Magnetic fields in evolved stellar models - The magnetic deformation of Beta CrB yet again

Details Magnetic fields in evolved stellar models - The magnetic deformation of Beta CrB yet again Magnetic fields in evolved stellar models - The magnetic deformation of Beta CrB yet again

Jan 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979mnras.186..185m&link_type=abstract

Monthly Notices of the Royal Astronomical Society, vol. 186, Jan. 1979, p. 185-188.

Astronomy and Astrophysics

Astronomy

2

Magnetic Field Configurations, Stellar Evolution, Stellar Magnetic Fields, Stellar Models, Stellar Structure, Variable Stars, Axes Of Rotation, Magnetic Stars, Main Sequence Stars, Secular Variations

Scientific paper

Results are presented for the structure of dipolar magnetic fields in a series of rather artificial models of stars of increasing central condensation. The corresponding values of the parameter (A-C)/A, where A and C are principal moments of inertia, are calculated. The models are used to test Stift's (1977) hypothesis that a secular variation in the observed magnetic field of Beta CrB might be caused by deformation of the star due to its magnetic field. It is concluded that there is no evidence on the basis of existing stellar magnetic models for the operation of the mechanism suggested by Stift.

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