Baryon superfluidity and neutrino emissivity of neutron stars

Abstract

For neutron stars with hyperon-mixed core, neutrino emissivity is studied under the equation of state, obtained by introducing repulsive three-body force universal for all baryons so as to assure the maximum mass compatible with the observation. By paying attention to the density-dependence of critical temperatures of baryon superfluids, which reflect the nature of baryon-baryon interaction and control neutron star cooling, we show what neutrino emission processes are efficient in the regions with and without hyperon mixing and remark its implications related to neutron star cooling.

5pages, 4 figures

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• Nuclear medium cooling scenario in the light of new Cas A cooling data and the 2 M_sun pulsar mass measurements
• Medium Effects in Cooling of Neutron Stars and $3P_2$ Neutron Gap
• Influence of the stiffness of the equation of state and in-medium effects on the cooling of compact stars
• The needle in the haystack - Where to look for more isolated cooling neutron stars
• Cooling of neutron stars in "nuclear medium cooling scenario" with stiff equation of state including hyperons
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• Model-independent constraints on superfluidity from the cooling neutron star in Cassiopeia A
• Thermal evolution of neutron stars in soft X-ray transients with thermodynamically consistent models of the accreted crust
• Constraints on neutron star superfluidity from the cooling neutron star in Cassiopeia A using all Chandra ACIS-S observations
• Impacts of the direct URCA and Superfluidity inside a Neutron Star on Type-I X-Ray Bursts and X-Ray Superbursts
• Middle aged $\gamma$-ray pulsar J1957+5033 in X-rays: pulsations, thermal emission and nebula
• The entrainment matrix of a superfluid nucleon mixture at finite temperatures
• Fast neutrino cooling in the accreting neutron star MXB 1659-29
• ^{1}S_{0} proton superfluidity in neutron star matter: Impact of bulk properties
• Brightness constraint for cooling models of young neutron stars
• Vector-boson condensates, spin-triplet superfluidity of paired neutral and charged fermions, and $3P_2$ pairing of nucleons
• Hybrid cooling of the Cassiopeia A neutron star
• Cooling of Isolated Neutron Stars with Pion Condensation: Possible Fast Cooling in a Low-Symmetry-Energy Model
• XMM-Newton observations of PSR J0554+3107: pulsing thermal emission from a cooling high-mass neutron star
• Structure and cooling of compact stars
• An Investigation into Surface Temperature Distributions of High-B Pulsars
• Instability windows of relativistic r-modes in stably stratified neutron stars with hyperonic cores
• First detection of X-ray pulsations and spectrum of the high Galactic latitude pulsar PSR J0837-2454 and direct Urca cooling implications