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Effects of the variation of fundamental constants on Pop III stellar evolution
Sylvia Ekstrom, Alain Coc, Pierre Descouvemont +4
A variation of the fundamental constants is expected to affect the thermonuclear rates important for stellar nucleosynthesis. In particular, because of the very small resonant ener…
Nucleosynthesis in Rotating massive stars and Abundances in the Early Galaxy
Georges Meynet, Raphael Hirschi, Sylvia Ekstrom +4
We discuss three effects of axial rotation at low metallicity. The first one is the mixing of the chemical species which is predicted to be more efficient in low metallicity enviro…
Evolution of Massive Stars along the Cosmic History
Georges Meynet, Sylvia Ekstrom, Cyril Georgy +2
Massive stars are "cosmic engines" (cf the title of the IAU Symposium 250). They drive the photometric and chemical evolution of galaxies, inject energy and momentum through stella…