Influence of magnetic dipole orientation on the accretion rate in close binaries

Details Influence of magnetic dipole orientation on the accretion rate in close binaries Influence of magnetic dipole orientation on the accretion rate in close binaries

Jan 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984afz....20..165a&link_type=abstract

(Astrofizika, vol. 20, Jan.-Feb. 1984, p. 165-177) Astrophysics (ISSN 0571-7132), vol. 20, no. 1, July 1984, p. 104-112. Transla

Astronomy and Astrophysics

Astrophysics

5

Binary Stars, Magnetic Dipoles, Plasma Dynamics, Stellar Magnetic Fields, Stellar Mass Accretion, White Dwarf Stars, Accretion Disks, Lines Of Force, Roche Limit, Stellar Models

Scientific paper

A model is studied in which plasma moving along the magnetic field lines of a white dwarf overcomes a potential barrier between the Roche lobes of the components, the height of the barrier being determined by the orientation of the magnetic field. It is assumed that turbulent motion occurs predominantly along the local normal to the equipotential Roche surface. An analytic expression is obtained for the accretion rate in terms of the physical characteristics of the system, the orientation of the dipole, and the velocity distribution function of the convective elements of the envelope of the companion.

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