Numerical simulations of magnetic relaxation in rotating stellar radiation zones

Details Numerical simulations of magnetic relaxation in rotating stellar radiation zones Numerical simulations of magnetic relaxation in rotating stellar radiation zones

Dec 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011sf2a.conf..475d&link_type=abstract

SF2A-2011: Proceedings of the Annual meeting of the French Society of Astronomy and Astrophysics Eds.: G. Alecian, K. Belkacem,

Astronomy and Astrophysics

Astrophysics

Stars: Magnetic Fields, Magnetohydrodynamics (Mhd)

Scientific paper

I detail the results of simulations of magnetic relaxation, as is assumed to happen in stellar radiation zones. While previous studies focused on the description of static equilibria, rotation is here included in the numerical setup which substantially modifies the outcome of the simulations. In particular, magnetic equilibria are found, whose configuration remain stable over diffusive timescales. Their privileged axis are inclined with respect to the rotation axis. The stationary internal flows and the dependence of the final equilibrium state on the rotation rate are described. Implications on stellar evolution are discussed.

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