2022
Shadow and massless particles around regular Bardeen black holes in 4D Einstein Gauss-Bonnet gravity
RAYIMBAEV, Javlon; Dilshodbek BARDIEV; Temurbek MIRZAEV; Ahmadjon ABDUJABBAROV; Akram KHALMIRZAEV et. al.Basic information
Original name
Shadow and massless particles around regular Bardeen black holes in 4D Einstein Gauss-Bonnet gravity
Authors
RAYIMBAEV, Javlon; Dilshodbek BARDIEV (860 Uzbekistan, belonging to the institution); Temurbek MIRZAEV; Ahmadjon ABDUJABBAROV and Akram KHALMIRZAEV
Edition
International Journal of Modern Physics D, 2022, 0218-2718
Other information
Language
English
Type of outcome
Article in a journal
Field of Study
10308 Astronomy
Country of publisher
Singapore
Confidentiality degree
is not subject to a state or trade secret
References:
Impact factor
Impact factor: 2.200
RIV identification code
RIV/47813059:19630/22:A0000229
Organization unit
Institute of physics in Opava
UT WoS
000807421800003
EID Scopus
2-s2.0-85129855788
Keywords in English
Black holes; magnetic fields; magnetized particles; relativistic stars; orbits
Tags
Tags
International impact, Reviewed
Changed: 1/2/2023 13:18, Mgr. Pavlína Jalůvková
Abstract
In the original language
In this paper, we study dynamics of massless (photon and neutrino-like) particles in the spacetime of regular Bardeen black hole (BH) in novel four-dimensional Einstein-Gauss-Bonnet (4D EGB) theory. First, we have analyzed the hor properties of the spacetime of the Bardeen BH with respect to the Gauss-Bonnet (GB) coupling parameter alpha. Our detailed analysis has shown that the GB coupling parameter is limited by maximum and minimum values at, alpha is an element of (-0.15 divided by 1) and the extreme value of magnetic charge of the BH depends on the parameter alpha. We have explored motion of neutrino-like particles and photons around the Bardeen BH. We have also explored the possibility of mimicking cases of the spin of Kerr BH and charge of Reissner-Nordstrom BH by the Bardeen charge, providing the same values of impact parameter for photons corresponding to the BH shadow size. Finally, we have investigated spherically infalling accretion and shadow of the Bardeen BHs in 4D EGB theory.