Magnetohydrodynamic equilibria in barotropic stars
Abstract
Although barotropic matter does not constitute a realistic model for magnetic stars, it would be interesting to confirm a recent conjecture that states that magnetized stars with a barotropic equation of state would be dynamically unstable (Reisenegger 2009). In this work we construct a set of barotropic equilibria, which can eventually be tested using a stability criterion. A general description of the ideal MHD equations governing these equilibria is summarized, allowing for both poloidal and toroidal magnetic field components. A new finite-difference numerical code is developed in order to solve the so-called Grad-Shafranov equation describing the equilibrium of these configurations, and some properties of the equilibria obtained are briefly discussed.
Cite
@article{arxiv.1305.0592,
title = {Magnetohydrodynamic equilibria in barotropic stars},
author = {Cristobal Armaza and Andreas Reisenegger and Juan Alejandro Valdivia and Pablo Marchant},
journal= {arXiv preprint arXiv:1305.0592},
year = {2015}
}
Comments
Conference Proceedings, Magnetic Fields in the Universe IV (2013)