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Gravitational Radiation Characteristics of Nonspinning Black-Hole Binaries"We present a detailed descriptive analysis of the gravitational radiation from binary mergers of non-spinning black holes, based on numerical relativity simulations of systems varying from equal-mass to a 6:1 mass ratio. Our analysis covers amplitude and phase characteristics of the radiation, suggesting a unified picture of the waveforms' dominant features in terms of an implicit rotating source. applying uniformly to the full wavetrain, from inspiral through ringdown. We construct a model of the late-stage frequency evolution that fits the $\ell = m$ modes, and identify late-time relationships between waveform frequency and amplitude. These relationships allow us to construct a predictive model for the late-time waveforms, an alternative to the common practice of modelling by a sum of quasinormal mode overtones. We demonstrate an application of this in a new effective-one-body-based analytic waveform model."
Document ID
20080037977
Acquisition Source
Goddard Space Flight Center
Document Type
Conference Paper
Authors
Kelly, Barnard
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Date Acquired
August 24, 2013
Publication Date
June 16, 2008
Subject Category
Astronomy
Meeting Information
Meeting: 7th International LISA Symposium
Location: Barcelona
Country: Spain
Start Date: June 16, 2008
End Date: June 20, 2008
Funding Number(s)
CONTRACT_GRANT: NNH06CC03B
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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