Publication

Publications scientifiques du pôle A2C

Search for Post-merger Gravitational Waves from the Remnant of the Binary Neutron Star Merger GW170817

Abstract: (IOP) The first observation of a binary neutron star (NS) coalescence by the Advanced LIGO and Advanced Virgo gravitational-wave (GW) detectors offers an unprecedented opportunity to study matter under…

Continuer la lectureSearch for Post-merger Gravitational Waves from the Remnant of the Binary Neutron Star Merger GW170817

Constraints on cosmic strings using data from the first Advanced LIGO observing run

Abstract: (APS) Cosmic strings are topological defects which can be formed in grand unified theory scale phase transitions in the early universe. They are also predicted to form in the…

Continuer la lectureConstraints on cosmic strings using data from the first Advanced LIGO observing run

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.

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…

Continuer la lectureEGC: A time-frequency augmented template-based method for gravitational wave burst search in ground-based interferometers.