Impact of the symmetry energy on the outer crust of non-accreting neutron stars

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dc.creatorRoca-Maza, X.
dc.creatorPiekarewicz, J.
dc.date2008-05-16
dc.date.accessioned2026-07-07T11:50:52Z
dc.date.available2026-07-07T11:50:52Z
dc.descriptionThe composition and equation of state of the outer crust of non-accreting neutron stars is computed using accurate nuclear mass tables. The main goal of the present study is to understand the impact of the symmetry energy on the structure of the outer crust. First, a simple "toy model" is developed to illustrate the competition between the electronic density and the symmetry energy. Then, realistic mass tables are used to show that models with a stiff symmetry energy - those that generate large neutron skins for heavy nuclei - predict a sequence of nuclei that are more neutron-rich than their softer counterparts. This result may be phrased in the form of a correlation: the larger the neutron skin of 208Pb, the more exotic the composition of the outer crust.
dc.description21 pages, 8 figures, submitted to Physical Review C
dc.identifierhttps://arxiv.org/abs/0805.2553
dc.identifierhttp://arxiv.org/abs/0805.2553
dc.identifierPhys.Rev.C78:025807,2008
dc.identifierdoi:10.1103/PhysRevC.78.025807
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/203702
dc.subjectNuclear Theory
dc.subjectAstrophysics
dc.subjectGeneral Relativity and Quantum Cosmology
dc.subjectNuclear Experiment
dc.titleImpact of the symmetry energy on the outer crust of non-accreting neutron stars
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