Abstract
Asynchronous rotation of strongly magnetic white dwarfs in close binary systems drives substantial field-aligned electrical currents between the magnetic star and its companion. The resulting magneto- hydrodynamic torque is able to account for the heretofore unexplained synchronous rotation of the strongly magnetic degenerate dwarf component in systems like AM Her, VV Pup, AN UMa, and EF Eri. The electric fields produced by even a small asynchronism are large enough to accelerate electrons to high energies, and may lead to radio emission. The total energy dissipation rate in systems with white dwarf spin periods as short as lm may reach 1033 ergs s-1. Total luminosities of this order may be a characteristic feature of such systems.
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Lamb, F.K., Aly, JJ., Cook, M.C., Lamb, D.O. (1985). Synchronization of Magnetic White Dwarfs in Close Binary Systems. In: Lamb, D.Q., Patterson, J. (eds) Cataclysmic Variables and Low-Mass X-Ray Binaries. Astrophysics and Space Science Library, vol 113. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-5319-2_25
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DOI: https://doi.org/10.1007/978-94-009-5319-2_25
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