Angular momentum extraction by gravity waves in the Sun
天体物理学
2009-11-07 v1
摘要
We review the behavior of the oscillating shear layer produced by gravity waves below the surface convection zone of the Sun. We show that, under asymmetric filtering produced by this layer, gravity waves of low spherical order, which are stochastically excited at the base of the convection zone of late type stars, can extract angular momentum from their radiative interior. The time-scale for this momentum extraction in a Sun-like star is of the order of 10^7 years. The process is particularly efficient in the central region, and it could produce there a slowly rotating core.
引用
@article{arxiv.astro-ph/0206479,
title = {Angular momentum extraction by gravity waves in the Sun},
author = {Suzanne Talon and Pawan Kumar and Jean-Paul Zahn},
journal= {arXiv preprint arXiv:astro-ph/0206479},
year = {2009}
}
备注
9 pages, 3 figues, accepted by Astrophysical Journal Letter, 26 June 2002