Equation of State of Supernova Matter

Details Equation of State of Supernova Matter Equation of State of Supernova Matter

Feb 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985pthph..73..367o&link_type=abstract

Progress of Theoretical Physics, Vol. 73, No. 2, pp. 367-373

Physics

Scientific paper

We have calculated the equation of state of the supernova matter for values of lepton fraction YL and entropy per nucleon s by using the finite temperature Thomas-Fermi model of nuclei. The pressure is dominated by degenerate pressure of leptons and the adiabatic idex γ stays around 4/3. However, γ decreases by the effect of the nuclear force at the very high density region. Although the nuclei melt at rather low density, about 1013.9 gcm-3 in this calculation, the comparison with a Hartree-Fock calculation reveals that the further investigation should be done to clarify the phase transition from nuclear phase of nucleon to homogeneous phase.

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