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Séminaires

Near Field Cosmology: From an Observational to a Numerical local Universe

par Jenny SORCE (Observatoire Astronomique de Strasbourg & Leibniz-Institut für Astrophysik, Potsdam)

Europe/Paris
Description

 The local Universe, may well be the best-observed volume of the Universe, its particularities with respect to other Universe patches are unknown. Using positions and peculiar velocities of galaxies, we are now able to reproduce in simulations the full three dimensional distribution of matter in the observed nearby large-scale structure with an accuracy of a few megaparsecs. The nearby objects like Virgo, the Local Group, etc, can be studied in great details and compared directly with observations to understand their formation and to highlight the specificities of our environment. Additionally, in future high precision observational surveys, the foreground effect of the local Universe can be accounted for.

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