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Dynamo Scaling Relationships

Published online by Cambridge University Press:  28 July 2017

Kyle Augustson Open the ORCID record for Kyle Augustson [Opens in a new window] ,
Stéphane Mathis ,
Sacha Brun  and
Juri Toomre
Kyle Augustson
Affiliation:
Laboratoire AIM Paris-Saclay, CEA/DRF – CNRS – Université Paris Diderot, IRFU/SAp Centre de Saclay, F-91191 Gif-sur-Yvette Cedex, France
Stéphane Mathis
Affiliation:
Laboratoire AIM Paris-Saclay, CEA/DRF – CNRS – Université Paris Diderot, IRFU/SAp Centre de Saclay, F-91191 Gif-sur-Yvette Cedex, France
Sacha Brun
Affiliation:
Laboratoire AIM Paris-Saclay, CEA/DRF – CNRS – Université Paris Diderot, IRFU/SAp Centre de Saclay, F-91191 Gif-sur-Yvette Cedex, France
Juri Toomre
Affiliation:
JILA, University of Colorado – Boulder, Colorado, USA 80309
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Abstract

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This paper provides a brief look at dynamo scaling relationships for the degree of equipartition between magnetic and kinetic energies. Two simple models are examined, where one that assumes magnetostrophy and another that includes the effects of inertia. These models are then compared to a suite of convective dynamo simulations of the convective core of a main-sequence B-type star and applied to its later evolutionary stages.

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