The Euclid Satellite Mission to map the Dark Universe: an Overview.
Relazione su invito
III - Astrofisica
Aula 32B-3 - Mercoledì 19 h 09:00 - 13:00
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Euclid is a European-led satellite mission designed to survey a significant fraction of the observable Universe. Its main science goal is to understand the origin of the accelerated expansion of the Universe, whether it is driven by the elusive Dark Energy or it is a manifestation of a failure of Einstein's gravity Theory on cosmological scales. To achieve this ambitious goal, Euclid will carry out two separate surveys: one optimised to measure the Gravitational Lensing distorted images of about one billion galaxies and the other aimed at tracing the spatial distribution of mass in the Universe traced by some 30 million objects. In addition to these two main probes, the wealth of information that will be collected during the six-year long mission will allow us to cast light on a variety of highly relevant open issues such as the nature of the Dark Matter, the active neutrino hierarchy, the properties of our Universe during its early inflationary period and the physical mechanisms that shaped the formation and evolution of the cosmic structures. In this talk, I will review the status of the scientific and technical activity in preparation for the launch, which is expected at the beginning of the next decade.