Observational Constraints on First-Star Nucleosynthesis. I. Evidence for Multiple Progenitors of CEMP-no Stars

Jinmi Yoon, Timothy C. Beers, Vinicius M. Placco +6

We investigate anew the distribution of absolute carbon abundance, $A$(C) $=\log \epsilon$(C), for carbon-enhanced metal-poor (CEMP) stars in the halo of the Milky Way, based on high-re…