Determination of the internal structure of neutron stars from gravitational wave spectra
Determination of the internal structure of neutron stars from gravitational wave spectra
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从引力波谱测定中子星的内部结构
DOI：
10.1103/physrevd.74.124025
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发表时间：
2006
影响因子：
5
通讯作者：
J. Wu
中科院分区：
文献类型：
--
作者：
L. Tsui;P. Leung;J. Wu
在这篇文章中，证明了中子星的内部结构是由其引力波谱推测出来的。迭代应用徐和梁提出的中子星尺度坐标对数摄动法的逆格式[占星学]。，495(2005)]，我们能够从恒星脉动的准简正模式频率确定恒星的质量、半径和质量分布。此外，这种反演方案还可以得到准确的核物质状态方程。文中导出了轴向w模振荡的显式公式，并给出了具有不同状态方程的中子星的数值结果。
In this paper the internal structure of a neutron star is shown to be inferrable from its gravitational-wave spectrum. Iteratively applying the inverse scheme of the scaled coordinate logarithmic perturbation method for neutron stars proposed by Tsui and Leung [Astrophys. J. {\bf 631}, 495 (2005)], we are able to determine the mass, the radius and the mass distribution of a star from its quasi-normal mode frequencies of stellar pulsation. In addition, accurate equation of state of nuclear matter can be obtained from such inversion scheme. Explicit formulas for the case of axial $w$-mode oscillation are derived here and numerical results for neutron stars characterized by different equations of state are shown.