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Parameter Constraints on Traversable Wormholes within Beyond Horndeski Theories through Quasi-Periodic Oscillations

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arxiv 2403.08356 v1 pith:WBYL5ONW submitted 2024-03-13 gr-qc

Farukh Abdulkhamidov , Petya Nedkova , Javlon Rayibaev , Jutta Kunz , Bobomurat Ahmedov This is my paper · ORCID
classification gr-qc
keywords oscillationscircularhorndeskiwormholewormholesbeyondblackgravity
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{\it Hunting} compact astrophysical objects such as black holes and wormholes, as well as testing gravity theories, are important issues in relativistic astrophysics. In this sense, theoretical and observational studies of quasiperiodic oscillations (QPOs) observed in (micro)quasars become helpful in exploring their central object, which can be a black hole or a wormhole. In the present work, we study the throat properties of traversable wormholes beyond Horndeski theory. Also, we investigate the circular motion of test particles orbiting the wormhole. We analyze the test particle's effective potential and angular momentum for circular orbits. Frequencies of radial and vertical oscillations of the particles around stable circular orbits have also been studied and applied in explaining the quasiperiodic oscillations mechanism in the relativistic precession (RP) model. Finally, we obtain constraint values for the parameters of Horndeski gravity and the mass of the wormhole candidates using QPOs observed in the microquasars GRO J1655-40, GRS 1915+105 \& XTE J1550-564 and at the center of Milky Way galaxy through Monte-Carlo-Markovian-Chain (MCMC) analyses.

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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. Mapping Quasi-Periodic Oscillations to Lyapunov Exponent across Black Hole Thermodynamic Phase Transitions

    gr-qc 2025-10 reject novelty 4.0 of 10

    For a nonminimally coupled magnetic AdS black hole, the Lyapunov exponent and QPO frequencies both reproduce the swallowtail branch structure of the Van der Waals-like thermodynamic phase transition.

  2. Influence of external magnetic fields on charged particle motion around a Schwarzschild-like black hole

    gr-qc 2025-06 reject novelty 4.0 of 10

    The paper derives ISCO radii, collision energies, and QPO frequencies for charged particles around a Schwarzschild-like black hole in an external magnetic field, but the dimensionless equations contain an internal inc...

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