Differential rotation and magnetic torques in the interior of the sun

Details Differential rotation and magnetic torques in the interior of the sun Differential rotation and magnetic torques in the interior of the sun

Oct 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985natur.317..790r&link_type=abstract

Nature (ISSN 0028-0836), vol. 317, Oct. 31, 1985, p. 790-792.

Physics

33

Angular Velocity, Solar Interior, Solar Magnetic Field, Solar Rotation, Stellar Cores, Dynamo Theory, Stellar Evolution

Scientific paper

Measurements of rotational splitting in solar oscillations have provided the first reliable indications of the variation of angular velocity with radius in the Sun. These results confirm theoretical predictions that the angular velocity decreases inwards in the convective zone but raise problems for dynamo models of the solar cycle. The suggestion that the core rotates with roughly twice the surface angular velocity is hard to reconcile with the presence of any significant magnetic field pervading the entire radiative interior. One can only explain it by suggesting that the core contains a fossil field, unaffected by turbulence in the pre-main sequence Hayashi phase, that is decoupled from the rest of the star.

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