Constraints on the magnetized Ernst black hole spacetime through quasiperiodic oscillations

Abstract

We study the dynamics of test particles around a magnetized Ernst black hole considering its magnetic field in the environment surrounding the black hole. We show how its magnetic field can influence the dynamics of particles and epicyclic motion around the black hole. Based on the analysis, we find that the radius of the innermost stable circular orbit (ISCO) for both neutral and charged test particles and epicyclic frequencies are strongly affected by the influence of the magnetic field. We also show that the ISCO radius of charged particles decreases rapidly. It turns out that the gravitational and Lorentz forces of the magnetic field are combined, thus strongly shrinking the values of the ISCO of charged test particles. Finally, we obtain the generic form for the epicyclic frequencies and select three microquasars with known astrophysical quasiperiodic oscillation (QPO) data to constrain the magnetic field.We show that the magnetic field is of the order of magnitude $B\sim 10^{-7}$ Gauss, taking into account the motion of neutral particles in circular orbit about the black hole.

11 pages, 10 captioned figures. Updated to match with the published version

References in corpus (18)

• Motion of charged particles near weakly magnetized Schwarzschild black hole
• Possible signature of magnetic fields related to quasi-periodic oscillation observed in microquasars
• Dynamics of test particles around a Bardeen black hole surrounded by perfect fluid dark matter
• Supermassive black holes as possible sources of ultra high energy cosmic rays
• Quasiperiodic Oscillations, Quasinormal Modes and Shadows of Bardeen-Kiselev Black Holes
• Dynamics of particles and epicyclic motions around Schwarzschild-de-Sitter black hole in perfect fluid dark matter
• Quasinormal modes of black holes immersed in a strong magnetic field
• Shadow, quasinormal modes and quasiperiodic oscillations of rotating Kaluza-Klein black holes
• Dynamics of Particles Around a Schwarzschild-like Black Hole in the Presence of Quintessence and Magnetic Field
• Charged particle and epicyclic motions around $4D$ Einstein-Gauss-Bonnet black hole immersed in an external magnetic field
• Determination of chaotic behaviour in time series generated by charged particle motion around magnetized Schwarzschild black holes
• Superradiant instability for black holes immersed in a magnetic field
• Destroying a near-extremal Kerr black hole with a charged particle: Can a test magnetic field serve as a cosmic censor?
• Can the dynamics of test particles around charged stringy black holes mimic the spin of Kerr black holes?
• Charged particle in higher dimensional weakly charged rotating black hole spacetime
• Dynamics of Particles Around a Regular Black Hole with Nonlinear Electrodynamics
• A Comprehensive Power Spectral Density Analysis of Astronomical Time Series. II. The Swift/BAT Long Gamma-Ray Bursts
• LNRF-velocity hump-induced oscillations of a Keplerian disc orbiting near-extreme Kerr black hole: A possible explanation of high-frequency QPOs in GRS 1915+105

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• Tunneling and thermodynamics evolution of the magnetized Ernst-like black hole
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• Universality in quasinormal modes of a magnetized black hole