Joule heating in high magnetic field pulsars

被引:13
|
作者
Urpin, V. [1 ,2 ,3 ]
Konenkov, D. [2 ,3 ]
机构
[1] Univ Alacant, Dept Fis Aplicada, Alacant 03080, Spain
[2] AF Ioffe Phys Tech Inst, St Petersburg 194021, Russia
[3] Isaac Newton Inst Chile, Branch St Petersburg, St Petersburg 194021, Russia
关键词
magnetohydrodynamics (MHD); stars : neutron; stars : magnetic fields; stars : pulsars : general;
D O I
10.1051/0004-6361:20078553
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
Aims. We study the efficiency of Joule heating in the crustal layers of young neutron stars. Methods. The induction equation is solved numerically for a realistic crust model with a conductivity that depends on the density and temperature. Results. We show that dissipation of the magnetic field is highly inhomogeneous in the crust with much faster dissipation in relatively low density layers. In young neutron stars, the rate of Joule heating in the crust can exceed the standard luminosity of non-magnetic stars and can even be comparable to the luminosity of magnetars. Conclusions. The results of calculations are compared with the available observational data. We argued that the crustal field model can well account for the data on the surface temperature and magnetic field of young neutron stars.
引用
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页码:223 / 230
页数:8
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