GEPI

De la conception instrumentale
à l’exploitation des observables
Accueil > Séminaires > Evolution of the star formation and (...)

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

Emanuele Daddi (CEA

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.