Modeling Compact Binary Merger Waveforms Beyond General Relativity

Abstract

The parameterized post-Einsteinian framework modifies inspiral waveform models to incorporate effects beyond General Relativity. We extend the existing model into the merger-ringdown regime. The modification introduced here adds a single degree of freedom that corresponds to a change in the binary coalescence time. Other merger properties remain as predicted by GR. We discuss parameter estimation with this model, and how it can be used to extract information from beyond-GR waveforms.

12 pages, 12 figures

References in corpus (2)

• Model Waveform Accuracy Standards for Gravitational Wave Data Analysis
• Parametrized test of parity-violating gravity using GWTC-1 events

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• Gravitational-wave constraints on noncommutative spacetime from GW190814