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Evolution towards the critical limit and the origin of Be stars
S. Ekström, G. Meynet, A. Maeder +1
We determine which are the mechanisms accelerating the surface of single stars during the Main Sequence evolution. We have computed 112 stellar models of four different initial mas…
SPINSTARS at low metallicities
G. Meynet, S. Ekstrom, A. Maeder +3
The main effect of axial rotation on the evolution of massive PopIII stars is to trigger internal mixing processes which allow stars to produce significant amounts of primary nitro…
Mass loss and very low-metallicity stars
Raphael Hirschi, Cristina Chiappini, Georges Meynet +2
Mass loss plays a dominant role in the evolution of massive stars at solar metallicity. After discussing different mass loss mechanisms and their metallicity dependence, we present…
Can very massive stars avoid Pair-instability Supernovae?
S. Ekström, G. Meynet, A. Maeder
Very massive primordial stars () are supposed to end their lives as pair-instability supernovae. Such an event can be traced by a typical chemica…