Digging into the mystery of the Galactic globular clusters M22 and NGC1851
We propose to collect deep near-infrared (NIR) images of two peculiar Galactic globular clusters (GGCs), NGC1851 and M22, to explore the properties of their multiple stellar populations. These GGCs display multiple sequences along the red-giant and sub-giant branches in ultraviolet-optical color-magnitude diagrams (CMDs), and spectroscopy confirmed
Calamida, Annalisa et al.
Fecha de publicación:
5
2020