Protoneutron star cooling with a new equation of state

H. Suzuki*, H. Kogure, F. Tomioka, K. Sumiyoshi, S. Yamada, H. Shen

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


Using a new numerical EOS (equation of state) table calculated by Shen et d., we performed numerical simulations of protoneutron star cooling. The EOS is based on the relativistic mean field theory, and the parameters in its Lagrangian have been chosen to reproduce the experimental properties of both stable and unstable nuclei. Furthermore, the numerical table covers such a wide range of thermodynamical quantities (temperature, 0 ∼1OOMeV; electron fraction, 0 ∼ 0.56; density, 105.1 ∼ 1015.4g/cc) that cooling simulations even for 50 seconds could be done without troubles. The quasistatic evolution of protoneutron stars was investigated in detail with a numerical code including neutrino transfer (MGFLD scheme). Dependencies both on EOS and on initial models and implications to the SN1987A constraint on neutrino oscillation models are discussed.

Original languageEnglish
Pages (from-to)703-705
Number of pages3
JournalNuclear Physics A
Issue number1-2
Publication statusPublished - 2003 Jul 28

ASJC Scopus subject areas

  • Nuclear and High Energy Physics


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