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arXiv · 1009.5584

A first family of stable configurations to model magnetic fields in stellar radiation zones

V. Duez·J. Braithwaite·S. Mathis
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Abstract

We conduct 3D magneto-hydrodynamic (MHD) simulations in order to test the stability of the magnetic equilibrium configuration described by Duez & Mathis (2010). This analytically-derived configuration describes the lowest energy state for a given helicity in a stellar radiation zone. The necessity of taking into account the non force-free property of the large-scale, global field is here emphasized. We then show that this configuration is stable. It therefore provides a useful model to initialize the magnetic topology in upcoming MHD simulations and stellar evolution codes taking into account magneto-rotational transport processes.

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V. Duez, J. Braithwaite, S. Mathis. 2010-09-28. A first family of stable configurations to model magnetic fields in stellar radiation zones. https://doi.org/10.1017/s1743921311010222

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