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 Relative Articles Unambiguous determination of gravitational waveforms from binary black hole mergers The Samurai Project: verifying the consistency of black-hole-binary waveforms for gravitational-wave detection Binary black hole merger dynamics and waveforms Uncertainty in hybrid gravitational waveforms: Optimizing initial orbital frequencies for binary black-hole simulations Accurate gravitational waveforms for binary-black-hole mergers with nearly extremal spins Comparisons of binary black hole merger waveforms Gravitational waveforms for black hole binaries with unequal masses A simple model of complete precessing black-hole-binary gravitational waveforms High-accuracy waveforms for binary black hole inspiral, merger, and ringdown High Accuracy Gravitational Waveforms from Black Hole Binary Inspirals Using OpenCL More...
Physics  2007

# Gravitational-wave data analysis using binary black-hole waveforms

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Abstract:

Coalescing binary black-hole systems are among the most promising sources of gravitational waves for ground-based interferometers. While the \emph{inspiral} and \emph{ring-down} stages of the binary black-hole coalescence are well-modelled by analytical approximation methods in general relativity, the recent progress in numerical relativity has enabled us to compute accurate waveforms from the \emph{merger} stage also. This has an important impact on the search for gravitational waves from binary black holes. In particular, while the current gravitational-wave searches look for each stage of the coalescence separately, combining the results from analytical and numerical relativity enables us to \emph{coherently} search for all three stages using a single template family. Complete' binary black-hole waveforms can now be produced by matching post-Newtonian waveforms with those computed by numerical relativity. These waveforms can be parametrised to produce analytical waveform templates. The complete' waveforms can also be used to estimate the efficiency of different search methods aiming to detect signals from black-hole coalescences. This paper summarises some recent efforts in this direction.

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