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Modelling dynamos in rapidly rotating late-type stars

Lookup NU author(s): Dr Paul Bushby

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Abstract

There is growing observational evidence that magnetic activity in rapidly rotating late-type stars is very different from that found in the Sun. In particular, polar spots and other high-latitude features are often observed on rapid rotators. In this Letter, I propose a plausible rotation profile for these rapidly rotating stars and this is then built into a non-linear mean-field dynamo model. It is shown that this model naturally gives rise to polar magnetic features and the relevance of these results to rapidly rotating late-type stars is discussed.


Publication metadata

Author(s): Bushby PJ

Publication type: Article

Publication status: Published

Journal: Monthly Notices of the Royal Astronomical Society

Year: 2003

Volume: 342

Issue: 1

Pages: L15–L19

ISSN (print): 0035-8711

ISSN (electronic): 1365-2966

Publisher: Wiley-Blackwell Publishing Ltd.

URL: http://dx.doi.org/10.1046/j.1365-8711.2003.06697.x

DOI: 10.1046/j.1365-8711.2003.06697.x


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