Stefania Salvadori - Near-field cosmology and the first stars

Near-field cosmology and the first stars

by Stefania Salvadori (Università di Firenze)

Abstract: The first stars profoundly affected the unfolding of our Universe. Their mass distribution is unknown, but it controls the injection of energy, momentum, and newly created heavy elements into the gas, affecting subsequent star-formation along with the build-up of the first galaxies. A direct exploration of the first star formation episodes is a tremendous challenge. But in the Local Group, ancient stars can be individually resolved, providing us with the unique opportunity to indirectly study the properties of the star-forming gas when the Universe was less than 1 Gyr old. In this talk, I will discuss the most recent observational and theoretical findings for ancient metal-poor stars and galaxies. Further, I will present new ideas to identify the direct descendants of the first stars, to constrain the mass distribution of this "invisible" stellar population, and to link Near- and Far-Field cosmology.

Contact: Valentina D'Odorico

Join in person in the Library seminar room (Castello Basevi - reservation required, please book here below) or remotely on meet.google.com/zfy-mtgs-tpc

Event Information

Event Date 27-10-2021 11:30
Registered 18
Available Place 3

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