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The interstellar medium of the most luminous galaxies, near and far

Sep. 15 - 14:30 - 2022

Speaker: Tanio Diaz-Santos (Foundation for Research and Technology Hellas, Heraklion)

Title: The interstellar medium of the most luminous galaxies, near and far


Most galaxies in the universe spend their lives inhabiting what is called the main-sequence (MS) of star-formation, a peaceful and gentle state in which galaxies form stars and feed their central massive black holes (BHs) in a steady manner. However, simulations and observations suggest that, at least once in their life-times, galaxies undergo a merger event during which their star formation efficiencies and BH accretion rates drastically increase over a short period of time. This phase in galaxy evolution occurs behind a thick blanket of dust and gas that obscures the central, very luminous power source(s). The study of this incredibly luminous galaxy population is therefore fundamental to our understanding of the main physical processes that drive the evolution of galaxies over cosmic time. In this talk I will present results obtained from infrared observations of nearby and high-redshift luminous infrared galaxies, for which in-depth studies of their interstellar medium have been only recently made possible by the advent of state-of-the-art telescope facilities such as Herschel, ALMA, and now JWST.

Room: Sala de Reuniões e Seminários (2-8.3) (2nd Floor of Physics Building)

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