Release 11.12 ("Hergest Ridge")

Gclusters :: Bibliographic item "gc554"

Article ID: gc554
AuthorMarino, A.F. et al.
TitleMetallicity Variations in the Type II Globular Cluster NGC 6934
JournalThe Astrophysical Journal, Volume 859, Issue 2, 20 pp.
Year of publication2018 (on gclusters from 2018-12-05 11:19:01 )
AbstractThe 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 (...) The observed chemical pattern resembles only partially the other Type II GCs, suggesting that NGC 6934 might belong either to a third class of GCs, or be a link between normal Type I and anomalous Type II GCs.
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TagsNGC 6934

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