A rotating black hole in a Dehnen (1,4,γ) halo has its quasibound frequencies shifted by an effective mass scale set by halo parameters, which also lowers the instability threshold and narrows the superradiant window.
Rotating and non-linear magnetic-charged black hole with an anisotropic matter field
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abstract
We present the solution of a non-linear magnetic-charged black hole with an anisotropic matter field and further extend it to obtain the corresponding rotating black hole solution using the modified Newman-Janis algorithm. The event horizon and ergosphere of the rotating black hole are studied in terms of the perspective of geometric properties, revealing that the rotating black hole can have up to three horizons. The first law of thermodynamics and the squared-mass formula for the rotating black hole are derived from a thermodynamic perspective, based on which we obtain the thermodynamic quantities and study the thermodynamic stability of the rotating black hole. Additionally, we calculate the Penrose process for the rotating black hole, indicating the influence of various black hole parameters on the maximal efficiency of the Penrose process.
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gr-qc 1years
2026 1verdicts
UNVERDICTED 1representative citing papers
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Tuning A Rotating Black Hole Spectrum with Dark Matter Halo: Quasibound States, Scalar Cloud, Black Hole Bomb and Superradiant Scattering
A rotating black hole in a Dehnen (1,4,γ) halo has its quasibound frequencies shifted by an effective mass scale set by halo parameters, which also lowers the instability threshold and narrows the superradiant window.