Nuclear Energy Density Functionals and Neutron Star Properties

Paar, Nils and Moustakidis, Ch. C. and Lalazissis, G. A. and Marketin, Tomislav and Vretenar, Dario (2015) Nuclear Energy Density Functionals and Neutron Star Properties. Acta Physica Polonica B, 46 (3). pp. 369-378. ISSN 0587-4254

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Abstract

Recently, a method based on relativistic nuclear energy density functional (EDF) has been employed to study relations between collective excitations in finite nuclei with the nuclear matter symmetry energy, and the phase transition density nt and pressure Pt at the inner edge separating the liquid core and the solid crust of a neutron star. By using the thermodynamic method, relativistic EDF and experimental data on the properties of charge-exchange dipole transitions, isovector giant dipole and quadrupole resonances and pygmy dipole transitions, the neutron star liquid-to-solid phase transition density and pressure are constrained. The analysis shows that accurate measurements are necessary to further constrain the symmetry energy parameters and the structure of neutron star crust.

Item Type: Article
Keywords: neutron stars; energy density functional
Date: March 2015
Subjects: NATURAL SCIENCES > Physics
Divisions: Faculty of Science > Department of Physics
Project code: NEWFELPRO/ AstroEDF
Publisher: Jagiellonian University
Depositing User: Gordana Stubičan Ladešić
Date Deposited: 26 Mar 2017 16:52
Last Modified: 26 Mar 2017 16:52
URI: http://digre.pmf.unizg.hr/id/eprint/5472

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