J 2022

Magnetized and Magnetically Charged Particles Motion around Regular Bardeen Black Hole in 4D Einstein Gauss-Bonnet Gravity

RAYIMBAEV, Javlon, Dilshodbek BARDIEV, Farrux ABDULXAMIDOV, Ahmadjon ABDUJABBAROV, Bobomurat AHMEDOV et. al.

Basic information

Original name

Magnetized and Magnetically Charged Particles Motion around Regular Bardeen Black Hole in 4D Einstein Gauss-Bonnet Gravity

Authors

RAYIMBAEV, Javlon, Dilshodbek BARDIEV (860 Uzbekistan, belonging to the institution), Farrux ABDULXAMIDOV, Ahmadjon ABDUJABBAROV and Bobomurat AHMEDOV

Edition

Universe, Switzerland, 2022, 2218-1997

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10308 Astronomy

Country of publisher

Switzerland

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

RIV identification code

RIV/47813059:19630/22:A0000228

Organization unit

Institute of physics in Opava

UT WoS

000875940200001

Keywords in English

black holes; magnetic fields; magnetized particles; relativistic stars; orbits

Tags

Tags

International impact, Reviewed
Změněno: 8/3/2023 12:27, Mgr. Pavlína Jalůvková

Abstract

V originále

In this paper, we study the horizon properties and scalar invariants of the spacetime around a regular black hole (BH) in 4D Einstein Gauss-Bonnet (4D EGB) gravity. It is observed that the presence of both Gauss-Bonnet (GB) coupling and magnetic charge parameters causes the shrinking of the outer horizon. We find that the range of the GB parameter alpha/M2 is an element of(-0.15869,1), and the extreme value of magnetic charge reaches up to gextr=0.886M, which allows for the existence of a BH horizon, while it is gextr=0.7698M for pure Bardeen BH. We also investigate the dynamics of magnetized particles around the magnetically charged Bardeen BH, assuming the particle's motion occurs in the equatorial plane in the proper observation frame, and the direction of the magnetic dipole moment of the particles is always kept radially and its magnitude is constant. Moreover, the dynamics of magnetically charged particles are also studied, and it is shown that both the energy and angular momentum of the particles corresponding to circular orbits increases with the increase of their magnetic charge. Finally, we also study collisions of magnetized, electrically neutral, and magnetically charged particles around the Bardeen BHs, where we provide analyses of critical angular momentum that may allow collision of the particles near-horizon radius, producing enormous values of center of mass energy of the collisions.