Velocity-dependent energy gaps and dynamics of superfluid neutron stars

Abstract

We show that suppression of the baryon energy gaps, caused by the relative motion of superfluid and normal liquid components, can substantially influence dynamical properties and evolution of neutron stars. This effect has been previously ignored in the neutron-star literature.

6 pages, 5 figures, accepted by MNRAS Lett

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• Numerical models for stationary superfluid neutron stars in general relativity with realistic equations of state
• Anti-glitches within the standard scenario of pulsar glitches
• Relativistic formulation of the Hall-Vinen-Bekarevich-Khalatnikov superfluid hydrodynamics
• ${}^1$S${}_0$ pairing gaps, chemical potential and entrainment matrix in superfluid neutron-star cores for the Brussels-Montreal functionals
• Three evolutionary paths for magnetar oscillations
• The freedom to choose neutron star magnetic field equilibria
• The entrainment matrix of a superfluid nucleon mixture at finite temperatures
• Entrainment effects in neutron-proton mixtures within the nuclear-energy density functional theory. II. Finite temperatures and arbitrary currents
• Nonlinear approach to the entrainment matrix of superfluid nucleon mixture at zero temperature
• Gapless superfluidity in neutron stars: Thermal properties
• Gapless superfluidity in neutron stars: Normal-fluid fraction
• Gap-bridging enhancement of modified Urca processes in nuclear matter
• Diffusion in superfluid Fermi mixtures: General formalism