Heterogeneity of solid neutronstar matter: transport coefficients and neutrino emissivity
Abstract
Calculations of weakinteraction transition rates and of nuclear formation enthalpies show that in isolated neutron stars, the solid phase, above the neutrondrip threshold, is amorphous and heterogeneous in nuclear charge. The neutrino emissivities obtained are very dependent on the effects of proton shell structure but may be several orders of magnitude larger than the electron bremsstrahlung neutrino pair emissivity at temperatures ~10^{9} K. In this phase, electrical and thermal conductivities are much smaller than for a homogeneous bcc lattice. In particular, the reduced electrical conductivity, which is also temperatureindependent, must have significant consequences for the evolution of highmultipole magnetic fields in neutron stars.
 Publication:

Monthly Notices of the Royal Astronomical Society
 Pub Date:
 July 2004
 DOI:
 10.1111/j.13652966.2004.07834.x
 arXiv:
 arXiv:astroph/0403400
 Bibcode:
 2004MNRAS.351..956J
 Keywords:

 dense matter: stars: neutron: pulsars: general;
 Astrophysics
 EPrint:
 12 pages LaTeX 6 eps figures, to be published in MNRAS