TOSHMATOV, Bobir, Zdeněk STUCHLÍK a Bobomurat AHMEDOV. Electromagnetic perturbations of black holes in general relativity coupled to nonlinear electrodynamics: Polar perturbations. Physical Review D. roč. 98, č. 8, s. "085021-1"-"085021-11", 11 s. ISSN 2470-0010. doi:10.1103/PhysRevD.98.085021. 2018.
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Základní údaje
Originální název Electromagnetic perturbations of black holes in general relativity coupled to nonlinear electrodynamics: Polar perturbations
Autoři TOSHMATOV, Bobir (860 Uzbekistán, garant, domácí), Zdeněk STUCHLÍK (203 Česká republika, domácí) a Bobomurat AHMEDOV (860 Uzbekistán).
Vydání Physical Review D, 2018, 2470-0010.
Další údaje
Originální jazyk angličtina
Typ výsledku Článek v odborném periodiku
Obor 10308 Astronomy
Stát vydavatele Spojené státy
Utajení není předmětem státního či obchodního tajemství
WWW URL
Kód RIV RIV/47813059:19240/18:A0000246
Organizační jednotka Filozoficko-přírodovědecká fakulta v Opavě
Doi http://dx.doi.org/10.1103/PhysRevD.98.085021
UT WoS 000448599200014
Klíčová slova anglicky charged black holes; electromagnetic perturbations; nonlinear electrodynamics; polar perturbations
Příznaky Mezinárodní význam, Recenzováno
Návaznosti GB14-37086G, projekt VaV.
Změnil Změnil: RNDr. Jan Hladík, Ph.D., učo 25379. Změněno: 4. 4. 2019 12:18.
Anotace
The axial electromagnetic (EM) perturbations of the black hole (BH) solutions in general relativity coupled to nonlinear electrodynamics (NED) were studied for both electrically and magnetically charged BHs, assuming that the EM perturbations do not alter the spacetime geometry in our preceding paper [Phys. Rev. D 97, 084058 (2018)]. Here, as a continuation of that work, the formalism for the polar EM perturbations of the BHs in general relativity coupled to the NED is presented. We show that the quasinormal modes (QNMs) spectra of polar EM perturbations of the electrically and magnetically charged BHs in the NED are not isospectral, contrary to the case of the standard Reissner-Nordstrom BHs in the classical linear electrodynamics. It is shown by the detailed study of QNMs properties in the eikonal approximation that the EM perturbations can be a powerful tool to confirm that in the NED light ray does not follow the null geodesics of the spacetime. By specifying the NED model and comparing axial and polar EM perturbations of the electrically and magnetically charged BHs, it is shown that QNM spectra of the axial EM perturbations of magnetically (electrically) charged BH and polar EM perturbations of the electrically (magnetically) charged BH are isospectral, i.e., omega^{ax}_{mag} approximate to omega^{pol}_{el} (omega^{pol}_{mag} approximate to omega^{ax}_{el}).
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