Charged particle dynamics in black hole split monopole magnetosphere

Saeed Ullah Khan; Zhi-Min Chen

doi:10.1140/epjc/s10052-023-11897-x

2023 Impact factor 4.2

Particles and Fields

Open Access

This article has an erratum: [https://doi.org/10.1140/epjc/s10052-023-11920-1]

Eur. Phys. J. C (2023) 83: 704
https://doi.org/10.1140/epjc/s10052-023-11897-x

Regular Article - Theoretical Physics

Charged particle dynamics in black hole split monopole magnetosphere

Saeed Ullah Khan¹^,2 and Zhi-Min Chen¹^b

¹ College of Mathematics and Statistics, Shenzhen University, 518060, Shenzhen, China
² College of Physics and Optoelectronic Engineering, Shenzhen University, 518060, Shenzhen, China

^b zmchen@szu.edu.cn

Received: 11 June 2023
Accepted: 2 August 2023
Published online: 7 August 2023

Abstract

This article examines particle dynamics and acceleration in the magnetic Penrose process (MPP) around Kerr black hole (BH) in a split monopole magnetic field. The characteristics of charged particle motion around magnetized BHs reveal four differen feasible regimes of ionized Keplerian disk behaviour: survival in regular epicyclic motion; changing into a chaotic toroidal state; collapse due to escaping along magnetic field lines and collapse due to falling into the BHs. By making use of the effective potential, we have investigated the position of stable circular orbits for both in- and off-equatorial planes. We observed that the positive magnetic field $P > 0$ ${{\mathcal {P}}}>0$ increases the stability of effective potential, whereas $P < 0$ ${{\mathcal {P}}}<0$ diminishes its stability. We show that ultra-efficient energy extraction from spinning supermassive BH controlled by the MPP can pay the bill. We anticipate neutral particle ionization, such as neutron beta-decay, edging closer to the BH horizon, charging protons to more than $10^{20}$ $10^{20}$ eV for a supermassive BH of mass $10^{9} M_{⊙}$ $10^9M_{\odot }$ and a magnetic field of strength $10^{4}$ $$10^4$$ G.

The original online version of this article was revised to delete the equation below equation 29 (marked as equation 30 in html version).

An erratum to this article is available online at https://doi.org/10.1140/epjc/s10052-023-11920-1.

Copyright comment corrected publication 2023

Erratum to this article: https://doi.org/10.1140/epjc/s10052-023-11920-1

© The Author(s) 2023. corrected publication 2023. corrected publication 2023

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