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Reconstruction of Black Hole Metric Perturbations from Weyl Curvature II: The Regge-Wheeler gauge

Carlos O. Lousto
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Abstract

Perturbation theory of rotating black holes is described in terms of the Weyl scalars $ψ_4$ and $ψ_0$; each satisfying the Teukolsky's complex master wave equation with spin $s=\mp2$, and respectively representing outgoing and ingoing radiation. We explicitly construct the metric perturbations out of these Weyl scalars in the Regge-Wheeler gauge in the nonrotating limit. We propose a generalization of the Regge-Wheeler gauge for Kerr background in the Newman-Penrose language, and discuss the approach for building up the perturbed spacetime of a rotating black hole. We also provide both-way relationships between waveforms defined in the metric and curvature approaches in the time domain, also known as the (inverse-) Chandrasekhar transformations, generalized to include matter.

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Carlos O. Lousto. 2005-08-08. Reconstruction of Black Hole Metric Perturbations from Weyl Curvature II: The Regge-Wheeler gauge. https://doi.org/10.1088/0264-9381%2F22%2F15%2F002

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