Scalar self-force on eccentric geodesics in Schwarzschild spacetime: A time-domain computation
- Department of Physics, University of Guelph, Guelph, Ontario, N1G 2W1 (Canada)
We calculate the self-force acting on a particle with scalar charge moving on a generic geodesic around a Schwarzschild black hole. This calculation requires an accurate computation of the retarded scalar field produced by the moving charge; this is done numerically with the help of a fourth-order convergent finite-difference scheme formulated in the time domain. The calculation also requires a regularization procedure, because the retarded field is singular on the particle's world line; this is handled mode-by-mode via the mode-sum regularization scheme first introduced by Barack and Ori. This paper presents the numerical method, various numerical tests, and a sample of results for mildly eccentric orbits as well as ''zoom-whirl'' orbits.
- OSTI ID:
- 20935318
- Journal Information:
- Physical Review. D, Particles Fields, Vol. 75, Issue 12; Other Information: DOI: 10.1103/PhysRevD.75.124011; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
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