Speaker
Sophie Tsiatsiou
(University of Geneva)
Description
New rotating stellar models for the first generations of massive stars will be presented. Their results on nucleosynthesis will be compared with observed composition of very iron-poor stars and with the composition recently inferred by spectroscopy in high redshift galaxies by the JWST. We shall show that both fast-rotating Population III stars and/or non-rotating very massive stars up to 10,000 solar masses can reproduce the high N/O ratios observed in high redshift galaxies. We will also show the significant contribution of rotating very metal-poor stars on fluorine enrichment. Finally, we will discuss the impact of different implementations of the physics of rotation in stars, focusing on their impact on stellar nucleosynthesis.
Primary author
Sophie Tsiatsiou
(University of Geneva)
