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Merger estimates for rotating Kerr black holes in modified gravity

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arxiv 1803.09530 v2 pith:LLBLQ4SX submitted 2018-03-26 gr-qc hep-th

Shao-Wen Wei , Yu-Xiao Liu This is my paper · ORCID
classification gr-qchep-th
keywords blackgravityholeorbitscircularfieldholesmergers
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In this paper, we explore the signatures of non-rotating and rotating black hole mergers in the matter-free modified gravity. First, we solve the unstable circular null orbits and the innermost stable circular timelike orbits via the geodesic motion. The characteristic quantities of these orbits are systematically analyzed by varying the black hole spin and the scalar field parameter of the gravity. Then based on it, we study the ringdown modes from the light ring/quasinormal modes correspondence. The final spins of the merged black holes are also estimated with the Buonanno-Kidder-Lehner recipe. Several black hole merging cases are investigated in detail. All these results show that the black hole mergers are closely dependent of the scalar field parameter of the gravity.

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Cited by 3 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Spherical photon orbits around Kerr-MOG black hole

    gr-qc 2024-12 conditional novelty 5.0 of 10

    Spherical photon orbits around Kerr-MOG black holes are classified, with a critical inclination angle switching the number of orbits from four to two.

  2. Influence of the Vacuum Polarization Effect on the Motion of Charged Particles in the Magnetic Field around a Schwarzschild Black Hole

    gr-qc 2019-08 reject novelty 5.0 of 10

    If vacuum polarization non-minimally couples magnetic fields to gravity, charged particle trajectories around Schwarzschild black holes can shift from unbound to bound, especially near the horizon.

  3. Shadows and accretion disk images of charged rotating black hole in modified gravity theory

    gr-qc 2024-11 conditional novelty 4.0 of 10

    Ray-traced images of the Kerr-Newman-MOG black hole show that the MOG parameter α enlarges and rounds the shadow, and its effect beats that of the electric charge Q.

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