An Observational Perspective on Some Aspects of Early Stellar Nucleosynthesis

Abstract

Abstract. Some basic abundance results for low metallicity stars that were formed in the early days of the Milky Way Galaxy are summarized. Discussion is centered on two nucleosynthetic groups: the light a elements (Mg, Si, and Ca), and the neutroncapture elements (those heavier than the Fe group, atomic numbers greater than 30). Emphasis is placed on the present state of stellar spectroscopic and atomic transition data.Keywords: stellar abundances, low metallicity stars, nucleosynthesis PACS: 26.30.+k,95.30,95.75,95.85.Kr,95.85.Ls,97