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A double stellar generation in the globular cluster NGC 6656 (M 22)

Marino, Anna; Milone, Antonino; Piotto, G; Villanova, S; Bedin, L R; Bellini, A; Renzini, Alvio


We present a chemical abundance analysis based on high resolution UVES spectra of seventeen bright giant stars in the Globular Cluster (GC) M 22. We obtained an average iron abundance of [Fe/H] =-1.76*± 0.02 (internal errors only) and an a enhancement of

CollectionsANU Research Publications
Date published: 2009
Type: Journal article
Source: Astronomy and Astrophysics
DOI: 10.1051/0004-6361/200911827


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