New Results for Relevant Neutrino Emission in Superfluid Neutron Star Matter

Details New Results for Relevant Neutrino Emission in Superfluid Neutron Star Matter New Results for Relevant Neutrino Emission in Superfluid Neutron Star Matter

Aug 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998apj...502l.153p&link_type=abstract

Astrophysical Journal Letters v.502, p.L153

Astronomy and Astrophysics

Astronomy

3

Conduction, Dense Matter, Nuclear Reactions, Nucleosynthesis, Abundances, Stars: Interiors, Stars: Neutron

Scientific paper

We evaluate exactly the suppression in superfluid neutron star matter of the neutrino emission due to the modified Urca process. Corresponding to realistic parameters for the neutron superfluid in the core, the reduced emissivity is found to be 1-3 orders of magnitude larger than that given by the approximate expressions used so far in the literature. We show that this effect has significant observable consequences on the evolution of the surface temperature of the star, whether or not any rapid cooling occurs in the deepest regions of the core. These results should be taken into account in realistic cooling calculations.

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