The mutual interaction of magnetism, rotation and meridian circulation in stellar radiative zones

Statistics – Computation

Scientific paper

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Lorentz Force, Magnetic Stars, Poloidal Flux, Stellar Envelopes, Stellar Radiation, Stellar Rotation, Angular Velocity, Computational Astrophysics, Gravitational Fields, Interstellar Magnetic Fields, Steady State

Scientific paper

Tassoul and Tassoul (1986) have recently claimed that no magnetic field can enforce approximately uniform rotation in a stellar radiative zone in which meridional circulation is present. They obtain this result by expanding in terms of two small parameters and by retaining only the lowest order terms. The authors show that in normal stellar conditions, terms which are technically of higher order in the expansion have such large numerical coefficients that they become important within an Alfvén wave travel time which is very much less than a circulation time. In consequence the claim of Tassoul and Tassoul is incorrect.

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