Seminar: The mass and energy distribution of the first stars
- Date: 23 January 2025, 14:00–15:00
- Location: Ångström Laboratory, 90103Å
- Type: Seminar
- Lecturer: Ioanna Koutsouridou, University of Florence
- Organiser: Division of Astronomy and Space Physics, Department of Physics and Astronomy
- Contact person: Anish Amarsi
The nature of the first (Pop III) stars is still a mystery and the energy distribution of the first supernovae is completely unexplored. With no direct observations of Pop III stars, researchers rely on inferring their properties by analyzing the abundance patterns of their long-lived descendants in the Milky Way (MW) and its dwarf satellites. However, stellar evolution models reveal degeneracies in the predicted Pop III metal yields, among the unknown Pop III masses and explosion energies, that can complicate these efforts. Using a state-of-the-art cosmological model for the formation of a MW-analogue, we explore how the observed frequency of Pop III descendants can be employed to break these degeneracies.
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We shall leave for lunch at around 12:15. There might be fika after the seminar.