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Gravitational self-force on generic bound geodesics in Kerr spacetime.

Authors :
van de Meent, Maarten
Source :
Physical Review D: Particles, Fields, Gravitation & Cosmology. 5/15/2018, Vol. 97 Issue 10, p1-1. 1p.
Publication Year :
2018

Abstract

In this work we present the first calculation of the gravitational self-force on generic bound geodesics in Kerr spacetime to first order in the mass ratio. That is, the local correction to equations of motion for a compact object orbiting a larger rotating black hole due to its own impact on the gravitational field. This includes both dissipative and conservative effects. Our method builds on and extends earlier methods for calculating the gravitational self-force on equatorial orbits. In particular we reconstruct the local metric perturbation in the outgoing radiation gauge from the Weyl scalar ψ 4, which in turn is obtained by solving the Teukolsky equation using semianalytical frequency domain methods. The gravitational self-force is subsequently obtained using (spherical) l-mode regularization. We test our implementation by comparing the large l-behavior against the analytically known regularization parameters. In addition we validate our results by comparing the long-term average changes to the energy, angular momentum, and Carter constant to changes to these constants of motion inferred from the gravitational wave flux to infinity and down the horizon. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
24700010
Volume :
97
Issue :
10
Database :
Academic Search Index
Journal :
Physical Review D: Particles, Fields, Gravitation & Cosmology
Publication Type :
Periodical
Accession number :
130028434
Full Text :
https://doi.org/10.1103/PhysRevD.97.104033