Phys. Rev. D 56, 3395–3404 (1997)Dynamics of perturbations of rotating black holesReceived 25 February 1997; published in the issue dated 15 September 1997 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. 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 effects include the amplitude enhancement due to so-called super-radiance. The 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. © 1997 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevD.56.3395
DOI:
10.1103/PhysRevD.56.3395
PACS:
04.25.Dm, 04.30.Nk
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