Transport coefficients in neutron star cores in BHF approach. Comparison of different nucleon potentials

Abstract

Thermal conductivity and shear viscosity of npe$\mu$ matter in non-superfluid neutron star cores are considered in the framework of Brueckner-Hartree-Fock many-body theory. We extend our previous work (Shternin, Baldo and Haensel, 2013) by analysing different nucleon-nucleon potentials and different three-body forces. We find that the use of different potentials leads up to one order of magnitude variations in the values of the nucleon contribution to transport coefficients. The nucleon contribution dominates the thermal conductivity, but for all considered models the shear viscosity is dominated by leptons.

4 pages, 2 figures; in v.2 misprints in eqs. (5)-(9) corrected

References in corpus (3)

• Shear viscosity in neutron star cores
• Nucleon effective masses within the Brueckner-Hartree-Fock theory: Impact on stellar neutrino emission
• Electron-muon heat conduction in neutron star cores via the exchange of transverse plasmons

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