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Constraints on Hairy Kerr black hole with quasi-periodic oscillations

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arxiv 2311.12423 v1 pith:W3HQOFB5 submitted 2023-11-21 astro-ph.HE gr-qc

Cheng Liu , Hoongwah Siew , Tao Zhu , Qiang Wu , Yuanyuan Zhao , Haiguang Xu This is my paper · ORCID
classification astro-ph.HEgr-qc
keywords hairyblackholechargehkbhkerrspace-timebinaries
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abstract

The Hairy Kerr black hole is a novel black hole solution that depicts a rotating space-time encompassed by an axisymmetric fluid. It has significant observational importance and is an excellent candidate for an astrophysical black hole. Our study investigates the impact of the hairy charge on the quasi-periodic oscillations (QPOs) of X-ray binaries in the Hairy Kerr black hole (HKBH) space-time. The relativistic precession model is employed to compute the three principal frequencies of the accretion disk encircling the HKBH. We compare our outcomes with the observations of five X-ray binaries and employ a Markov chain Monte Carlo (MCMC) simulation for restricting the hairy charge parameters. There is no substantial evidence for the existence of hairy charge in the HKBH space-time. Therefore, we are placing observational constraints on the deformation parameters with $0<\alpha<0.07697$ and hairy charge values ranging from $0.27182<l_0/M<2.0$.

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Cited by 2 Pith papers

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

  1. Spin precession frequencies of a test gyroscope around a naked singularity and quasi-periodic oscillations

    gr-qc 2025-05 conditional novelty 6.0 of 10

    The paper derives spin precession frequencies for a rotating naked singularity spacetime, shows they match Kerr in the weak field, and uses quasi-periodic oscillations to constrain and disfavor the model.

  2. Constraints on extra charges in dyonic Kerr-Newman-Kasuya-Taub-NUT black hole from the observations of quasi-periodic oscillations

    astro-ph.HE 2025-07 conditional novelty 4.0 of 10

    Using QPO data from five X-ray binaries, the authors place upper limits on electric, magnetic, and NUT charges of a dyonic Kerr black hole, with a tentative nonzero NUT parameter in GRS 1915+105.

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