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arXiv · 2404.16437

Axial Gravitational Perturbations of Slowly-Rotating Compact Objects in General Relativity and Beyond

Xing-Hui Feng·Jun Peng
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Abstract

We study the axial gravitational perturbations of slowly-rotating compact objects which are assumed to be supported by anisotropic fluids. We find that the gravitational perturbations decouple from the matter perturbations for axial sectors. We obtain a master wave equation whose potential is fully determined by the metric functions. This equation makes the calculations of gravitational QNMs for rotating compact objects extremely easy in specific background configurations.

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Xing-Hui Feng, Jun Peng. 2024-04-25. Axial Gravitational Perturbations of Slowly-Rotating Compact Objects in General Relativity and Beyond. https://doi.org/10.1103/physrevd.110.064078

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