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Simulations of Core Convection Dynamos in Rotating A-type Stars

Published online by Cambridge University Press:  26 May 2016

Matthew Browning ,
Allan Sacha Brun  and
Juri Toomre
Matthew Browning
Affiliation:
JILA, University of Colorado, Boulder, CO, USA 80309-0440
Allan Sacha Brun
Affiliation:
JILA, University of Colorado, Boulder, CO, USA 80309-0440
Juri Toomre
Affiliation:
JILA, University of Colorado, Boulder, CO, USA 80309-0440

Abstract

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We have conducted preliminary numerical simulations of a core convection dynamo operating within an A-type star of two solar masses. Convection within the core clearly can admit magnetic dynamo action. Magnetic field strengths in our three-dimensional simulations grow by many orders of magnitude, from an initial seed field to kilo-Gauss levels. We discuss the differential rotation and magnetic field sustained in our simulations.

Type
Session 3 Rotation, Solar and Stellar Physics
Information
Symposium - International Astronomical Union , Volume 215: Stellar Rotation , 2004 , pp. 376 - 377
Copyright
Copyright © Astronomical Society of the Pacific 2004