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…
Pôle Astroparticules, Astrophysique et Cosmologie (A2C)
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…
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…
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…
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…
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…
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,…
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…
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…
Abstract: (arXiv) This paper deals with the reconstruction of the direction of a gravitational wave source using the detection made by a network of interferometric detectors, mainly the LIGO and…