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Evolution of the star formation and gas content in galaxies through cosmic time

Emanuele Daddi (CEA

Évènements associés

  • Le lundi 17 mars 2014 de 11:00 à 12:00 - lieu : Salle 108, Bâtiment des Communs - Meudon

I will discuss recent observational advances into the mapping and understanding of the assembly of galaxies through cosmic time, with particular focus on the high cosmic noon period from z=1 to 3, when the star formation rate density in galaxies peaked. A simple scenario is emerging in which gas fractions as regulated by intergalactic inflows drive the rise of galaxies activity towards high redshifts,including star formation and AGN. A small population of strong burst is necessary to account for the properties of the most bolometrically luminous systems. While this simple and promising scenario is still to be fully validated at z<2-3, at even higher redshifts a global empirical mapping of galaxy evolution is still to be developed, which sets exciting expectations in the years to come.