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Paper: A Chemical Abundance Study of three RHB and two RGB stars in NGC 6637 (M69)
Volume: 362, The Seventh Pacific Rim Conference on Stellar Astrophysics
Page: 279
Authors: Lee, J.-W.; Lopez-Morales, M.
Abstract: We present a detailed chemical abundance study of three red horizontal branch and two red giant branch stars in the metal-rich globular cluster NGC 6637 (M69). The value of [Fe/H] derived from LTE calculations is −0.77 ± 0.02 dex. We also discuss the anticorrelation between oxygen and sodium abundances in the program stars and compare the [Si/Ti] ratio of NGC 6637 with those of other globular clusters.
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