Research on high-frequency quasi-periodic oscillations in black bounce-type spacetime
arXiv:2403.19942 · doi:10.1016/j.nuclphysb.2024.116775
Abstract
This paper investigates the high frequency quasi-periodic oscillations (HFQPOs) phenomenon around the black bounce-type (BBT) spacetime using the resonance models. We calculated the location of the innermost stable circular orbit (ISCO) for different types of celestial bodies, and derived the expression for the epicyclic frequencies of test particles. The results show that the BBT spacetime possesses unique observational characteristics, where the ordering of epicyclic frequencies varies with the regularization parameter , enabling the excitation of low-order resonances and producing stronger observational signals. Using parametric and forced resonance models, we compared theoretical results with the observed 3:2 twin-peak HFQPOs in microquasars (GRO 1655-40, XTE 1550-564, GRS ), analyzed the formation mechanisms of HFQPOs, constrained the parameters of the BBT model, and explored the possible types of celestial objects corresponding to microquasars. The study indicates that, certain parametric resonance conditions (e.g., ) lead to traversable wormhole models in BBT that closely align with observations. And forced resonance corresponding to BH or wormhole models can be verified through observations. These results deviate from the data fits of the original black-bounce model. It is found that the oscillatory behavior of three types of microquasars can also be explained by particle oscillations generated in BBT theory, providing evidence for exploring the existence of wormholes, under the assumptions of parametric resonance and forced resonance.
21 pages, 8 figures
References in corpus (28)
- First M87 Event Horizon Telescope Results. I. The Shadow of the Supermassive Black Hole
- X-ray Properties of Black-Hole Binaries
- First M87 Event Horizon Telescope Results. IV. Imaging the Central Supermassive Black Hole
- Notes on non-singular models of black holes
- Can we distinguish between black holes and wormholes by their Einstein-ring systems?
- Thin accretion disks in stationary axisymmetric wormhole spacetimes
- Testing Gravity with Quasi Periodic Oscillations from accreting Black Holes: the Case of Einstein-Dilaton-Gauss-Bonnet Theory
- Constraining alternatives to the Kerr black hole
- Thin accretion disk in the Simpson-Visser black-bounce and wormhole spacetimes
- On black bounces, wormholes and partly phantom scalar fields
- Source of black bounces in general relativity
- Quasiperiodic oscillations around hairy black holes in Horndeski gravity
- Singularity-free gravitational collapse and asymptotic safety
- Coincident f(Q) gravity: black holes, regular black holes and black bounces
- Constraint on parameters of a rotating black hole in Einstein-bumblebee theory by quasi-periodic oscillations
- Confrontation of Observation and Theory: High Frequency QPOs in X-ray Binaries, Tidal Disruption Events, and Active Galactic Nuclei
- Epicyclic Oscillations around Simpson-Visser Regular Black Holes and Wormholes
- Throat effects on shadows of Kerr-like wormholes
- How to form a wormhole
- Regular black holes with sub-Planckian curvature
- Singularity free gravitational collapse in an effective dynamical quantum spacetime
- Investigating the Physical Properties of Traversable Wormholes in the Modified Gravity
- Avoidance of singularity during the gravitational collapse with string T-duality effects
- Validity of energy conditions of matter in traversable wormholes under the modified gravity theory
- Acoustic regular black hole in fluid and its similarity and diversity to a conformally related black hole
- Regular black holes with improved energy conditions and their analogues in fluids
- Determining parameters of a spherical black hole with a thin accretion disk by observing its shadow
- The generalized holographic -function for regular AdS black holes