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

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10308 Astronomy

Stát vydavatele

Spojené státy

Utajení

není předmětem státního či obchodního tajemství

Odkazy

Physical Review D

Kód RIV

RIV/47813059:19240/17:A0000022

Organizační jednotka

Filozoficko-přírodovědecká fakulta v Opavě

DOI

http://dx.doi.org/10.1103/PhysRevD.95.084037

UT WoS

000399807800009

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.
Změněno: 4. 4. 2018 15:27, RNDr. Jan Hladík, Ph.D.

Anotace

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