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arXiv · 1901.05370

Spin and Quadrupole Couplings for High Spin Equatorial Intermediate Mass-ratio Coalescences

Bin Chen·Geoffrey Compère·Yan Liu·Jiang Long·Xuao Zhang
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Abstract

Intermediate mass-ratio coalescences are potential signals of ground-based and space-based gravitational observatories. Accurate modeling of their waveforms within general relativity can be achieved within black hole perturbation theory including self-force and finite size effects. In this paper, we present analytic results to the Teukolsky perturbation of equatorial orbits in the near-horizon region of an extremely high spin black hole including spin coupling and finite size effects at leading order in the high spin limit while neglecting the self-force. We detail the critical behavior occuring close to the smallest specific angular momentum, and we discuss features of spin and quadrupole couplings.

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Bin Chen, Geoffrey Compère, Yan Liu, Jiang Long, Xuao Zhang. 2019-01-16. Spin and Quadrupole Couplings for High Spin Equatorial Intermediate Mass-ratio Coalescences. https://doi.org/10.1088/1361-6382%2Fab4fb0

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