Articles produits par le groupe ondes gravitationnelles

GW170814: A three-detector observation of gravitational waves from a binary black hole coalescence

Abstract: (APS) On August 14, 2017 at 10∶30:43 UTC, the Advanced Virgo detector and the two Advanced LIGO detectors coherently observed a transient gravitational-wave signal produced by the coalescence of…

Continuer la lectureGW170814: A three-detector observation of gravitational waves from a binary black hole coalescence

Observation of Gravitational Waves from a Binary Black Hole Merger

Abstract: On September 14, 2015 at 09:50:45 UTC the two detectors of the Laser Interferometer Gravitational-Wave Observatory simultaneously observed a transient gravitational-wave signal. The signal sweeps upwards in frequency from…

Continuer la lectureObservation of Gravitational Waves from a Binary Black Hole Merger

Improved constraint on the primordial gravitational-wave density using recent cosmological data and its impact on cosmic string models

Abstract: (IOP) The production of a primordial stochastic gravitational-wave (GW) background by processes occuring in the early Universe is expected in a broad range of models. Observing this background would…

Continuer la lectureImproved constraint on the primordial gravitational-wave density using recent cosmological data and its impact on cosmic string models

Performance of a thermally deformable mirror for correction of low-order aberrations in laser beams

Abstract The thermally deformable mirror is a device aiming at correcting beam-wavefront distortions for applications where classical mechanical methods are precluded by noise considerations, as in advanced gravitational wave interferometric…

Continuer la lecturePerformance of a thermally deformable mirror for correction of low-order aberrations in laser beams

On the background estimation by time slides in a network of gravitational wave detectors.

Abstract: (arXiv) Time shifting the outputs of Gravitational Wave detectors operating in coincidence is a convenient way to estimate the background in a search for short duration signals. This procedure…

Continuer la lectureOn the background estimation by time slides in a network of gravitational wave detectors.