Charged particle dynamics in parabolic magnetosphere around Schwarzschild black hole

Abstract

The study of charged particle dynamics in the combined gravitational and magnetic field can provide important theoretical insight into astrophysical processes around black holes. In this paper, we explore the charged particle dynamics in parabolic magnetic field configuration around Schwarzschild black hole, since the paraboloidal shapes of magnetic field lines around black holes are well motivated by the numerical simulations and supported by observations of relativistic jets. Analysing the stability of bounded orbits and using the effective potential approach, we show the possibility of existence of stable circular off-equatorial orbits around the symmetry axis. We also show the influence of radiation reaction force on the dynamics of charged particles, in particular on the chaoticity of the motion and Poincaré sections, oscillatory frequencies, and emitted electromagnetic spectrum. Applied to Keplerian accretion disks, we show that in parabolic magnetic field configuration, the thin accretion configurations can be either destroyed or transformed into a thick toroidal structure given the radiation reaction and electromagnetic-disk interactions included. Calculating the Fourier spectra for radiating charged particle trajectories, we find that the radiation reaction force does not affect the main frequency peaks, however, it lowers the higher harmonics making the spectrum more flat and diluted in high frequency range.

23 pages, 16 figures

References in corpus (22)

• First M87 Event Horizon Telescope Results. VIII. Magnetic Field Structure near The Event Horizon
• Black hole flares: ejection of accreted magnetic flux through 3D plasmoid-mediated reconnection
• Disk-Jet Coupling in Black Hole Accretion Systems I: General Relativistic Magnetohydrodynamical Models
• Possible signature of magnetic fields related to quasi-periodic oscillation observed in microquasars
• Off-equatorial orbits in strong gravitational fields near compact objects -- II: halo motion around magnetic compact stars and magnetized black holes
• Supermassive black holes as possible sources of ultra high energy cosmic rays
• Disk-Jet Coupling in Black Hole Accretion Systems II: Force-Free Electrodynamical Models
• Magnetic Hair and Reconnection in Black Hole Magnetospheres
• Off-equatorial orbits in strong gravitational fields near compact objects
• Determination of chaotic behaviour in time series generated by charged particle motion around magnetized Schwarzschild black holes
• Radiative reconnection-powered TeV flares from the black hole magnetosphere in M87
• Epicyclic oscillations in spinning particle motion around Kerr black hole applied in models fitting the quasi-periodic oscillations observed in quasars and microquasars
• Fifty years of energy extraction from rotating black hole: revisiting magnetic Penrose process
• Collisionless accretion onto black holes: dynamics and flares
• Motion of charged and spinning particle influenced by dark matter field surrounding a charged dyonic black hole
• Near-horizon structure of escape zones of electrically charged particles around weakly magnetized rotating black hole
• Images of magnetospheric reconnection-powered radiation around supermassive black holes
• Regular and chaotic orbits near a massive magnetic dipole
• Resonance crossing of a charged body in a magnetized Kerr background: an analogue of extreme mass ratio inspiral
• Averaged Recurrence Quantification Analysis -- Method omitting the recurrence threshold choice
• Two-dimensional Particle-in-Cell simulations of axisymmetric black hole magnetospheres
• Determination of supermassive black hole spins in local active galactic nuclei

Cited by in corpus (10)

• Structure-preserving numerical simulations of test particle dynamics around slowly rotating neutron stars within Hartle-Thorne approach
• Black hole in a combined magnetic field: ionized accretion disks in the jetlike and looplike configurations
• Gravitational wave radiation from periodic orbits and quasi-periodic oscillations in Einstein non-linear Maxwell-Yukawa black hole
• Radiative Back-Reaction on Charged Particle Motion in the Dipole Magnetosphere of Neutron Stars
• Semi-analytic studies of accretion disk and magnetic field geometry in M87*
• Modeling HF-QPOs in Microquasars and AGNs: Charged Particles around Black Holes with CDM Halos
• QPO-Based Bayesian Constraints on Charged Particle Dynamics Around Magnetized Schwarzschild Black Holes
• Horizon-Brightened Acceleration Radiation and Optical Signatures of Generic Regular Black Holes from Nonlinear Electrodynamics
• Charged particle dynamics in magnetosphere generated by current loop around Schwarzschild black hole
• Spinning charged test particle dynamics around a Schwarzschild black hole embedded in a homogeneous magnetic field