Universal relations between the quasinormal modes of neutron star and tidal deformability

被引：44

作者：

Sotani, Hajime ^{[1
,2
]}

Kumar, Bharat ^{[3
]}

机构：

[1] RIKEN, Astrophys Big Bang Lab, Wako, Saitama 3510198, Japan

[2] RIKEN, Interdisciplinary Theoret & Math Sci Program iTHE, Wako, Saitama 3510198, Japan

[3] NIT, Dept Phys & Astron, Rourkela 769008, India

来源：

PHYSICAL REVIEW D | 2021年 / 104卷 / 12期

基金：

日本学术振兴会;

关键词：

NUCLEAR SYMMETRY ENERGY; EQUATION-OF-STATE; PERIODIC OSCILLATIONS; GRAVITATIONAL-WAVES; MASS; ASTEROSEISMOLOGY; SUPERNOVA; CONSTRAINTS; MATTER;

D O I：

10.1103/PhysRevD.104.123002

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Universal relations that are independent of the equation of state (EOS) for neutron star matter are valuable, if they exist, for extracting the neutron star properties, which generally depend on the EOS. In this study, we newly derive the universal relations predicting the gravitational wave frequencies for the fundamental (f), the 1st pressure (p1), and the 1st spacetime (w1) modes and the damping rate for the fand w1-modes as a function of the dimensionless tidal deformability. In particular, with the universal relations for the f-modes one can predict the frequencies and damping rate with less than 1% accuracy for canonical neutron stars.

引用

页数：7

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