Stellar Evolution with Rotation and Magnetic Fields IV: The Solar Rotation Profile
Astrophysics
2009-11-11 v1
Abstract
We examine the generation of a magnetic field in a solar-like star and its effects on the internal distribution of the angular velocity. We suggest that the evolution of a rotating star with magnetic fields leads to an equilibrium value of the differential rotation. This equilibrium is determined by the magnetic coupling, which favours a constant rotation profile, and meridional circulation which tends to build differential rotation. The global equilibrium stage is close to solid body rotation between about 0.7 and 0.2 R_sun, in good agreement with helioseismic measurements.
Cite
@article{arxiv.astro-ph/0508455,
title = {Stellar Evolution with Rotation and Magnetic Fields IV: The Solar Rotation Profile},
author = {P. Eggenberger and A. Maeder and G. Meynet},
journal= {arXiv preprint arXiv:astro-ph/0508455},
year = {2009}
}
Comments
4 pages, 4 figures, accepted for publication in A&A Letters