2023
Motion of charged and magnetized particles around regular black holes immersed in an external magnetic field in modified gravity
RAYIMBAEV, Javlon; Ahmadjon ABDUJABBAROV; Dilshodbek BARDIEV; Bobomurat AHMEDOV; Mardon ABDULLAEV et. al.Basic information
Original name
Motion of charged and magnetized particles around regular black holes immersed in an external magnetic field in modified gravity
Authors
RAYIMBAEV, Javlon (860 Uzbekistan); Ahmadjon ABDUJABBAROV (860 Uzbekistan); Dilshodbek BARDIEV (860 Uzbekistan, belonging to the institution); Bobomurat AHMEDOV (860 Uzbekistan) and Mardon ABDULLAEV
Edition
European Physical Journal Plus, DE - Spolková republika Německo, 2023, 2190-5444
Other information
Language
English
Type of outcome
Article in a journal
Field of Study
10308 Astronomy
Country of publisher
Germany
Confidentiality degree
is not subject to a state or trade secret
References:
Impact factor
Impact factor: 2.800
RIV identification code
RIV/47813059:19630/23:A0000267
Organization unit
Institute of physics in Opava
UT WoS
000976872300001
EID Scopus
2-s2.0-85156125212
Keywords in English
horizon;dynamics;orbits;shadow;chaos;mass;black holes
Tags
Tags
International impact, Reviewed
Links
GA23-07043S, research and development project.
Changed: 16/2/2024 10:53, Mgr. Pavlína Jalůvková
Abstract
In the original language
We study properties of spacetime around regular black holes (BHs) in modified gravity, so-called regular MOG BH. The motion of the test electrically neutral and charged, and particles with magnetic dipole moment, near the regular MOG BH, considering the BH is immersed in an external, asymptotically uniform magnetic field, have also been investigated. In a study of charged particles' dynamics, we have shown that the radius of the particle's innermost stable circular orbits (ISCOs) increases with respect to increasing the parameter of MOG, while as cyclotron frequency grows the ISCO radius decreases. Effects of MOG field on synchrotron radiation by charged particles have also been studied and obtained that the existence of the MOG parameter essentially decreases the total luminosity of the radiation. Moreover, through studies of the dynamics of magnetic dipoles, we have shown that the increase of the MOG and the magnetic coupling parameters lead to an increase of the inner radius and the width of the accretion disk consisting of test magnetized particles. Finally, it is obtained that the range for values of the magnetic coupling parameter for neutron stars orbiting supermassive black holes causes their orbits to be stable.