In the NED-corrected charged black hole spacetime, scalar-field quasinormal mode frequencies and damping rates both decrease with the NED parameter, and the low-frequency greybody factor increases.
1: Variation of the metric function f(r) with the radial coordinate r for different values of ζ, where ζ = 0 corresponds to the case of the standard R - N black hole
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Quasinormal Modes and Greybody Factors of Scalar Field Perturbations in the NED Corrected Charged Black Hole Spacetime
In the NED-corrected charged black hole spacetime, scalar-field quasinormal mode frequencies and damping rates both decrease with the NED parameter, and the low-frequency greybody factor increases.