three-dimensional calculations can give a reliable answer to the question of angular momentum transfer to the neutron star.

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