Physics
Scientific paper
Oct 1994
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994pthph..92..779t&link_type=abstract
Progress of Theoretical Physics, Vol. 92, No. 4, pp. 779-802
Physics
12
Scientific paper
Dense supernova matter composed of n, p, e-, e+, νe and bar{ν}e is investigated in detail by solving self-consistently a set of finite-temperature Hartree-Fock equations with an effective nucleon interaction. The effective interaction includes a phenomenological three-nucleon interaction to assure the saturation property of symmetric nuclear matter. Results of thermodynamic quantities and mixing ratios of respective components are analyzed and tabulated for wide region of density (ρ = (1 - 6)ρ0) and temperature (T = (10 - 40) MeV) by choosing the lepton fraction Yl = (0.3, 0.35, 0.4). We discuss particular properties of the matter such as the constancy of composition, the large proton fraction expressed by Yp =~ (2/3)Yl + 0.05 and the stiffened equation of state, and also discuss remarkable features of hot neutron stars at birth such as the fat density profile and the increasing temperature toward the center. It is shown that these features are caused essentially by the effects of neutrino trapping to generate the high and constant lepton fraction and isentropic nature, the effects which are absent in neutron star matter.
Hiura J.
Nishizaki Shigeru
Takatsuka Tatsuyuki
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