We introduce GWFAST (https://github.com/CosmoStatGW/gwfast), a Fisher information matrix Python code that allows for easy and efficient estimation of signal-to-noise ratios and parameter measurement errors for large catalogs of resolved sources observed by networks of gravitational-wave (GW) detectors. In particular, GWFAST includes the effects of the Earth's motion during the evolution of the signal, supports parallel computation, and relies on automatic differentiation rather than on finite differences techniques, which makes possible the computation of derivatives with accuracy close to machine precision. We also release the library WF4Py (https://github.com/CosmoStatGW/WF4Py) implementing state-of-the-art GW waveforms in Python. In this paper we provide a documentation of GWFAST and WF4Py with practical examples and tests of performance and reliability. In the companion paper Iacovelli et al. we present forecasts for the detection capabilities of the second and third generation of ground-based GW detectors, obtained with GWFAST.

Iacovelli, F., Mancarella, M., Foffa, S., Maggiore, M. (2022). GWFAST: A Fisher Information Matrix Python Code for Third-generation Gravitational-wave Detectors. ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, 263(1) [10.3847/1538-4365/ac9129].

GWFAST: A Fisher Information Matrix Python Code for Third-generation Gravitational-wave Detectors

Mancarella M.;
2022

Abstract

We introduce GWFAST (https://github.com/CosmoStatGW/gwfast), a Fisher information matrix Python code that allows for easy and efficient estimation of signal-to-noise ratios and parameter measurement errors for large catalogs of resolved sources observed by networks of gravitational-wave (GW) detectors. In particular, GWFAST includes the effects of the Earth's motion during the evolution of the signal, supports parallel computation, and relies on automatic differentiation rather than on finite differences techniques, which makes possible the computation of derivatives with accuracy close to machine precision. We also release the library WF4Py (https://github.com/CosmoStatGW/WF4Py) implementing state-of-the-art GW waveforms in Python. In this paper we provide a documentation of GWFAST and WF4Py with practical examples and tests of performance and reliability. In the companion paper Iacovelli et al. we present forecasts for the detection capabilities of the second and third generation of ground-based GW detectors, obtained with GWFAST.
Articolo in rivista - Articolo scientifico
gravitational waves; fisher formalism
English
2022
263
1
2
none
Iacovelli, F., Mancarella, M., Foffa, S., Maggiore, M. (2022). GWFAST: A Fisher Information Matrix Python Code for Third-generation Gravitational-wave Detectors. ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, 263(1) [10.3847/1538-4365/ac9129].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/400833
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