Analytical representations of unified equations of state of neutron-star matter

Autor:	Pawel Haensel, Alexander Potekhin
Rok vydání:	2004
Předmět:	Space and Planetary Science Astrophysics::High Energy Astrophysical Phenomena Nuclear Theory Astrophysics (astro-ph) FOS: Physical sciences Astronomy and Astrophysics Astrophysics Nuclear Experiment Physics::Geophysics
Zdroj:	Astronomy & Astrophysics. 428:191-197
ISSN:	1432-0746 0004-6361
DOI:	10.1051/0004-6361:20041722
Popis:	Analytical representations are derived for two equations of state (EOSs) of neutron-star matter: FPS and SLy. Each of these EOSs is unified, that is, it describes the crust and the core of a neutron star using the same physical model. Two versions of the EOS parametrization are considered. In the first one, pressure and mass density are given as functions of the baryon density. In the second version, pressure, mass density, and baryon density are given as functions of the pseudo-enthalpy, which makes this representation particularly useful for 2-D calculations of stationary rotating configurations of neutron stars. Comment: 7 pages, 5 figures, 3 tables, accepted by A&A. In v.2, auxiliary fits (15) and (16) are corrected
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::75cabce743737b9e6ed0530218a26b38 https://doi.org/10.1051/0004-6361:20041722 Zobrazit plný text záznamu