paper

Type II superconductivity and magnetic flux transport in neutrons stars

arXiv:astro-ph/0510396 · doi:10.1111/j.1365-2966.2005.09724.x

Abstract

The transition to a type II proton superconductor which is believed to occur in a cooling neutron star is accompanied by changes in the equation of hydrostatic equilibrium and by the formation of proton vortices with quantized magnetic flux. Analysis of the electron Boltzmann equation for this system and of the proton supercurrent distribution formed at the transition leads to the derivation of a simple expression for the transport velocity of magnetic flux in the liquid interior of a neutron star. This shows that flux moves easily as a consequence of the interaction between neutron and proton superfluid vortices during intervals of spin-down or spin-up in binary systems. The differences between the present analysis and those of previous workers are reviewed and an error in the paper of Jones (1991) is corrected.

arXiv comment7 pages, no figures. To be published in Monthly Notices of the Royal Astronomical Society

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