Effects of the symmetry energy slope on the axial oscillations of neutron stars

被引：5

作者：

Wen De-Hua ^{[1
]}

Zhou Ying ^{[1
]}

机构：

[1] S China Univ Technol, Dept Phys, Guangzhou 510641, Peoples R China

来源：

CHINESE PHYSICS B | 2013年 / 22卷 / 08期

基金：

中国国家自然科学基金;

关键词：

symmetry energy; neutron star; oscillation; EQUATION-OF-STATE; MODES;

D O I：

10.1088/1674-1056/22/8/080401

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The impact of symmetry energy slope L on the axial w-mode oscillations is explored, where the range of the constrained slope L of symmetry energy at saturation density is adopted from 25 MeV to 115 MeV while keeping the equation of state (EOS) of symmetric nuclear matter fixed. Based on the range of the symmetry energy slope, a constraint on the frequency and damping time of the w(I)-mode of the neutron star is given. It is found that there is a perfect linear relation between the frequency and the stellar mass for a fixed slope L, and the softer symmetry energy corresponds to a higher frequency. Moreover, it is confirmed that both the frequencies and damping times have a perfect universal scaling behavior for the EOSs with different symmetry energy slopes at saturation density.

引用

页数：4

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