Astrolunch: Umberto Maio

Tue, 10/05/202212:30-13:30

Title: Primordial structure formation

Abstract: In this talk, I will review the basic knowledge about cosmic structure formation in a cosmological context, as retrieved by modern numerical simulations including detailed atomic and molecular chemistry, star formation processes and feedback effects, as well as the origin of heavy elements from metal enrichment in early cosmic epochs. Theoretical results will be confronted with a number of physical observables (e.g. DLAs, GRB hosts) to draw conclusions on the features of first stars, the role of different stellar populations (popIII vs. popII-I) and the effects of UV radiation on the cosmological evolution of gas (HI and H2) and galaxies.