URCA Processes in Dense Matter and Neutron Star Cooling

Details URCA Processes in Dense Matter and Neutron Star Cooling URCA Processes in Dense Matter and Neutron Star Cooling

Nov 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995ssrv...74..427h&link_type=abstract

Space Science Reviews, Volume 74, Issue 3-4, pp. 427-436

Astronomy and Astrophysics

Astrophysics

1

Dense Matter, Neutron Stars

Scientific paper

Urca-processes were introduced into astrophysics by Gamow and Schoenberg in 1941. Neutrino cooling resulting from urca-processes plays an important role at the latest stages of evolution of massive stars. Recent work on neutrino emissivity of dense matter shows that neutrino cooling via urca-processes could determine the thermal evolution of young neutron stars and depends dramatically on the composition of the neutron star core. In particular, if a neutron star contains a central core in which the “direct urca-process” is operative, the cooling timescale shortens by many orders of magnitude.

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