Collective excitations in neutron-star crusts

6th Nuclear Physics in Astrophysics

物理学;天文学

Chamel, N.^1 ; Page, D.^2 ; Reddy, S.^3

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

1050, Belgium^1

Instituto de Astronomía, Universidad Nacional Autonóma de México, Mexico D.F.

04510, Mexico^2

Institute for Nuclear Theory, University of Washington, Seattle

WA

98195, United States^3

关键词: Atomic mass;    Collective excitations;    Energy density functional theory;    Inner region;    Low-energy collective excitations;    Neutron stars;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/665/1/012065/pdf
DOI  :  10.1088/1742-6596/665/1/012065

学科分类：天文学(综合)

来源: IOP

【 摘 要 】

We explore the spectrum of low-energy collective excitations in the crust of a neutron star, especially in the inner region where neutron-proton clusters are immersed in a sea of superfluid neutrons. The speeds of the different modes are calculated systematically from the nuclear energy density functional theory using a Skyrme functional fitted to essentially all experimental atomic mass data.