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Paper: Integrated Spectroscopy of Galactic Globular Clusters: Near--IR Indexes as Metallicity Indicators
Volume: 92, Formation of the Galactic Halo. . . . Inside and Out
Page: 285
Authors: Origlia, L.; Ferraro, F. R.; Fusi Pecci, F.; Oliva, E.
Abstract: We present integrated spectroscopy of a sample of Galactic globular clusters, centered on SiI (1.59 microns ) and CO (1.62 and 2.29 microns ) near-IR stellar features. A good correlation between the selected indexes and the cluster metallicity was found. By means of synthetic stellar spectra we also derived some information on the Si and C abundances and their relation with the cluster metal content.
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