IFPU Focus Week: Enigmatic first stars and where to find them

Session

Day 4 morning

18 May 2023, 09:00

IFPU, Trieste, Italy

25. The effects of the population III stars on the chemical evolution of the Milky Way

Francesca Matteucci (University of Trieste)

18/05/2023, 09:00

I will review results on the effects of population III stars on the chemical abundances of the population II stars. Some of the unsolved problems related to this topics will be discussed.

26. First stars and first galaxies: how to constrain their nature

Stefania Salvadori (University of Florence)

18/05/2023, 09:30

18. The first source(s) of neutron capture elements

Gabriele Cescutti (Univ. of Trieste)

18/05/2023, 10:00

23. Chasing the Most Metal-Poor Stars

David Aguado (Instituto de Astrofisica de Canarias)

18/05/2023, 11:00

During Big Bang Nucleosynthesis, hydrogen, helium, and small traces of lithium and beryllium were produced. A few million years after BBN, the first stars were formed out of this primordial material. Important questions about star formation, galactic evolution, and the yields of the first supernovae can be answered from the study of these first stars and their descendants. The most chemically...

27. ESPRESSO observations of very metal poor stars

Paolo Molaro (IFPU/ INAF OATs)

18/05/2023, 11:30

24. Tracing Pop~III supernovae with extreme energies

Asa Skuladottir (University of Florence)

18/05/2023, 12:00

The Sculptor dwarf spheroidal galaxy is old and metal-poor, making it ideal to study the earliest chemical enrichment in the Local Group. We followed up the most metal-poor star known in this (or any external) galaxy, AS0039, with high-resolution ESO VLT/UVES spectra. Our new analysis confirmed its low metallicity, [Fe/H]=-3.90, and that it is extremely C-poor, with [C/Fe]=-0.33. This adds to...