Scalar radiation emitted from a source rotating around a black hole

Details Scalar radiation emitted from a source rotating around a black hole Scalar radiation emitted from a source rotating around a black hole

1999-01-05

arxiv.org/abs/gr-qc/9901006v3

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

19 pages (REVTEX), 5 figures, title slightly changed, extra demonstration and minor improvements included. To appear in Class.

Scientific paper

10.1088/0264-9381/17/1/303

We analyze the scalar radiation emitted from a source rotating around a Schwarzschild black hole using the framework of quantum field theory at the tree level. We show that for relativistic circular orbits the emitted power is about 20% to 30% smaller than what would be obtained in Minkowski spacetime. We also show that most of the emitted energy escapes to infinity. Our formalism can readily be adapted to investigate similar processes.

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