Amphithéâtre Marguerite de Navarre, Site Marcelin Berthelot
Open to all
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Abstract

Theoretical and observational advances in modern astrophysics and cosmology tell us that the Universe today is made up of a very small fraction (~5%) of ordinary matter, the rest being made up of constituents whose nature is still unknown: dark matter and dark energy.
Observations reveal that large-scale matter is arranged in a gigantic cosmic web populated by galaxies. It is made up of voids, walls and cosmic filaments, at the intersection of which are the nodes containing the largest gravitational structures, galaxy clusters.
The distribution of matter in the cosmic web is the result of the hierarchical growth of structures during the evolution of the Universe since the Big Bang. By mapping the sky, cosmological surveys reveal the spatial distribution of matter throughout the history of the Universe. We'll survey the cosmic web to discover what the large-scale distribution of matter tells us about the intersecting history of the evolution of structures and the Universe.

Speaker(s)

Nabila Aghanim

IAS-Orsay