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arXiv · 1208.3021

Separation of spacetime and matter in polar oscillations of compact stars

Y. J. Zhang·Q. Q. Zhu·J. Wu·P. T. Leung
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Abstract

In polar oscillations of compact stars dynamical changes in spacetime and matter are in general coupled together. Based on the theory of stellar pulsation proposed by Allen et al. [Phys. Rev. D 58, 124012 (1998)], we establish a feasible approximation scheme to separate spacetime from matter in such oscillations. Two independent second-order ordinary differential equations are obtained, which lead to accurate determination of p-mode and w-mode quasi-normal modes of compact stars, respectively.

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Y. J. Zhang, Q. Q. Zhu, J. Wu, P. T. Leung. 2013-12-17. Separation of spacetime and matter in polar oscillations of compact stars. https://doi.org/10.1093/mnras%2Fstt2428

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