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In presence of magnetic fields, the orbits of charged particles can be displaced from the equatorial plane. We study circular orbits of electrically charged massive objects around a magnetic black hole in the probe approximation. We show…

General Relativity and Quantum Cosmology · Physics 2020-08-26 Jorge G. Russo

Off-equatorial circular orbits with constant latitudes (halo orbits) of electrically charged particles exist near compact objects. In the previous paper, we discussed this kind of motion and demonstrated the existence of minima of the…

High Energy Astrophysical Phenomena · Physics 2010-05-19 Jiri Kovar , Ondrej Kopacek , Vladimir Karas , Zdenek Stuchlik

Near a black hole or an ultracompact star, motion of particles is governed by strong gravitational field. Electrically charged particles feel also electromagnetic force arising due to currents inside the star or plasma circling around. We…

Astrophysics · Physics 2009-06-23 Jiri Kovar , Zdenek Stuchlik , Vladimir Karas

In this paper, we investigate periodic orbits exhibiting zoom-whirl behavior around a magnetically charged black hole (MCBH) within the framework of the regular black hole. We examine how the magnetic charge influences orbital dynamics by…

General Relativity and Quantum Cosmology · Physics 2025-10-09 Mirzabek Alloqulov , Sanjar Shaymatov , Bobomurat Ahmedov , Tao Zhu

We study the effects of an external magnetic field, which is assumed to be uniform at infinity, on the marginally stable circular motion of charged particles in the equatorial plane of a rotating black hole. We show that the magnetic field…

General Relativity and Quantum Cosmology · Physics 2011-05-23 A. N. Aliev , N. Ozdemir

In this work we analyze the effects of an external magnetic field on charged particles on equatorial circular orbits in a Kerr spacetime, both in the black hole and the naked singularity cases. Understanding these phenomena is of great…

High Energy Astrophysical Phenomena · Physics 2014-08-19 Ignacio F. Ranea Sandoval , Héctor Vucetich

We study motion of charged particles in the field of a rotating black hole immersed into an external asymptotically uniform magnetic field, focusing on the epicyclic quasi-circular orbits near the equatorial plane. Separating the circular…

General Relativity and Quantum Cosmology · Physics 2016-05-04 Arman Tursunov , Zdeněk Stuchlík , Martin Kološ

In this article, we investigate the motion of a spinning particle at a constant inclination, different from the equatorial plane, around a Kerr black hole. We mainly explore the possibilities of stable circular orbits for different spin…

General Relativity and Quantum Cosmology · Physics 2018-10-24 Sajal Mukherjee , Rajesh Kumble Nayak

In this work we derived a rotating and non-linear magnetic-charged black hole surrounded by quintessence using the Newman-Janis algorithm. Considering the state parameter $\omega_q=-3/2$, we studied the event horizons, the ergosphere, and…

General Relativity and Quantum Cosmology · Physics 2020-02-21 Carlos A. Benavides-Gallego , A. A. Abdujabbarov , Cosimo Bambi

We study the effects of large scale magnetic fields on the dynamics of charged particles near a rotating black hole. We consider a scenario in which the initially neutral particles on geodesic orbits in the equatorial plane become ionized,…

High Energy Astrophysical Phenomena · Physics 2021-03-23 Vladimir Karas , Ondrej Kopacek

We study the orbital structure and precession dynamics of neutral test particles in the magnetized Kerr black hole (MKBH) spacetime-an exact electrovacuum solution of the Einstein-Maxwell equations that self-consistently incorporates the…

General Relativity and Quantum Cosmology · Physics 2026-05-12 Karthik Iyer , Chandrachur Chakraborty

We study the circular orbits of charged particles around a weakly charged Kerr black hole immersed in a weak, axisymmetric magnetic field. Firstly, we review the circular orbits of neutral particles. We then review the circular orbits of…

General Relativity and Quantum Cosmology · Physics 2022-10-04 A. M. Al Zahrani

This paper investigates the motion and acceleration of a particle that is electrically and magnetically charged, which rotates around a cylindrical black hole in the presence of an external asymptotically uniform magnetic field parallel to…

General Relativity and Quantum Cosmology · Physics 2020-10-13 Rayimbaev Javlon , Demyanova Alexandra , Ugur Camci , Ahmadjon Abdujabbarov , Bobomurat Ahmedov

In this paper we first investigate the equatorial circular orbit structure of Kerr black holes with scalar hair (KBHsSH) and highlight their most prominent features which are quite distinct from the exterior region of ordinary bald Kerr…

High Energy Astrophysical Phenomena · Physics 2021-03-30 Lucas G. Collodel , Daniela D. Doneva , Stoytcho S. Yazadjiev

We mainly focus on the effects of small changes of parameters on the dynamics of charged particles around the Kerr black hole surrounded by an external magnetic field, which can be considered as a tidal environment. The radial motions of…

General Relativity and Quantum Cosmology · Physics 2021-11-10 Xin Sun , Xin Wu , Yu Wang , Chen Deng , Baorong Liu , Enwei Liang

We study charged-fluid toroidal structures surrounding a non-rotating charged black hole immersed in a large-scale, asymptotically uniform magnetic field. In continuation of our former study on electrically charged matter in approximation…

General Relativity and Quantum Cosmology · Physics 2015-06-22 Jiří Kovář , Petr Slaný , Claudio Cremaschini , Zdeněk Stuchlík , Vladimír Karas , Audrey Trova

We discuss a cornucopia of potential astrophysical signatures and constraints on magnetically charged black holes of various masses. As recently highlighted, being potentially viable astrophysical candidates with immense electromagnetic…

High Energy Physics - Phenomenology · Physics 2021-01-26 Diptimoy Ghosh , Arun Thalapillil , Farman Ullah

Magnetic fields in an accretion disk around the central black hole can modify the position of the innermost stable circular orbit (ISCO) radius and produces the difference for the classical Novikov-Thorne radius. We estimated the ISCO…

High Energy Astrophysical Phenomena · Physics 2015-04-27 M. Yu. Piotrovich , Yu. N. Gnedin , N. A. Silant'ev , T. M. Natsvlishvili , S. D. Buliga

We study circular motion of charged test particles on the equatorial slice of a Taub--NUT black hole with Manko--Ruiz parameter $C$, immersed in a weak external magnetic field introduced via Wald's prescription. Because the Taub--NUT metric…

General Relativity and Quantum Cosmology · Physics 2026-05-27 B. J. Bansawang , Tasrief Surungan

Black holes attract gaseous material from the surrounding environment. Cosmic plasma is largely ionized and magnetized because of electric currents flowing in the highly conductive environment near black holes; the process of accretion then…

High Energy Astrophysical Phenomena · Physics 2021-01-01 Vladimir Karas , Kostas Sapountzis , Agnieszka Janiuk
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