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Chemical abundances of multiple stellar populations in massive globular clusters

Published online by Cambridge University Press:  31 March 2017

Anna F. Marino
Anna F. Marino*
Affiliation:
Research School of Astronomy & Astrophysics, Australian National University, Mt Stromlo Observatory, via Cotter Rd, Weston, ACT 2611, Australia email: [email protected]
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Abstract

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Multiple stellar populations in the Milky Way globular clusters manifest themselves with a large variety. Although chemical abundance variations in light elements, including He, are ubiquitous, the amount of these variations is different in different globulars. Stellar populations with distinct Fe, C+N+O and slow-neutron capture elements have been now detected in some globular clusters, whose number will likely increase. All these chemical features correspond to specific photometric patterns. I review the chemical+photometric features of the multiple stellar populations in globular clusters and discuss how the interpretation of data is being more and more challenging. Very excitingly, the origin and evolution of globular clusters is being a complex puzzle to compose.

Keywords

stars: abundancesstars: Population IIglobular clusters: generalglobular clusters: individual (M 4, M 22, NGC 5286, M 2, Omega Centauri)
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 12 , Symposium S316: Formation, evolution, and survival of massive star clusters , August 2015 , pp. 267 - 274
Copyright
Copyright © International Astronomical Union 2017 

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