Dynamics of Charged Particles Moving around Kerr Black Hole with Inductive Charge and External Magnetic Field

We mainly focus on the effects of small changes of parameters on the dynamics of charged particles around Kerr black holes surrounded by an external magnetic field, which can be considered as a tidal environment. The radial motions of charged particles on the equatorial plane are studied via an effe...

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Autores principales:	Xin Sun, Xin Wu, Yu Wang, Chen Deng, Baorong Liu, Enwei Liang
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	Kerr black hole magnetic field circular orbits chaos symplectic integrator Elementary particle physics QC793-793.5
Acceso en línea:	https://doaj.org/article/7b49ea0a1f004c05a79987def36450c7
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spelling	oai:doaj.org-article:7b49ea0a1f004c05a79987def36450c72021-11-25T19:09:33ZDynamics of Charged Particles Moving around Kerr Black Hole with Inductive Charge and External Magnetic Field10.3390/universe71104102218-1997https://doaj.org/article/7b49ea0a1f004c05a79987def36450c72021-10-01T00:00:00Zhttps://www.mdpi.com/2218-1997/7/11/410https://doaj.org/toc/2218-1997We mainly focus on the effects of small changes of parameters on the dynamics of charged particles around Kerr black holes surrounded by an external magnetic field, which can be considered as a tidal environment. The radial motions of charged particles on the equatorial plane are studied via an effective potential. It is found that the particle energies at the local maxima values of the effective potentials increase with an increase in the black hole spin and the particle angular momenta, but decrease with an increase of one of the inductive charge parameter and magnetic field parameter. The radii of stable circular orbits on the equatorial plane also increase, whereas those of the innermost stable circular orbits decrease. On the other hand, the effects of small variations of the parameters on the orbital regular and chaotic dynamics of charged particles on the non-equatorial plane are traced by means of a time-transformed explicit symplectic integrator, Poincaré sections and fast Lyapunov indicators. It is shown that the dynamics sensitivity depends on small variations in the inductive charge parameter, magnetic field parameter, energy, and angular momentum. Chaos occurs easily as each of the inductive charge parameter, magnetic field parameter, and energy increases but is weakened as the angular momentum increases. When the dragging effects of the spacetime increase, the chaotic properties are not always weakened under some circumstances.Xin SunXin WuYu WangChen DengBaorong LiuEnwei LiangMDPI AGarticleKerr black holemagnetic fieldcircular orbitschaossymplectic integratorElementary particle physicsQC793-793.5ENUniverse, Vol 7, Iss 410, p 410 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Kerr black hole magnetic field circular orbits chaos symplectic integrator Elementary particle physics QC793-793.5
spellingShingle	Kerr black hole magnetic field circular orbits chaos symplectic integrator Elementary particle physics QC793-793.5 Xin Sun Xin Wu Yu Wang Chen Deng Baorong Liu Enwei Liang Dynamics of Charged Particles Moving around Kerr Black Hole with Inductive Charge and External Magnetic Field
description	We mainly focus on the effects of small changes of parameters on the dynamics of charged particles around Kerr black holes surrounded by an external magnetic field, which can be considered as a tidal environment. The radial motions of charged particles on the equatorial plane are studied via an effective potential. It is found that the particle energies at the local maxima values of the effective potentials increase with an increase in the black hole spin and the particle angular momenta, but decrease with an increase of one of the inductive charge parameter and magnetic field parameter. The radii of stable circular orbits on the equatorial plane also increase, whereas those of the innermost stable circular orbits decrease. On the other hand, the effects of small variations of the parameters on the orbital regular and chaotic dynamics of charged particles on the non-equatorial plane are traced by means of a time-transformed explicit symplectic integrator, Poincaré sections and fast Lyapunov indicators. It is shown that the dynamics sensitivity depends on small variations in the inductive charge parameter, magnetic field parameter, energy, and angular momentum. Chaos occurs easily as each of the inductive charge parameter, magnetic field parameter, and energy increases but is weakened as the angular momentum increases. When the dragging effects of the spacetime increase, the chaotic properties are not always weakened under some circumstances.
format	article
author	Xin Sun Xin Wu Yu Wang Chen Deng Baorong Liu Enwei Liang
author_facet	Xin Sun Xin Wu Yu Wang Chen Deng Baorong Liu Enwei Liang
author_sort	Xin Sun
title	Dynamics of Charged Particles Moving around Kerr Black Hole with Inductive Charge and External Magnetic Field
title_short	Dynamics of Charged Particles Moving around Kerr Black Hole with Inductive Charge and External Magnetic Field
title_full	Dynamics of Charged Particles Moving around Kerr Black Hole with Inductive Charge and External Magnetic Field
title_fullStr	Dynamics of Charged Particles Moving around Kerr Black Hole with Inductive Charge and External Magnetic Field
title_full_unstemmed	Dynamics of Charged Particles Moving around Kerr Black Hole with Inductive Charge and External Magnetic Field
title_sort	dynamics of charged particles moving around kerr black hole with inductive charge and external magnetic field
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/7b49ea0a1f004c05a79987def36450c7
work_keys_str_mv	AT xinsun dynamicsofchargedparticlesmovingaroundkerrblackholewithinductivechargeandexternalmagneticfield AT xinwu dynamicsofchargedparticlesmovingaroundkerrblackholewithinductivechargeandexternalmagneticfield AT yuwang dynamicsofchargedparticlesmovingaroundkerrblackholewithinductivechargeandexternalmagneticfield AT chendeng dynamicsofchargedparticlesmovingaroundkerrblackholewithinductivechargeandexternalmagneticfield AT baorongliu dynamicsofchargedparticlesmovingaroundkerrblackholewithinductivechargeandexternalmagneticfield AT enweiliang dynamicsofchargedparticlesmovingaroundkerrblackholewithinductivechargeandexternalmagneticfield
_version_	1718410225813291008

Dynamics of Charged Particles Moving around Kerr Black Hole with Inductive Charge and External Magnetic Field

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