J 2023

Charged particles motion and quasiperiodic oscillation in Simpson-Visser spacetime in the presence of external magnetic fields

VRBA, Jaroslav, Javlon RAYIMBAEV, Zdeněk STUCHLÍK a Bobomurat AHMEDOV

Základní údaje

Originální název

Charged particles motion and quasiperiodic oscillation in Simpson-Visser spacetime in the presence of external magnetic fields

Autoři

VRBA, Jaroslav (203 Česká republika, domácí), Javlon RAYIMBAEV (860 Uzbekistán), Zdeněk STUCHLÍK (203 Česká republika, domácí) a Bobomurat AHMEDOV (860 Uzbekistán)

Vydání

European Physical Journal C, New York (USA), SPRINGER, 2023, 1434-6044

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10308 Astronomy

Stát vydavatele

Spojené státy

Utajení

není předmětem státního či obchodního tajemství

Odkazy

Kód RIV

RIV/47813059:19630/23:A0000315

Organizační jednotka

Fyzikální ústav v Opavě

UT WoS

001072347900003

Klíčová slova anglicky

regular black-holes;X-rays binaries;mass;signature;spin

Štítky

Příznaky

Mezinárodní význam, Recenzováno
Změněno: 31. 1. 2024 10:18, Mgr. Pavlína Jalůvková

Anotace

V originále

The present work is devoted to the study of the dynamics of charged particles around Simpson-Visser black holes (with the length parameter l <= 2) and wormholes (l > 2) immersed in an external asymptotically uniform magnetic field. To do this, first, we solve the Maxwell equation for 4-potentials of the electromagnetic field and show that the difference between the numerical solution and Wald's solution is small enough to neglect it, which may allow us to use the solution obtained by Wald. We also study fundamental frequencies of in the vertical and radial oscillations of charged particles around circular stable orbits around the magnetized black hole. The effects of the magnetic interaction and length parameters on the fundamental frequencies. We investigate the quasiperiodic oscillations (QPOs) around the black hole in relativistic precession and epicyclic resonance models. It is also shown that the combined effects of magnetic interaction for negatively charged particles and length parameters can mimic the spacetime effects of the Schwarzschild black hole compensating for their effects, as well as the spin of rotating Kerr black holes. The distance between an orbit where a QPO is generated with the ratio of upper and lower frequencies 3: 2 and innermost stable circular orbits is also studied. It is found that the QPO orbits are very close to ISCO in the RP model at l < 2. This implies that the obtained result helps to determine the ISCO around black holes. We also study the applications of observed-QPOs around stellar-mass black holes in microquasars and supermassive black holes.