Observations of multiple populations in star clusters

2008/10/01 by G. Piotto · 1 citation
Physics and Astronomy · #Stellar, planetary, and galactic studies #Astrophysics and Star Formation Studies #Astronomy and Astrophysical Research

paper · pdf · doi:10.1017/s1743921309031883

openalex publication_date 2008/10/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/04

Abstract

Abstract An increasing number of photometric observations of multiple stellar populations in Galactic globular clusters is seriously challenging the paradigm of GCs hosting single, simple stellar populations. These multiple populations manifest themselves in a split of different evolutionary sequences as observed in the cluster color-magnitude diagrams. Multiple stellar populations have been identified in Galactic and Magellanic Cloud clusters. In this paper we will summarize the observational scenario.

Citations

• A Triple Main Sequence in the Globular Cluster NGC 2808
• THE NUCLEUS OF THE SAGITTARIUS DSPH GALAXY AND M54: A WINDOW ON THE PROCESS OF GALAXY NUCLEATION
• The Origin of the Double Main Sequence in ω Centauri: Helium Enrichment due to Gas Fueling from Its Ancient Host Galaxy?
• Metallicities on the Double Main Sequence of ω Centauri Imply Large Helium Enhancement
• The Early Evolution of Globular Clusters: The Case of NGC 2808
• Abundance Variations within Globular Clusters

Cited by

• Globular cluster [wikipedia]