50 citations · 193 across the 12 of their papers we have counts for
4 papers · 1 filter
Signatures of Rapidly Rotating Stars with Chemically Homogeneous Evolution in the First Galaxies
Boyuan Liu, Yves Sibony, Georges Meynet +1
The James Webb Space Telescope (JWST) has revealed an unexpectedly high abundance of UV luminous galaxies at redshifts , challenging `standard' galaxy formation models…
Grids of stellar models with rotation VIII: Models from 1.7 to 500 at metallicity
Yves Sibony, Kendall G. Shepherd, Norhasliza Yusof +12
Grids of stellar evolution models with rotation using the Geneva stellar evolution code (Genec) have been published for a wide range of metallicities. We introduce the last remaini…
Fast-rotating massive Population~III stars as possible sources of extreme N-enrichment in high-redshift galaxies
Devesh Nandal, Yves Sibony, Sophie Tsiatsiou
We present an analysis of the chemical compositions in high-redshift galaxies, with a focus on the nitrogen-enhanced galaxies GN-z11 and CEERS-1019. We use stellar models of massiv…
Rapidly rotating Population III stellar models as a source of primary nitrogen
Sophie Tsiatsiou, Yves Sibony, Devesh Nandal +12
The first stars might have been fast rotators. This would have important consequences for their radiative, mechanical and chemical feedback. We discuss the impact of fast initial r…