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Journal Article

Mode coupling in the nonlinear response of black holes

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Husa,  Sascha
Astrophysical Relativity, AEI-Golm, MPI for Gravitational Physics, Max Planck Society;

Winicour,  Jeffrey
Geometric Analysis and Gravitation, AEI-Golm, MPI for Gravitational Physics, Max Planck Society;

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Citation

Zlochower, Y., Gomez, R., Husa, S., Lehner, L., & Winicour, J. (2003). Mode coupling in the nonlinear response of black holes. Physical Review D, 68: 084014.


Cite as: https://hdl.handle.net/11858/00-001M-0000-0013-52B9-F
Abstract
We model the nonlinear generation of waveforms from an excited non-spinning black hole. The results exhibit several important features. When compared to the results obtained by a linearized approximation, we observe large phase shifts, a stronger than linear generation of gravitational output and considerable generation of radiation in polarization states (which are not found in the linearized approximation). Additionally, the amplitudes of modes generated by nonlinear effects have simple scaling properties which can be utilized in an economical way to produce a waveform catalogue.