The Evolution of Copper in the Globular Cluster ω Centauri
The Evolution of Copper in the Globular Cluster ω Centauri
Copper abundances are presented for 40 red-giant stars in Omega Cen as well as 15 red-giant members of the globular clusters NGC288, NGC362, NGC3201, NGC6752, and M4. A comparison with the halo field star pattern indicates that, unlike the field stars, Omega Cen displays a constant ratio of [Cu/Fe] -0.5 …