Exploring the dark Universe with Euclid - Yannick Mellier

Tuesday 3 Mar 2015, 11:00 → 12:00 Europe/Paris

Euclid is an ESA M-class mission that was selected in October 2011. Euclid aims at understanding the origin of the accelerating expansion of the Universe by observing signatures of dark energy, modied gravity and dark matter on the expansion history and the growth rate of cosmic structure. Euclid will use 5 complementary and/or independent cosmological probes: weak lensing, baryon acoustic oscillations, redshift-space distortion, clusters of galaxies and in- tegrated Sachs-Wolf eect. The payload module will be composed of a 1.2 meter telescope that will feed a wide-field high image quality optical imager and a wide field near-infrared photometer and spectrometer. The instruments will measure the shapes of about 1.5 billion galaxies and redshifts of several tens of millions galaxies observed over the whole darkest extragalactic sky (15,000 square degrees). I will present the mission and its scientific objectives and will show its performance and capability to pin down the properties and the history of the dark universe.

Yannick Mellier Euclid Consortium Lead Institut d'Astrophysique de Paris and CEA/IRFU/SAp Saclay

Transparents Euclid-LPSC-Grenoble-03MAR2015.pdf