Modelling dynamos in rapidly rotating late-type stars (2003)

Author(s): Bushby PJ

    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.

      • Date: 02-06-2003
      • Journal: Monthly Notices of the Royal Astronomical Society
      • Volume: 342
      • Issue: 1
      • Pages: L15–L19
      • Publisher: Wiley-Blackwell Publishing Ltd.
      • Publication type: Article
      • Bibliographic status: Published

      Dr Paul Bushby
      Senior Lecturer