dorsal/arxiv
View SchemaModern meson--exchange potential and superfluid neutron star crust matter
| Authors | Oe. Elgaroey, L. Engvik, E. Osnes, F. V. De Blasio, M. Hjorth-Jensen, G. Lazzari |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/9509035 |
| URL | https://arxiv.org/abs/nucl-th/9509035 |
| DOI | 10.1103/PhysRevD.54.1848 |
| Journal | Physical Review D 54 (1996) 1848-1851 |
Abstract
In this work we study properties of neutron star crusts, where matter is expected to consist of nuclei surrounded by superfluid neutrons and a homogeneous background of relativistic electrons. The nuclei are disposed in a Coulomb lattice, and it is believed that the structure of the lattice influences considerably the specific heat of the neutronic matter inside the crust of a neutron star. Using a modern meson--exchange potential in the framework of a local--density approximation we calculate the neutronic specific heat accounting for various shapes of the Coulomb lattice, from spherical to non--spherical nuclear shapes. We find that a realistic nucleon--nucleon potential leads to a significant increase in the neutronic specific heat with respect to that obtained assuming a uniform neutron distribution. The increase is largest for the non--spherical phase of the crust. These results may have consequences for the thermal history of young neutron stars.
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"abstract": "In this work we study properties of neutron star crusts, where matter is\nexpected to consist of nuclei surrounded by superfluid neutrons and a\nhomogeneous background of relativistic electrons. The nuclei are disposed in a\nCoulomb lattice, and it is believed that the structure of the lattice\ninfluences considerably the specific heat of the neutronic matter inside the\ncrust of a neutron star. Using a modern meson--exchange potential in the\nframework of a local--density approximation we calculate the neutronic specific\nheat accounting for various shapes of the Coulomb lattice, from spherical to\nnon--spherical nuclear shapes. We find that a realistic nucleon--nucleon\npotential leads to a significant increase in the neutronic specific heat with\nrespect to that obtained assuming a uniform neutron distribution. The increase\nis largest for the non--spherical phase of the crust. These results may have\nconsequences for the thermal history of young neutron stars.",
"arxiv_id": "nucl-th/9509035",
"authors": [
"Oe. Elgaroey",
"L. Engvik",
"E. Osnes",
"F. V. De Blasio",
"M. Hjorth-Jensen",
"G. Lazzari"
],
"categories": [
"nucl-th"
],
"doi": "10.1103/PhysRevD.54.1848",
"journal_ref": "Physical Review D 54 (1996) 1848-1851",
"title": "Modern meson--exchange potential and superfluid neutron star crust matter",
"url": "https://arxiv.org/abs/nucl-th/9509035"
},
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