The globular star clusters ω Centauri and M 22 are thought to be the remaining cores of disrupted dwarf galaxies, but they are viewed as exceptional. Here, calcium abundances for seven globular clusters are reported and compared to ω Centauri. The results lead the authors to conclude that these globular clusters are also probably the relics of more massive primeval dwarf galaxies that merged and disrupted to form the proto-Galaxy.
- Jae-Woo Lee
- Young-Woon Kang
- Young-Wook Lee
