THE EVOLUTION OF THE MAGNETIC-FIELDS OF NEUTRON-STARS

被引：8

作者：

BHATTACHARYA, D

机构：

[1] Raman Research Institute, Bangalore

来源：

JOURNAL OF ASTROPHYSICS AND ASTRONOMY | 1995年 / 16卷 / 02期

关键词：

NEUTRON STARS; PULSARS; MAGNETIC FIELD;

D O I：

10.1007/BF02714836

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Observational evidence, and theoretical models of the magnetic field evolution of neutron stars is discussed. Observational data indicates that the magnetic field of a neutron star decays significantly only if it has been a member of a close interacting binary. Theoretically, the magnetic field evolution has been related to the processing of a neutron star in a binary system through the spin evolution of the neutron star, and also through the accretion of matter on the neutron star surface. I describe two specific models, one in which magnetic flux is expelled from the superconducting core during spin-down, via a copuling between Abrikosov fluxoids and Onsager-Feynman vortices; and another in which the compression and heating of the stellar crust by the accreted mass drastically reduces the ohmic decay time scale of a magnetic field configuration confined entirely to the crust. General remarks about the behaviour of the crustal field under ohmic diffusion are also made.

引用

页码：217 / 232

页数：16

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