Increasing the quantum-correction scale in Bardeen spacetime raises quasinormal frequencies, slows decay, suppresses low-frequency transmission, and reorganizes absorption cross-sections.
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The perfect fluid dark matter parameter dominates the effects on shadow size, quasinormal frequencies, and energy emission rates, while the Euler-Heisenberg correction remains subleading in the explored regime.
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Bardeen spacetime as quantum corrected black hole: Grey-body factors and quasinormal modes of gravitational perturbations
Increasing the quantum-correction scale in Bardeen spacetime raises quasinormal frequencies, slows decay, suppresses low-frequency transmission, and reorganizes absorption cross-sections.
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Shadow, Quasinormal Modes, Sparsity, and Energy Emission Rate of Euler-Heisenberg Black Hole Surrounded by Perfect Fluid Dark Matter
The perfect fluid dark matter parameter dominates the effects on shadow size, quasinormal frequencies, and energy emission rates, while the Euler-Heisenberg correction remains subleading in the explored regime.