Electron neutrino and antineutrino spectra associated with neutron star formation

Details Electron neutrino and antineutrino spectra associated with neutron star formation Electron neutrino and antineutrino spectra associated with neutron star formation

Feb 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980azh....57...78n&link_type=abstract

Astronomicheskii Zhurnal, vol. 57, no. 1, 1980, p. 78-89. In Russian.

Statistics

17

Antineutrinos, Energy Spectra, Gravitational Collapse, Neutrinos, Neutron Stars, Star Formation, Emission Spectra, Fermi-Dirac Statistics, High Energy Electrons, Hot Stars, Muons, Spectrum Analysis

Scientific paper

The spectra of electron neutrinos and antineutrinos emitted by collapsing stellar nuclei have been calculated. The obtained spectra can be approximated by a simple analytical expression, which at high energies differs from the Fermi-Dirac distribution of zero chemical potential by an additional cutoff factor. The mean electron neutrino and antineutrino energies are found to be about 10 MeV and 13 MeV respectively. It is shown that the spectra are largely due to neutrino and antineutrino absorption by free nucleons.

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