Symmetry energy from nuclear masses and neutron-star observations using generalised Skyrme functionals

6th Nuclear Physics in Astrophysics

物理学;天文学

Chamel, N.^1 ; Fantina, A.F.^1 ; Pearson, J.M.^2 ; Goriely, S.^1

Institut d'Astronomie et d'Astrophysique, Université Libre de Bruxelles, CP226, Brussels

1050, Belgium^1

Département de Physique, Université de Montréal, Montréal

QC

H3C 3J7, Canada^2

关键词: Equation of state;    Functionals;    Neutron matter;    Neutron stars;    Nuclear mass;    Symmetry energies;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/665/1/012066/pdf
DOI  :  10.1088/1742-6596/665/1/012066

学科分类：天文学(综合)

来源: IOP

【 摘 要 】

We study the constraints imposed by nuclear mass measurements and neutron-star observations on the symmetry energy. For this purpose, we use a family of unified equations of state of neutron-star interiors, based on generalised Skyrme functionals that were fitted to essentially all the experimental nuclear mass data while ensuring a realistic neutron-matter equation of state.