# Near-horizon Structure of Escape Zones of Electrically Charged Particles around Weakly Magnetized Rotating Black Hole. II. Acceleration and Escape in the Oblique Magnetosphere

@article{Kopek2020NearhorizonSO, title={Near-horizon Structure of Escape Zones of Electrically Charged Particles around Weakly Magnetized Rotating Black Hole. II. Acceleration and Escape in the Oblique Magnetosphere}, author={Ondřej Kop{\'a}{\vc}ek and Vladim R Karas}, journal={The Astrophysical Journal}, year={2020}, volume={900} }

Strong gravity and magnetic fields are key ingredients that power processes of accretion and ejection near compact objects. While the particular mechanisms that operate here are still discussed, it seems that the presence of an ordered magnetic field is crucial for the acceleration and collimation of relativistic jets of electrically charged particles on superhorizon length scales. In this context, we further study the effect of a large-scale magnetic field on the dynamics of charged particles…

## 17 Citations

### Near-horizon Structure of Escape Zones of Electrically Charged Particles around Weakly Magnetized Rotating Black Hole

- PhysicsAstronomische Nachrichten
- 2021

An interplay of magnetic fields and gravitation drives accretion and outflows near black holes. However, a specific mechanism is still a matter of debate; it is very likely that different processes…

### Magnetized black holes: the role of rotation, boost, and accretion in twisting the field lines and accelerating particles

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Combined influence of rotation of a black hole and ambient magnetic fields creates conditions for powerful astrophysical processes of accretion and outflow of matter which are observed in many…

### Oblique magnetic fields and the role of frame dragging

- PhysicsAstronomische Nachrichten
- 2019

Magnetic null points can develop near the ergosphere boundary of a rotating black hole by the combined effects of strong gravitational field and the frame-dragging mechanism. The electric component…

### Magnetized Black Holes: Ionized Keplerian Disks and Acceleration of Ultra-High Energy Particles

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Properties of charged particle motion in the field of magnetized black holes (BHs) imply four possible regimes of behavior of ionized Keplerian disks: survival in regular epicyclic motion,…

### Generalized, Energy-conserving Numerical Simulations of Particles in General Relativity. II. Test Particles in Electromagnetic Fields and GRMHD

- PhysicsThe Astrophysical Journal Supplement Series
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Observations of compact objects, in the form of radiation spectra, gravitational waves by LIGO/Virgo, and direct imaging with the Event Horizon Telescope, are currently the main information sources…

### Penrose process for a charged black hole in a uniform magnetic field

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- 2021

Spinning black holes create electromagnetic storms when immersed in ambient magnetic fields, illuminating the otherwise epically dark terrain. In an electromagnetic extension of the Penrose process,…

### Resonance crossing of a charged body in a magnetized Kerr background: an analogue of extreme mass ratio inspiral

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We investigate resonance crossings of a charged body moving around a Kerr black hole immersed in an external homogeneous magnetic ﬁeld. This system can serve as an electromagnetic analogue of a…

### Chaotic exits from a weakly magnetized Schwarzschild black hole

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A charged particle kicked from an initial circular orbit around a weakly magnetized Schwarzschild black hole undergoes transient chaotic motion before either getting captured by the black hole or…

### Determination of chaotic behaviour in time series generated by charged particle motion around magnetized Schwarzschild black holes

- PhysicsThe European Physical Journal C
- 2019

We study behaviour of ionized region of a Keplerian disk orbiting a Schwarzschild black hole immersed in an asymptotically uniform magnetic field. In dependence on the magnetic parameter $${\mathcal…

### Applying explicit symplectic integrator to study chaos of charged particles around magnetized Kerr black hole

- PhysicsThe European Physical Journal C
- 2021

In a recent work of Wu, Wang, Sun and Liu, a second-order explicit symplectic integrator was proposed for the integrable Kerr spacetime geometry. It is still suited for simulating the nonintegrable…

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