Transport of neutrinos in hot neutron-star matter

Details Transport of neutrinos in hot neutron-star matter Transport of neutrinos in hot neutron-star matter

Jun 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979apj...230..859s&link_type=abstract

Astrophysical Journal, Part 1, vol. 230, June 15, 1979, p. 859-869. NSF-supported research.

Astronomy and Astrophysics

Astrophysics

46

Hot Stars, Neutrinos, Neutron Stars, Opacity, Thermonuclear Reactions, Transport Properties, Angular Momentum, Fermi Surfaces, Mass Transfer, Optical Paths, Thermodynamic Equilibrium

Scientific paper

In the present paper, the neutrino opacity of neutron stars from the charged-current and the neutral-current processes is calculated. For temperatures of a few MeV, the mean free path of even zero-energy neutrinos is found to be smaller than the radius of a neutron star. The mean opacity appropriate to the diffusion limit of the Boltzmann equation is calculated, and the characteristic cooling time for a hot (10 MeV) neutron star is found to be about 1 min.

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