Speaker
Matteo Boschini
(University of Milano-Bicocca)
Description
Gravitational wave astronomy relies on waveform approximants for both detection and parameter estimation. However, these models inherit uncertainties that grow increasingly relevant as detectors sensitivity improves. Notably, GW231123 revealed discrepancies between different waveform models. In this work we explore the possibility to perform parameter estimation directly from numerical relativity waveform using simulation-based inference. This approach avoids approximant calibration errors, even with the limited coverage of existing NR catalogs. I will present ongoing studies, highlighting both the advantages and current challenges of this "approximant-free" pathway.
| Parallel session | Gravitational Waves from Binary Systems |
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Author
Matteo Boschini
(University of Milano-Bicocca)
Co-authors
Davide Gerosa
(University of Milano-Bicocca)
Dr
James Alvey
(University of Cambridge)
Dr
Philippa Cole