Effects of fluctuation on alpha-omega dynamo models
Astrophysics
2009-11-13 v1
Abstract
We analyse the role of a fluctuating alpha-effect in alpha-omega dynamo models, and show that there is a mechanism for magnetic field generation, valid at large scale separation, deriving from the interaction of mean shear and a fluctuating alpha-effect. It is shown that this effect can act as a dynamo even in the absence of a mean alpha-effect, and that the timescale for dynamo waves is strongly affected by the presence of fluctuations.
Cite
@article{arxiv.0708.3210,
title = {Effects of fluctuation on alpha-omega dynamo models},
author = {Michael R. E. Proctor},
journal= {arXiv preprint arXiv:0708.3210},
year = {2009}
}
Comments
4 pages, 3 figures