374 citations · 2.5k across the 51 of their papers we have counts for
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Scalar perturbations of higher dimensional rotating and ultra-spinning black holes
Vitor Cardoso, George Siopsis, Shijun Yoshida
We investigate the stability of higher dimensional rotating black holes against scalar perturbations. In particular, we make a thorough numerical and analytical analysis of six-dim…
Quasinormal modes and stability of the rotating acoustic black hole: numerical analysis
Vitor Cardoso, Jose' P. S. Lemos, Shijun Yoshida
The study of the quasinormal modes (QNMs) of the 2+1 dimensional rotating draining bathtub acoustic black hole, the closest analogue found so far to the Kerr black hole, is perform…
R-mode oscillations of rapidly rotating barotropic stars in general relativity: Analysis by the relativistic Cowling approximation
Shijun Yoshida, Shin'ichirou Yoshida, Yoshiharu Eriguchi
We develop a numerical scheme for obtaining the -mode oscillations of rapidly rotating relativistic stars. In the present scheme, we neglect all metric perturbations and only ta…
The black hole bomb and superradiant instabilities
Vitor Cardoso, Oscar J. C. Dias, Jose' P. S. Lemos +1
A wave impinging on a Kerr black hole can be amplified as it scatters off the hole if certain conditions are satisfied giving rise to superradiant scattering. By placing a mirror a…
Highly Damped Quasinormal Modes of Kerr Black Holes: A Complete Numerical Investigation
Emanuele Berti, Vitor Cardoso, Shijun Yoshida
We compute for the first time very highly damped quasinormal modes of the (rotating) Kerr black hole. Our numerical technique is based on a decoupling of the radial and angular equ…