Le 12 avril 2013
À 10h30
Salle de Cours – Grande Coupole
Andrea MACCIO
MPIA Heidelberg, Allemagne
In a Universe dominated by dark matter and dark energy, galaxy formation is a complex mixture of hierarchical assembly, gas dissipation, merging events and secular evolution. Traditionally the Dark side of the Universe is supposed to shape the large scale structure of the Universe, while galaxy properties are thought to be mostly related to the baryonic (stars and gas) physics. Using high resolution numerical simulations of galaxy formation I will show that the interplay between the dark and the luminous side of the Universe extends to a deeper level, with all three components (Dark Energy, Dark Matter and Baryons) acting together in shaping galaxy properties. With the consequence that if we really want to understand cosmology we need to care about galaxy formation, and if we want to unveil galaxy formation we cannot neglect Cosmology.