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Astro Seminar

Dusty, normal galaxies in the Epoch of Reionization

Speaker: Andrea Ferrara (Pisa)
Date: Wednesday 2 June 2021
Time: 14:00
Venue: Zoom

When did dust first appear on the cosmic scene? What were the sources that enabled a fast dust enrichment of the interstellar medium of early galaxies? At a time when ALMA begins to scratch the surface of these problems, it is crucial and timely to understand these important and yet unknown aspects of early galaxy formation and evolution. Dust could not only determine some of the physical properties and the star formation history of pristine systems; it might also affect their visibility and infrared emission. In addition, it might be also responsible for the transition from metal-free (Pop III) stars to the most common ones seen today. These problems need to be solved in the framework of studies that combine cosmological simulations and the most advanced IR/sub-mm observations. I will review in detail the present status of this blossoming field.