Magneto-gravitational synchronous states in the AM Herculis variables

Details Magneto-gravitational synchronous states in the AM Herculis variables Magneto-gravitational synchronous states in the AM Herculis variables

May 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990mnras.244..367c&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 244, May 15, 1990, p. 367-371.

Statistics

Computation

12

Binary Stars, Computational Astrophysics, Gravitational Effects, Stellar Mass Accretion, White Dwarf Stars, M Stars, Magnetic Stars, Stellar Magnetic Fields

Scientific paper

It is shown that a balance between gravitational and magnetic torques can produce the observed synchronous states of the white dwarfs in the AM Herculis binaries. The gravitational torque results from a small departure of the white dwarf from spherical symmetry, while the magnetic torque is due to a field sustained by a source in the secondary. The required field values at the secondary's surface are of order 1000 G.

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