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Periodic orbits around Kerr Sen black holes

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arxiv 1804.05883 v2 pith:YCKNTX44 submitted 2018-04-16 gr-qc

Changqing Liu , Chikun Ding , Jiliang Jing This is my paper · ORCID
classification gr-qc
keywords orbitskerrperiodicblackaroundholenumberzoom-whirl
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abstract

We investigate periodic orbits and zoom-whirl behaviors around a Kerr Sen black hole with a rational number $q$ in terms of three integers $(z,w,v)$, from which one can immediately read off the number of leaves(or zooms), the ordering of the leaves, and the number of whirls. The characteristic of zoom-whirl periodic orbits is the precession of multi-leaf orbits in the strong field regime. This feature is analogous to the counterpart in the Kerr space-time. Finally, we analyze the impact of the charge parameter $b$ on the zoom-whirl periodic orbits. Compared to the periodic orbits around the Kerr black hole, it is found that typically lower energies are required for the same orbits in the Kerr Sen black hole.

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Cited by 4 Pith papers

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  3. Gravitational radiations from periodic orbits around a black hole in the effective field theory extension of general relativity

    gr-qc 2025-12 unverdicted novelty 5.0 of 10

    Periodic orbits around EFTGR black holes produce gravitational waveforms whose substructures increase in complexity with higher zoom numbers.

  4. Periodic orbits and their gravitational wave radiations in black hole with dark matter halo

    gr-qc 2025-02 conditional novelty 4.0 of 10

    A Hernquist-like dark matter halo changes the energies, angular momenta, and gravitational waveforms of periodic orbits around a supermassive black hole, compared with vacuum Schwarzschild.

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