Fast Rotating Relativistic Stars: Spectra and Stability without Approximation

被引：39

作者：

Krueger, Christian J. ^{[1
,2
]}

Kokkotas, Kostas D. ^{[1
]}

机构：

[1] Univ Tubingen, IAAT, Theoret Astrophys, D-72076 Tubingen, Germany

[2] Univ New Hampshire, Dept Phys, 9 Lib Way, Durham, NH 03824 USA

来源：

PHYSICAL REVIEW LETTERS | 2020年 / 125卷 / 11期

关键词：

NEUTRON-STARS; GRAVITATIONAL-WAVES; NONRADIAL PULSATION; STELLAR MODELS; INSTABILITY; EQUATION;

D O I：

10.1103/PhysRevLett.125.111106

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We study oscillations and instabilities of relativistic stars using perturbation theory in general relativity and take into account the contribution of a dynamic spacetime. We present the oscillation spectrum as well as the critical values for the onset of the secular CFS instability of neutron stars, and propose universal relations for gravitational wave asteroseismology, which may help constrain the neutron star radius and/or the nuclear equation of state. The results are relevant for all stages during a neutron star's life but especially to nascent or remnant objects following a binary merger.

引用

页数：6

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