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Accuracy Limitations of Existing Numerical Relativity Waveforms on the Data Analysis of Current and Future Ground-based Detectors by Jan, Aasim; Ferguson, Deborah; Lange, Jacob; Shoemaker, Deirdre; Zimmerman, Aaron is a scholarly article available to read on EtoBox.

What is Accuracy Limitations of Existing Numerical Relativity Waveforms on the Data Analysis of Current and Future Ground-based Detectors about?

As gravitational wave detectors improve in sensitivity, signal-to-noise ratios of compact binary coalescences will dramatically increase, reaching values in the hundreds and potentially thousands. Such strong signals offer both exciting scientific opportunities and pose formidable challenges to the template waveforms used for interpretation. Current waveform models are informed by calibrating or fitting to numerical relativity waveforms and such strong signals may unveil computational errors in generating these waveforms. In this paper, we isolate a single source of computational error, that of the finite grid resolution, and investigate its impact on parameter estimation for aLIGO and Cosmic Explorer. We demonstrate that increasing the inclination angle or decreasing the mass ratio $q$ ($q \leq 1 $) raises the resolution required for unbiased parameter estimation. We quantify the error associated with the highest-resolution waveform utilized in our study using an extrapolation procedure on the median of recovered posteriors and confirm the accuracy of current waveforms for the synthetic sources. We introduce a measure to predict the necessary numerical resolution for unbiased para

Author

Jan, Aasim; Ferguson, Deborah; Lange, Jacob; Shoemaker, Deirdre; Zimmerman, Aaron

Published

2023

Language

EN