M. Pracchia

Search for Eccentric Black Hole Coalescences during the Third Observing Run of LIGO and Virgo

Adrian Abac, R. Abbott, Haruka Abe, F. Acernese et autres

Abstract Despite the growing number of binary black hole coalescences confidently observed through gravitational waves so far, the astrophysical origin of these binaries remains uncertain. Orbital eccentricity is one of the clearest tracers of binary formation channels. Identifying binary eccentricity, however, remains …

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Calibration of advanced Virgo and reconstruction of the detector strain h ( t ) during the observing run O3

F. Acernese, M. Agathos, A. Ain, S. Albanesi et autres

Abstract The three advanced Virgo and LIGO gravitational wave detectors participated to the third observing run (O3) between 1 April 2019 15:00 UTC and 27 March 2020 17:00 UTC, leading to several gravitational wave detections per month. This paper describes the advanced …

Tests of General Relativity with GWTC-3

The LIGO Scientific Collaboration, the KAGRA Collaboration, R. Abbott, H. Abe et autres

The ever-increasing number of detections of gravitational waves (GWs) from compact binaries by the Advanced LIGO and Advanced Virgo detectors allows us to perform ever-more sensitive tests of general relativity (GR) in the dynamical and strong-field regime of gravity. We perform a …

Search for Lensing Signatures in the Gravitational-Wave Observations from the First Half of LIGO–Virgo’s Third Observing Run

R. Abbott, T. D. Abbott, S. Abraham, F. Acernese et autres

Abstract We search for signatures of gravitational lensing in the gravitational-wave signals from compact binary coalescences detected by Advanced Laser Interferometer Gravitational-wave Observatory (LIGO) and Advanced Virgo during O3a, the first half of their third observing run. We study: (1) the expected …

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