paper

Type-I superconductivity and neutron star precession

arXiv:astro-ph/0408467 · doi:10.1103/PhysRevD.71.083003

Abstract

Type-I proton superconducting cores of neutron stars break up in a magnetic field into alternating domains of superconducting and normal fluids. We examine two channels of superfluid-normal fluid friction where (i) rotational vortices are decoupled from the non-superconducting domains and the interaction is due to the strong force between protons and neutrons; (ii) the non-superconducting domains are dynamically coupled to the vortices and the vortex motion generates transverse electric fields within them, causing electronic current flow and Ohmic dissipation. The obtained dissipation coefficients are consistent with the Eulerian precession.

v1: 10 pages, 1 figure; v2: 6 pages, 1 figure, to appear in Phys. Rev. D

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