Chemical analysis of very metal-poor turn-off stars from SDSS-DR12
Context. The most metal-poor stars are the relics of the early chemical evolution of the Galaxy. Their chemical composition is an important tool to constrain the nucleosynthesis in the first generation of stars. The aim is to observe a sample of extremely metal-poor star (EMP stars) candidates selected from the Sloan Digital Sky Survey Data Release
François, P. et al.
Fecha de publicación:
10
2018