Horizontal branch morphology and multiple stellar populations in the anomalous globular cluster M 22
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Marino, Anna
Milone, Antonino
Lind, Karin
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IOP Publishing
Abstract
M 22 is an anomalous globular cluster that hosts two groups of stars with different metallicity and s-element abundance. The star-to-star light-element variations in both groups, with the presence of individual Na-O and C-N anticorrelations, demonstrates
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Astrophysical Journal, The
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Open Access
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