| HAL : hal-00001067, version 2 |
| arXiv : astro-ph/0401545 |
| DOI : 10.1103/PhysRevC.70.028801 |
| Fiche détaillée | Récupérer au format |
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| Physical Review C 70 (2004) 028801 |
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| Versions disponibles : | v1 (26-01-2004) | v2 (11-03-2004) |
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| Nuclear liquid-gas phase transition and supernovae evolution |
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| Jerome Margueron1Jesus Navarro2Patrick Blottiau3 |
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| (2004) |
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| It is shown that the large density fluctuations appearing at the onset of the first order nuclear liquid-gas phase transition can play an important role in thesupernovae evolution. Due to these fluctuations, the neutrino gas may betrapped inside a thin layer of matter near the proto-neutron star surface. The resulting increase of pressure may induce strong particle ejection a few hundred milliseconds after the bounce of the collapse, contributing to the revival of the shock wave. The Hartree-Fock+RPA scheme, with a finite-range nucleon-nucleon effective interaction, is employed to estimate the effects of the neutrino trapping due to the strong density fluctuations, and to discuss qualitatively the consequences of the suggested new scenario. |
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| 1 : | GANIL - Grand Accélérateur National d'Ions Lourds |
| 2 : | IFIC - Instituto de Fisica Corpuscular |
| 3 : | DPTA - Département de Physique Théorique et Appliquée |
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| Domaine | : | Physique/Astrophysique/Cosmologie et astrophysique extra-galactique Physique/Physique Nucléaire Théorique Planète et Univers/Astrophysique |
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| neutrinos – supernovae – phase transition – nuclear matter |
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| Liste des fichiers attachés à ce document : | ||||||||||
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| hal-00001067, version 2 | |
| http://hal.archives-ouvertes.fr/hal-00001067 | |
| oai:hal.archives-ouvertes.fr:hal-00001067 | |
| Contributeur : Jerome Margueron | |
| Soumis le : Jeudi 11 Mars 2004, 12:01:40 | |
| Dernière modification le : Lundi 26 Juin 2006, 13:33:02 | |