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Nuclear Physics A 789 (2007) 403-425
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Isospin-dependent clusterization of Neutron-Star Matter
C. Ducoin1, 2, Philippe Chomaz1, F. Gulminelli2

Because of the presence of a liquid-gas phase transition in nuclear matter, compact-star matter can present a region of instability against the formation of clusters. We investigate this phase separation in a matter composed of neutrons, protons and electrons, within a Skyrme-Lyon mean-field approach. Matter instability and phase properties are characterized through the study of the free-energy curvature. The effect of beta-equilibrium is also analyzed in detail, and we show that the opacity to neutrinos has an influence on the presence of clusterized matter in finite-temperature proto-neutron stars.
1 :  GANIL - Grand Accélérateur National d'Ions Lourds
2 :  LPCC - Laboratoire de Physique Corpusculaire de Caen
Physique théorique
Physique/Physique Nucléaire Théorique

Physique/Astrophysique/Cosmologie et astrophysique extra-galactique

Planète et Univers/Astrophysique
nuclear matter – star matter – liquid-gas phase transition – matter clusterization
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