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- W4287179904 abstract "Ongoing observations in the strong-field regime are in optimal agreement with general relativity, although current errors still leave room for small deviations from Einstein's theory. Here we summarise our recent results on superradiance of scalar and electromagnetic test fields in Kerr-like spacetimes, focusing mainly on the Konoplya--Zhidenko metric. We observe that, while for large deformations with respect to the Kerr case superradiance is suppressed, it can be nonetheless enhanced for small deformations. We also study the superradiant instability caused by massive scalar fields, and we provide a first estimate of the effect of the deformation on the instability timescale." @default.
- W4287179904 created "2022-07-25" @default.
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- W4287179904 date "2021-05-19" @default.
- W4287179904 modified "2023-09-29" @default.
- W4287179904 title "Superradiance in deformed Kerr black holes" @default.
- W4287179904 hasPublicationYear "2021" @default.
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