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Cooling of neutron stars with strong toroidal magnetic fields

  • Dany PageEmail author
  • Ulrich Geppert
  • Manfred Küker
Conference paper

Abstract

We present models of temperature distribution in the crust of a neutron star in the presence of a strong toroidal component superposed to the poloidal component of the magnetic field. The presence of such a toroidal field hinders heat flow toward the surface in a large part of the crust. As a result, the neutron star surface presents two warm regions surrounded by extended cold regions and has a thermal luminosity much lower than in the case the magnetic field is purely poloidal. We apply these models to calculate the thermal evolution of such neutron stars and show that the lowered photon luminosity naturally extends their life-time as detectable thermal X-ray sources.

Keywords

Neutron star Magnetic field 

PACS

97.60.Jd 26.60.+c 95.30.Tg 

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Copyright information

© Springer 2007

Authors and Affiliations

  1. 1.Departamento de Astrofísica Teórica, Instituto de AstronomíaUniversidad Nacional Autónoma de MéxicoMexicoMexico
  2. 2.Departament de Física AplicadaUniversitat d’AlacantAlacantSpain
  3. 3.Astrophysikalisches Institut PotsdamPotsdamGermany

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