Coupling of radial and non-radial oscillations of neutron stars

被引：0

作者：

Passamonti, A ^{[1
]}

Bruni, M ^{[1
]}

Gualtieri, L ^{[1
]}

Sopuerta, CR ^{[1
]}

机构：

[1] Univ Portsmouth, ICG, Portsmouth PO1 2EG, Hants, England

来源：

Electromagnetic Spectrum of Neutron Stars | 2005年 / 210卷

关键词：

stars : neutron; stars : oscillations;

D O I：

暂无

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

This is a progress report on our study of the coupling of first-order radial and non-radial relativistic perturbations of a static spherical star. Our goal is to investigate the effects of this coupling on the gravitational wave signal of neutron stars. In particular, we are looking for the existence of resonances and parametric amplifications, changes in the damping time of non-radial oscillations, etc. To that end, we have developed a formalism that introduces gauge invariant quantities to describe the coupling. Their equations have the same structure as the equations for first-order non-radial perturbations plus some source terms, which makes them very appealing for time domain studies.

引用

页码：83 / 86

页数：4

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