Scalar field self-force effects on orbits about a Schwarzschild black hole

Details Scalar field self-force effects on orbits about a Schwarzschild black hole Scalar field self-force effects on orbits about a Schwarzschild black hole

2004-10-04

arxiv.org/abs/gr-qc/0410011v1

Phys.Rev.D70:124018,2004

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

15 pages, 8 figures

Scientific paper

10.1103/PhysRevD.70.124018

For a particle of mass mu and scalar charge q, we compute the effects of the scalar field self-force upon circular orbits, upon slightly eccentric orbits and upon the innermost stable circular orbit of a Schwarzschild black hole of mass M. For circular orbits the self force is outward and causes the angular frequency at a given radius to decrease. For slightly eccentric orbits the self force decreases the rate of the precession of the orbit. The effect of the self force moves the radius of the innermost stable circular orbit inward by 0.122701 q^2/mu, and it increases the angular frequency of the ISCO by the fraction 0.0291657 q^2/mu M.

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