Gravitational reaction force on a particle in the Schwarzschild background

Details Gravitational reaction force on a particle in the Schwarzschild background Gravitational reaction force on a particle in the Schwarzschild background

2000-10-10

arxiv.org/abs/gr-qc/0010036v3

Prog.Theor.Phys.105:197-218,2001

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

15 pages, no figure, submitted to Prog. Theor. Phys

Scientific paper

10.1143/PTP.105.197

We formulate a new method to calculate the gravitational reaction force on a particle of mass $\mu$ orbiting a massive black hole of mass $M$. In this formalism, the tail part of the retarded Green function, which is responsible for the reaction force, is calculated at the level of the Teukolsky equation. Our method naturally allows a systematic post-Minkowskian (PM) expansion of the tail part at short distances. As a first step, we consider the case of a Schwarzschild black hole and explicitly calculate the first post-Newtonian (1PN) tail part of the Green function. There are, however, a couple of issues to be resolved before explicitly evaluating the reaction force by applying the present method. We discuss possible resolutions of these issues.

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