Articles produits par le groupe ondes gravitationnelles
Première détection pour Virgo
Mercredi 27 septembre 2017, les collaborations LIGO et Virgo ont annoncé en marge du sommet «G7 Science» à Turin une quatrième détection d’une fusion de deux trous noirs. Le signal…
Première détection d’ondes gravitationnelles
Le 11 Février 2016, les collaborations LIGO et Virgo annoncent la première détection d'ondes gravitationnelles. Celles-ci ont été produites par un système de deux trous noirs et détectées sur Terre…
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…
Cérémonie de remise des prix à l’institut de France
En 2015, Patrice Hello et le groupe Virgo-LAL ont reçu le grand prix scientifique de la Fondation Simone et Cino Del Duca. A cette occasion, le groupe s'est rendu à…
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…
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…
Limitations of the time slide method of background estimation.
Abstract: (IOP) Time shifting the output of gravitational wave detectors operating in coincidence is a convenient way of estimating the background in a search for short-duration signals. In this paper,…
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…
EGC: A time-frequency augmented template-based method for gravitational wave burst search in ground-based interferometers.
Abstract: (IOP) The detection of burst-type events in the output of ground gravitational wave detectors is particularly challenging. The potential variety of astrophysical waveforms, as proposed by simulations and analytic…