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Dynamics of perturbations of rotating black holes
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We present a numerical study of the time evolution of perturbations of rotating black holes. The solutions are obtained by integrating the Teukolsky equation written as a first-order in time, coupled system of equations, in a form that explicitly captures its hyperbolic structure. We address the numerical difficulties of solving the equation in its original form. We follow the propagation of generic initial data through the burst, quasinormal ringing and power-law tail phases. In particular, we calculate the effects due to the rotation of the black hole on the scattering of incident gravitational wave pulses. These results may help explain how the angular momentum of the black hole affects the gravitational waves that are generated during the final stages of black hole coalescence.
Forward citations
Cited by 4 Pith papers
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Turbulent accretion disks can stochastically excite black hole quasinormal ringing, but the resulting gravitational-wave background is below the reach of near-term detectors.
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Discrete symmetries of modified Teukolsky equations
Complex modifications of the Teukolsky potential break m=0 QNM degeneracy and can inject non-physical mode branches when frequency-domain multipole-dependent potentials are evolved in time.
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The Nonlinear Tails in Black Hole Ringdown: the Scattering Perspective
Nonlinear ringdown tails in the transverse-traceless gauge decay as t^{-(2ℓ+1)}, and this paper rederives that law from in-in scattering diagrams.
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