Gravitation

On June 29, 2023, as part of a worldwide network dedicated to pulsar observation, a European consortium published a series of results in the journal Astronomy and Astrophysics, based on data collected over the last quarter-century by six of the world's most sensitive radio telescopes. The data from the European consortium, along with those from their American, Australian and Chinese counterparts, contain very solid evidence of the existence of gravitational waves, captured at very low frequencies, which are thought to originate from pairs of supermassive...
Dans le cadre d’un réseau mondial dédié à l’observation des pulsars, un consortium européen publie le 29 juin 2023 dans la revue Astronomy and Astrophysics une série de résultats issus de données collectées depuis un quart de siècle, par six des radiotélescopes les plus sensibles au monde. Les données du consortium européen, de même que celles de leurs homologues américain, australien et chinois, contiennent les indices très solides de l'existence d'ondes gravitationnelles, captées dans de très basses fréquences, qui proviendraient de couples de trous noirs...
Wanda Diaz-Merced in the spotlight in June.

Wanda Diaz-Merced à l'honneur au mois de juin.

Experimental validation of the high precision interferometric instruments onboard LISA

The proposed thesis subject is focused on the global validation process of the instrument metrological performance. Preliminary concepts exist for the various optical metrology test benches that will be required measure the instrumental characteristics. Obviously, the full constellation cannot be tested in flight conditions on ground. The instrument validation will therefore rely on a ingenious combination of specific measurements performed on the different subsystems, as well as the results obtained with specifically designed lab experiments.

Searching for Supermassive Black Hole Binaries with Pulsar Timing Array

International Pulsar Timing Array is a consortium of four collaborations working on detecting gravitational waves (GWs) in the nano-Hz band. The analysis of the third combined dataset of radio observations from 9 worldwide telescopes will start at the end of 2023. We are searching for GWs from a population of supermassive black hole binaries (SMBHBs). The expected signal could be decomposed into two components: the stochastic signal that is the result of an incoherent superposition of thousands of weak signals and the resolvable signal(s) from particularly massive and nearby binaries.

Poste Maître.sse de Conférences 2023 -- LISA

L'Université Paris Cité ouvre un poste de Maître.sse de Conférences axé sur la
préparation de l’analyse des données de la mission LISA.

Le.a candidat.e retenu.e sera amené.e à travailler en astronomie des ondes gravitationnelles. En particulier, cette personne est appelée à devenir membre du projet LISA et à contribuer au développement et à la gestion du centre de traitement des données LISA en maintenant des liens étroits avec le CNES.

Informations administratives concernant ce poste

Quantum noise reduction for new-generation gravitational-wave detectors


Second generation gravitational wave (GW) detectors opened era of gravitational wave astronomy with the first GW detection in 2015 and are now approaching their design sensitivity. During the 3 past observations runs, they detected 90 GW signals produced by the merging of binary compact objects, providing a wealth of scientific results ranging from the general relativity, to astrophysics and cosmology.
 

Quantum noise reduction for new-generation gravitational-wave detectors

Second generation gravitational wave (GW) detectors opened era of gravitational wave astronomy with the first GW detection in 2015 and are now approaching their design sensitivity. During the 3 past observations runs, they detected 90 GW signals produced by the merging of binary compact objects, providing a wealth of scientific results ranging from the general relativity, to astrophysics and cosmology.
 

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