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Sodium-oxygen anticorrelation and neutron-capture elements in Omega Centauri stellar populations

Marino, Anna; Milone, Antonino; Piotto, G; Villanova, S; Gratton, Raffaele G.; D'Antona, Francesca; Anderson, Jay; Bedin, L R; Bellini, A; Cassisi, S; Geisler, D; Renzini, Alvio; Zoccali, M

Description

Omega Centauri is no longer the only globular cluster known to contain multiple stellar populations, yet it remains the most puzzling. Due to the extreme way in which the multiple stellar population phenomenon manifests in this cluster, it has been suggested that it may be the remnant of a larger stellar system. In this work, we present a spectroscopic investigation of the stellar populations hosted in the globular cluster ω Centauri to shed light on its still puzzling chemical enrichment...[Show more]

CollectionsANU Research Publications
Date published: 2011
Type: Journal article
URI: http://hdl.handle.net/1885/78592
Source: Astrophysical Journal, The
DOI: 10.1088/0004-637X/731/1/64

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