Time: 16:00 h
Author: Roberto Decarli
Our understanding of galaxy formation and evolution critically depends on our ability of exposing the properties of the gaseous content of galaxies throughout cosmic history: how much gas is there, in which phase (ionized, atomic, molecular?), in which physical conditions (temperature, density), how efficiently does it turn into stars? We are now entering an exciting era where these questions can be addressed via observations of various gas tracers, especially at mm and sub-mm wavelengths. I will review lessons we have learned so far from various campaigns aimed at characterizing the gas content in galaxies in various cosmic epochs, from the cosmic dawn to the present age.