Magnetohydrodynamic equilibria in barotropic starsReport as inadecuate

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Although barotropic matter does not constitute a realistic model for magnetic stars, it would be interestingto con rm a recent conjecture that states that magnetized stars with a barotropic equation of state would bedynamically unstable Reisenegger 2009. In this work we construct a set of barotropic equilibria, which caneventually be tested using a stability criterion. A general description of the ideal MHD equations governingthese equilibria is summarized, allowing for both poloidal and toroidal magnetic eld components. A new nite-di erence numerical code is developed in order to solve the so-called Grad-Shafranov equation describingthe equilibrium of these con gurations, and some properties of the equilibria obtained are briey discussed.Nota general

To appear in -Magnetic Fields in the Universe IV 2013-

Author: Armaza, C.; - Reisenegger, A.; - Valdivia, J. A.; - Marchant, P.; -



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