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Metallicity Variations in the Type II Globular Cluster NGC 6934

Marino, Anna Fabiola; Yong, David; Milone, Antonino P.; Piotto, G.; Lundquist, M.; Bedin, L. R.; Chené, André Nicolas; Da Costa, Gary; Asplund, Martin; Jerjen, Helmut


The Hubble Space Telescope photometric survey of Galactic globular clusters (GCs) has revealed a peculiar "chromosome map" for NGC 6934. In addition to a typical sequence, similar to that observed in Type I GCs, NGC 6934 displays additional stars on the red side, analogous to the anomalous Type II GCs, as defined in our previous work. We present a chemical abundance analysis of four red giants in this GC. Two stars are located on the chromosome map sequence common to all GCs, and another two...[Show more]

CollectionsANU Research Publications
Date published: 2018-05-25
Type: Journal article
Source: The Astrophysical Journal
DOI: 10.3847/1538-4357/aabdea
Access Rights: Open Access


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