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Dynamics of perturbations of rotating black holes

Dynamics of perturbations of rotating black holes
Dynamics of perturbations of rotating black holes
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.
1550-7998
3395-3404
Krivan, William
581d3781-09ac-4f84-b51e-798f828484bc
Laguna, Pablo
c1176fd8-1ef9-4f66-87b7-3b705e49b347
Papadopoulos, Philippos
955b8351-d6e2-48d5-a6bb-79d17117eed6
Andersson, Nils
2dd6d1ee-cefd-478a-b1ac-e6feedafe304
Krivan, William
581d3781-09ac-4f84-b51e-798f828484bc
Laguna, Pablo
c1176fd8-1ef9-4f66-87b7-3b705e49b347
Papadopoulos, Philippos
955b8351-d6e2-48d5-a6bb-79d17117eed6
Andersson, Nils
2dd6d1ee-cefd-478a-b1ac-e6feedafe304

Krivan, William, Laguna, Pablo, Papadopoulos, Philippos and Andersson, Nils (1997) Dynamics of perturbations of rotating black holes. Physical Review D, 56 (6), 3395-3404. (doi:10.1103/PhysRevD.56.3395).

Record type: Article

Abstract

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.

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Published date: 1997

Identifiers

Local EPrints ID: 29167
URI: https://eprints.soton.ac.uk/id/eprint/29167
ISSN: 1550-7998
PURE UUID: dd2b3797-ae3c-413d-8f56-8e0fee43cc90
ORCID for Nils Andersson: ORCID iD orcid.org/0000-0001-8550-3843

Catalogue record

Date deposited: 07 Feb 2007
Last modified: 15 Jul 2019 19:09

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