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Extended Skyrme equation of state in asymmetric nuclear matter

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JournalAstronomy & Astrophysics
DateE-pub ahead of print - 23 Dec 2015
DatePublished (current) - Jan 2016
Volume585
Number of pages11
Early online date23/12/15
Original languageEnglish

Abstract

We present a new equation of state for infinite systems (symmetric, asymmetric, and neutron matter) based on an extended Skyrme functional that has been constrained by microscopic Brueckner-Bethe-Goldstone results. The resulting equation of state reproduces the main features of microscopic calculations very accurately and is compatible with recent measurements of two times Solar-mass neutron stars. We provide all necessary analytical expressions to facilitate a quick numerical implementation of quantities of astrophysical interest.

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