Multiple stellar populations in Galactic globular clusters: observational evidence

Details Multiple stellar populations in Galactic globular clusters: observational evidence Multiple stellar populations in Galactic globular clusters: observational evidence

2010-12-06

arxiv.org/abs/1012.1227v1

Astronomy and Astrophysics

Astrophysics

Solar and Stellar Astrophysics

6 pages, 3 figures, Proceedings SF2A 2010

Scientific paper

An increasing number of both photometric and spectroscopic observations over the last years have shown the existence of distinct sub-populations in many Galactic globular clusters and shattered the paradigm of globulars hosting single, simple stellar populations. These multiple populations manifest themselves in a split of different evolutionary sequences in the cluster color-magnitude diagrams and in star-to-star abundance variations. In this paper we will summarize the observational scenario.

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