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Updated: Apr 16, 2026

The Generation of Higher-order Laguerre-Gauss Optical Beams for High-precision Interferometry
Published on: August 12, 2013
Orbital resonances around black holes
Jeandrew Brink1,2, Marisa Geyer3,4, Tanja Hinderer5
1National Institute for Theoretical Physics (NITheP), Bag X1 Matieland, Stellenbosch 7602, South Africa.
Abstract:
We compute the length and time scales associated with resonant orbits around Kerr black holes for all orbital and spin parameters. Resonance-induced effects are potentially observable when the Event Horizon Telescope resolves the inner structure of Sgr A*, when space-based gravitational wave detectors record phase shifts in the waveform during the resonant passage of a compact object spiraling into the black hole, or in the frequencies of quasiperiodic oscillations for accreting black holes. The onset of geodesic chaos for non-Kerr spacetimes should occur at the resonance locations quantified here.
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