Ohmic decay of magnetic flux expelled from neutron star interiors

被引：21

作者：

Bhattacharya, D ^{[1
]}

Datta, B ^{[1
]}

机构：

[1] INDIAN INST ASTROPHYS, BANGALORE 560034, KARNATAKA, INDIA

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 1996年 / 282卷 / 03期

关键词：

magnetic fields; stars; neutron; pulsars; general;

D O I：

10.1093/mnras/282.3.1059

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We study Ohmic diffusion of magnetic flux expelled from the superconducting core of a neutron star to its crust owing to spindown-induced field evolution. We rind that Ohmic decay time-scales in the range 10(7.5)-10(9) yr obtain for a wide range of crustal temperatures and impurity concentrations for various equation of state models of neutron star matter. This result is in agreement with the Ohmic time-scale that appears to be required to explain observed magnetic field strengths of isolated and binary neutron stars in the spindown-induced magnetic flux expulsion scenario.

引用

页码：1059 / 1063

页数：5

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