Parameter estimation of the Bardeen-Kerr black hole in cloud of strings using shadow analysis

We consider the rotating generalization of the Bardeen black hole solution in the presence of a cloud of strings (CoS). The parameter space for which the black hole horizon exists is determined. We also study the static limit surface and the ergo-region in the presence of the CoS parameter. We consi...

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Veröffentlicht in:Physica scripta 2024-02, Vol.99 (2), p.25022
Hauptverfasser: Kumar Vishvakarma, Bijendra, Veer Singh, Dharm, Siwach, Sanjay
Format: Artikel
Sprache:eng
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Zusammenfassung:We consider the rotating generalization of the Bardeen black hole solution in the presence of a cloud of strings (CoS). The parameter space for which the black hole horizon exists is determined. We also study the static limit surface and the ergo-region in the presence of the CoS parameter. We consider photon orbits and obtain the deformation of black hole shadows due to rotation for various values of the CoS parameter. The shadow deformation is used to determine the black hole spin for different values of the black hole parameters.
ISSN:0031-8949
1402-4896
DOI:10.1088/1402-4896/ad1da1