Neutrino Luminosity by the Ordinary Urca Process in an Intense Magnetic Field
Abstract
The neutrino luminosity by the ordinary URCA process in a strongly magnetized electron gas is computed. General formulae are presented for the URCA energy loss rates for an arbitrary degree of degeneracy. Analytic expressions are derived for a completely degenerate, relativistic electron plasma in the special case of neutronproton conversion. Numerical results are given for more general cases. The main results are as follows: the URCA energy loss rates are drastically reduced for the regime of great degeneracy by a factor up to 10^{3} for Θ≅1, andT _{9}≲10, where Θ=H/H _{ q },H _{ q }=m ^{2} c ^{3}/eh=4.414×10^{13} G. In the nondegenerate regime the neutrino luminosity is enhanced approximately linearly with Θ for the temperature range 1≲T _{9}≲10. Possible applications to white dwarfs and neutron stars are briefly discussed.
 Publication:

Astrophysics and Space Science
 Pub Date:
 February 1971
 DOI:
 10.1007/BF00704085
 Bibcode:
 1971Ap&SS..10..246C