CPC Seminar: Knocking on the doors of dusty giants in the Universe

  • Feb. 15, 2021, 2:00 pm US/Central
  • Darko Donevski, SISSA - Italy

Abstract: Since their initial discovery 20 years ago, very distant and massive galaxies that form prodigious amount of young stars – so-called dusty, star-forming galaxies – represent a serious challenge for the theory of galaxy formation. On the one hand, they are difficult to detect because they reside in dense regions of the distant Universe and contain dusty particles which absorb most of the optical light radiated by young stars. On the other hand, many of these dusty ’Giants’ have been formed when the Universe was very young, sometimes even less than 1 billion years. It remains unclear how such a large amounts of dust have been produced so rapidly early on in the Universe. One way of answering this question is by analysing the ratio between the dust and stellar masses in distant galaxies. In this talk, I will present how to link the state-of-the-art simulations and the observations of 300 galaxies detected with ALMA, and apply the dust-to-stellar mass ratio as a tool to understand the complex processes involved in the production of dust, metals and stars in galaxy evolution.

For more information, please contact Yu-Dai Tsai at ytsaiATfnal.gov.