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Unified equation of state for neutron stars and supernova cores using the nuclear energy-density functional theory

par Fantina, Anthea ;Chamel, Nicolas ;Pearson, Michael J.;Goriely, Stéphane
Référence Journal of physics. Conference series, 342, page (012003)
Publication Publié, 2012

Article révisé par les pairs

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Résumé :

We present a unified approach to the equation of state (EoS) of dense matter at any temperature, based on the nuclear energy-density functional (EDF) theory. Both homogeneous and inhomogeneous phases can be treated consistently. In particular, we have constructed three different EoSs of cold catalyzed matter for a wide range of densities from ~ 10^5 g cm−3 to ~ 10^15 g cm−3. For this purpose, we have employed generalized Skyrme functionals fitted to essentially all experimental nuclear mass data and constrained to reproduce properties of homogeneous nuclear matter as obtained from many-body calculations. We have applied these unified EoSs to compute the structure of cold isolated neutron stars (NSs).