Analytic black hole perturbation approach to gravitational radiation

Details Analytic black hole perturbation approach to gravitational radiation Analytic black hole perturbation approach to gravitational radiation

2003-06-27

arxiv.org/abs/gr-qc/0306120v1

Living Rev.Rel.6:6,2003

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

49 pages, accepted for publication in Living Reviews in Relativity

Scientific paper

We review analytic methods to perform the post-Newtonian expansion of gravitational waves induced by a particle orbiting a massive compact body, based on the black hole perturbation theory. There exist two different methods of the post-Newtonian expansion. Both are based the Teukolsky equation. In one method, the Teukolsky equation is transformed into a Regge-Wheeler type equation that reduces to the standard Klein-Gordon equation in the flat space limit, while in the other method, which were introduced by Mano, Suzuki and Takasugi relatively recently, the Teukolsky equation is directly used in its original form. The former has an advantage that it is intuitively easy to understand how various curved space effects come into play. However, it becomes increasingly complicated when one goes on to higher and higher post-Newtonian orders. In contrast, the latter has an advantage that a systematic calculation to higher post-Newtonian orders is relatively easily implementable, but otherwise so mathematical that it is hard to understand the interplay of higher order terms. In this paper, we review both methods so that their pros and cons may be clearly seen. We also review some results of calculations of gravitational radiation emitted by a particle orbiting a black hole.

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