Neutronization and thermal disintegration of dense stellar matter

Abstract

view Abstract Citations (42) References (11) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Neutronization and thermal disintegration of dense stellar matter. Epstein, R. I. ; Arnett, W. D. Abstract The properties of matter in nuclear statistical equilibrium are investigated over the range of density, temperature, and electron number 10 <% <% 1011 g , 2 x 10 <% T <% 4 X 1010, and 0.50 < Ye < 0.45; it is just this range of parameters which is relevant for stellar material subsequent to silicon burning. The ion number, the nuclear binding energy, and the rates of neutronization and energy emission by neutrinos have been calculated. The present results are compared with those of previous workers, and their accuracy is critically assessed. A simple phenomenological picture of the relevant physical processes is presented and is used to develop approximate expressions for the weak interaction rates and the thermodynamic properties of the matter. The approximate results are presented in a form which is suitable for numerical investigations. Subject headings: dense matter - interiors, stellar - nuclear reactions Publication: The Astrophysical Journal Pub Date: October 1975 DOI: 10.1086/153875 Bibcode: 1975ApJ...201..202E Keywords: Neutrinos; Neutron Stars; Nuclear Binding Energy; Nuclear Reactions; Stellar Evolution; Alpha Particles; Elementary Particles; Numerical Analysis; Statistical Analysis; Temperature Effects; Thermodynamic Properties; Astrophysics full text sources ADS |