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Published May 15, 2000 | public
Journal Article Open

Self-Force on a Particle in Orbit around a Black Hole

Burko, Lior M.

Abstract

We study the self-force acting on a scalar charge in uniform circular motion around a Schwarzschild black hole. The analysis is based on a direct calculation of the self-force via mode decomposition, and on a regularization procedure based on Ori's mode-sum regularization prescription. We find the four self-forces at arbitrary radii and angular velocities (both geodesic and nongeodesic), in particular near the black hole, where general-relativistic effects are strongest, and for fast motion. We find the radial component of the self-force to be repulsive or attractive, depending on the orbit.

Additional Information

©2000 The American Physical Society Received 11 November 1999 I thank Scott Hughes and Kip Thorne for valuable discussions. I am indebted to Amos Ori for many stimulating discussions and for letting me use his results before their publication. This research was supported by NSF Grants No. AST-9731698 and No. PHY-9900776, and by NASA Grant No. NAG5-6840.

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August 21, 2023
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