Nuclear many-body approach for supernova EOS: Thomas-fermi calculations of non-uniform nuclear matter

Hiroaki Kanzawa; Kazuhiro Oyamatsu; Kohsuke Sumiyoshi; Masatoshi Takano

Nuclear many-body approach for supernova EOS: Thomas-fermi calculations of non-uniform nuclear matter

Hiroaki Kanzawa, Kazuhiro Oyamatsu, Kohsuke Sumiyoshi, Masatoshi Takano

School of Advanced Science and Engineering

Research output: Contribution to journal › Conference article › peer-review

Abstract

An equation of state (EOS) for uniform nuclear matter is constructed at zero and finite temperatures with the variational method starting from the realistic nuclear Hamiltonian composed of the AV18 two-body potential and the UIX three-body potential. The maximum mass of the cold neutron star with this EOS is 2.2 M_⊙. Making use of uncertainty of the three-body nuclear force, adjustable parameters in the EOS are tuned so that the Thomas-Fermi calculations for β-stable nuclei reproduce the empirical data. The obtained EOS is appropriate for constructing a new nuclear EOS table for supernova simulations.

Original language	English
Journal	Proceedings of Science
Publication status	Published - 2008 Dec 1
Event	10th Symposium on Nuclei in the Cosmos, NIC 2008 - Mackinac Island, MI, United States Duration: 2008 Jul 27 → 2008 Aug 1

ASJC Scopus subject areas

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@article{cb53002e8212416187b32335a9a98aaa,

title = "Nuclear many-body approach for supernova EOS: Thomas-fermi calculations of non-uniform nuclear matter",

abstract = "An equation of state (EOS) for uniform nuclear matter is constructed at zero and finite temperatures with the variational method starting from the realistic nuclear Hamiltonian composed of the AV18 two-body potential and the UIX three-body potential. The maximum mass of the cold neutron star with this EOS is 2.2 M⊙. Making use of uncertainty of the three-body nuclear force, adjustable parameters in the EOS are tuned so that the Thomas-Fermi calculations for β-stable nuclei reproduce the empirical data. The obtained EOS is appropriate for constructing a new nuclear EOS table for supernova simulations.",

author = "Hiroaki Kanzawa and Kazuhiro Oyamatsu and Kohsuke Sumiyoshi and Masatoshi Takano",

year = "2008",

month = dec,

day = "1",

language = "English",

journal = "Proceedings of Science",

issn = "1824-8039",

publisher = "Sissa Medialab Srl",

note = "10th Symposium on Nuclei in the Cosmos, NIC 2008 ; Conference date: 27-07-2008 Through 01-08-2008",

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TY - JOUR

T1 - Nuclear many-body approach for supernova EOS

T2 - 10th Symposium on Nuclei in the Cosmos, NIC 2008

AU - Kanzawa, Hiroaki

AU - Oyamatsu, Kazuhiro

AU - Sumiyoshi, Kohsuke

AU - Takano, Masatoshi

PY - 2008/12/1

Y1 - 2008/12/1

N2 - An equation of state (EOS) for uniform nuclear matter is constructed at zero and finite temperatures with the variational method starting from the realistic nuclear Hamiltonian composed of the AV18 two-body potential and the UIX three-body potential. The maximum mass of the cold neutron star with this EOS is 2.2 M⊙. Making use of uncertainty of the three-body nuclear force, adjustable parameters in the EOS are tuned so that the Thomas-Fermi calculations for β-stable nuclei reproduce the empirical data. The obtained EOS is appropriate for constructing a new nuclear EOS table for supernova simulations.

AB - An equation of state (EOS) for uniform nuclear matter is constructed at zero and finite temperatures with the variational method starting from the realistic nuclear Hamiltonian composed of the AV18 two-body potential and the UIX three-body potential. The maximum mass of the cold neutron star with this EOS is 2.2 M⊙. Making use of uncertainty of the three-body nuclear force, adjustable parameters in the EOS are tuned so that the Thomas-Fermi calculations for β-stable nuclei reproduce the empirical data. The obtained EOS is appropriate for constructing a new nuclear EOS table for supernova simulations.

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M3 - Conference article

AN - SCOPUS:84887290669

JO - Proceedings of Science

JF - Proceedings of Science

SN - 1824-8039

Y2 - 27 July 2008 through 1 August 2008

ER -