科研之友
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摘要
The spectral emission of neutrinos from a plasma in nuclear statistical equilibrium (NSE) is investigated. Particular attention is paid to the possible emission of high-energy (>10 MeV) neutrinos or antineutrinos. A newly developed numerical approach for describing the abundances of nuclei in NSE is presented. Neutrino emission spectra, resulting from general Fuller-Fowler-Newman conditions, are analyzed. Regions of T-rho-Y(e) space favoring detectability are selected. The importance of critical Y(e) values with zero net rate of neutronization (Y(e)) is discussed. Results are provided for the processing of matter under conditions typical for thermonuclear and core-collapse supernovae, presupernova stars, and neutron star mergers.
- 出版日期2009-10
