Extended Skyrme equation of state in asymmetric nuclear matter

被引:20
作者
Davesne, D. [1 ]
Pastore, A. [2 ]
Navarro, J. [3 ]
机构
[1] Univ Lyon 1, CNRS, Inst Phys Nucl Lyon, UMR 5822,IN2P3, 43 Bd 11 Novembre 1918, F-69622 Villeurbanne, France
[2] CEA, DAM, DIF, F-91297 Arpajon, France
[3] Univ Valencia, CSIC, IFIC, Apartado Postal 22085, Valencia 46071, Spain
来源
ASTRONOMY & ASTROPHYSICS | 2016年 / 585卷
关键词
dense matter; equation of state; NEUTRON-STARS; DENSE MATTER; MAGNETIC-SUSCEPTIBILITY; 3-BODY FORCES; MODELS; SURFACE; RADII; CRUST;
D O I
10.1051/0004-6361/201526720
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
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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页数:11
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