J
2017
Generic rotating regular black holes in general relativity coupled to nonlinear electrodynamics
TOSHMATOV, Bobir, Zdeněk STUCHLÍK a Bobomurat AHMEDOV
Základní údaje
Originální název
Generic rotating regular black holes in general relativity coupled to nonlinear electrodynamics
Autoři
TOSHMATOV, Bobir (860 Uzbekistán, garant, domácí),
Zdeněk STUCHLÍK (203 Česká republika, domácí) a Bobomurat AHMEDOV (860 Uzbekistán)
Vydání
Physical Review D, 2017, 2470-0010
Další údaje
Typ výsledku
Článek v odborném periodiku
Stát vydavatele
Spojené státy
Utajení
není předmětem státního či obchodního tajemství
Kód RIV
RIV/47813059:19240/17:A0000022
Organizační jednotka
Filozoficko-přírodovědecká fakulta v Opavě
Klíčová slova anglicky
rotating black holes; no-horizon spacetimes; energy conditions; geodesic motion; nonlinear electrodynamics; epicyclic frequencies
Příznaky
Mezinárodní význam, Recenzováno
Návaznosti
GB14-37086G, projekt VaV.
V originále
We construct regular rotating black hole and no-horizon spacetimes based on the recently introduced spherically symmetric generic regular black hole spacetimes related to electric or magnetic charge under nonlinear electrodynamics coupled to general relativity that for special values of the spacetime parameters reduce to the Bardeen and Hayward spacetimes. We show that the weak and strong energy conditions are violated inside the Cauchy horizons of these generic rotating black holes. We give the boundary between the rotating black hole and no-horizon spacetimes and determine the black hole horizons and the boundary of the ergosphere. We introduce the separated Carter equations for the geodesic motion in these rotating spacetimes. For the most interesting new class of the regular spacetimes, corresponding for magnetic charges to the Maxwell field in the weak field limit of the nonlinear electrodynamics, we determine the structure of the circular geodesics and discuss their properties. We study the epicyclic motion of a neutral particle moving along the stable circular orbits around the "Maxwellian" rotating regular black holes. We show that epicyclic frequencies measured by the distant observers and related to the oscillatory motion of the neutral test particle along the stable circular orbits around the rotating singular and regular Maxwellian black holes are always smaller than ones in the Kerr spacetime.
Zobrazeno: 1. 11. 2024 08:24