3 papers
astro-ph.SR2026
Wolf-Rayet stellar evolution models with improved treatment of the atmosphere
Thomas Voje, Ana Palacios, Fabrice Martins
Evolutionary models of massive stars are quasi-exclusively computed using an Eddington gray atmosphere. This approximation does not accurately describe the complex physical phenome…
astro-ph.GA2026
Signatures of Very Massive Stars in the Epoch of Reionization
Rui Marques-Chaves, Fabrice Martins, Daniel Schaerer +2
We present ultra-deep ( hours), rest-frame UV spectroscopy with NIRSpec/JWST of two UV-bright galaxies at , CEERS-1019 and CEERS-1025 ($Z_{\rm neb} \simeq…
astro-ph.SR2015
New determination of abundances and stellar parameters for a set of weak G-band stars
A. Palacios, G. Jasniewicz, T. Masseron +3
Weak G-band (wGb) stars are very peculiar red giants almost devoided of carbon and often mildly enriched in lithium. Despite their very puzzling abundance patterns, very few detail…