The alpha-effect and current helicity for fast sheared rotators
天体物理学
2007-05-23 v1
摘要
We explore the alpha-effect and the small-scale current helicity, for the case of weakly compressible magnetically driven turbulence that is subjected to the differential rotation. No restriction is applied to the amplitude of angular velocity, i.e., the derivations presented are valid for an arbitrary Coriolis number, though the differential rotation itself is assumed to be weak. The expressions obtained are used to explore the possible distributions of alpha-effect and current helicity in convection zones (CZ) of the solar-type stars. The implications of the obtained results to the mean-field dynamo models are discussed.
关键词
引用
@article{arxiv.astro-ph/0503095,
title = {The alpha-effect and current helicity for fast sheared rotators},
author = {V. V. Pipin},
journal= {arXiv preprint arXiv:astro-ph/0503095},
year = {2007}
}
备注
20 pages, 6 figures