Joint Astrophysical Colloquium
The ISM across cosmic times and how to disentangle its complexity
Livia Vallini (Scuola Normale Superiore - Pisa)
Thursday 07/04/2022 @ 11:30, Sala IV piano Battiferro + remote
Shedding light on the unfolding of galaxy evolution is a challenging task that requires a deep understanding of physical, chemical, and radiative processes occurring on a huge range of scales, from the IGM to sub-kpc scales in the ISM of galaxies. The advent of ALMA revolutionised the study of the ISM at early epochs, enabling the detection of [CII] 158um, [OIII] 88um, and CO line emission in normal galaxies at z>6 at unprecedented spatial and spectral resolution. This, together with JWST soon-to-be fully operational, usher in an era in which the combination of exquisite data and new generation of physically-rich, high resolution simulations will allow us to investigate the connection between ISM properties and the star formation across cosmic times. In this talk I will present physically motivated ISM models able to disentangle the impact of feedback, X-ray radiation, deviations from the Schmidt-Kennicutt relation, on line emission tracing all the gas phases, thus linking the ISM physics to fundamental processes shaping galaxy evolution.