Astronomy and Astrophysics – Astrophysics
Scientific paper
Nov 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008sf2a.conf..459d&link_type=abstract
"SF2A-2008: Proceedings of the Annual meeting of the French Society of Astronomy and Astrophysics Eds.: C. Charbonnel, F. Combes
Astronomy and Astrophysics
Astrophysics
Scientific paper
The influence of large-scale magnetic fields on stellar structure and stellar evolution is semi-analytically considered. The magnetic field is derived for a given axisymmetric azimuthal current, and is non force-free, acting thus directly on the stellar structure by modifying the hydrostatic balance. We discuss the relative importance of the various terms associated with the magnetic field in the mechanical and thermal balances before implementing its effects in a 1D stellar evolution code in a way that preserves its geometrical properties. Our purpose is illustrated by the case of an internal magnetic field matching at the surface of an Ap star with an external potential and multipolar magnetic field.
Brun Allan Sacha
Duez Vincent
Mathis Stephane
Turck-Chieze Sylvaine
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