Bound-neutrino sphere and spontaneous neutrino-pair creation in cold neutron stars

Details Bound-neutrino sphere and spontaneous neutrino-pair creation in cold neutron stars Bound-neutrino sphere and spontaneous neutrino-pair creation in cold neutron stars

Jan 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990phrvl..64..115l&link_type=abstract

Physical Review Letters (ISSN 0031-9007), vol. 64, Jan. 8, 1990, p. 115-118.

Physics

22

Energetic Particles, Neutrinos, Neutron Stars, Particle Mass, Kinetic Energy, Stellar Orbits, Supernova Remnants

Scientific paper

It is shown that neutrinos produced with kinetic energies below about 50 eV in a supernova have bound orbits in the remnant neutron star. The binding is mediated by a radial weak-interaction force, caused by a gradient in the collective weak potential of the neutrons in the star. This force is also able to spontaneously create neutrino-antineutrino pairs. If the bound-neutrino sphere is not fully degenerate at low momenta, a cold neutron star will shine continuously antineutrinos with energy less than 50 eV, as a result of the density gradient in it.

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