論文

査読有り
2012年8月7日

Stably stratified magnetized stars in general relativity

Physical Review D - Particles, Fields, Gravitation and Cosmology
  • Shijun Yoshida
  • ,
  • Kenta Kiuchi
  • ,
  • Masaru Shibata

86
4
記述言語
英語
掲載種別
DOI
10.1103/PhysRevD.86.044012

We construct magnetized stars composed of a fluid stably stratified by entropy gradients in the framework of general relativity, assuming ideal magnetohydrodynamics and employing a barotropic equation of state. We first revisit basic equations for describing stably stratified stationary axisymmetric stars containing both poloidal and toroidal magnetic fields. As sample models, the magnetized stars considered by Ioka and Sasaki, inside which the magnetic fields are confined, are modified to the ones stably stratified. The magnetized stars newly constructed in this study are believed to be more stable than the existing relativistic models because they have both poloidal and toroidal magnetic fields with comparable strength, and magnetic buoyancy instabilities near the surface of the star, which can be stabilized by the stratification, are suppressed. © 2012 American Physical Society.

リンク情報
DOI
https://doi.org/10.1103/PhysRevD.86.044012
arXiv
http://arxiv.org/abs/arXiv:1207.1942
URL
http://arxiv.org/abs/1207.1942v1
URL
http://arxiv.org/pdf/1207.1942v1 本文へのリンクあり
ID情報
  • DOI : 10.1103/PhysRevD.86.044012
  • ISSN : 1550-7998
  • ISSN : 1550-2368
  • arXiv ID : arXiv:1207.1942
  • SCOPUS ID : 84864917712

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