The Spectroscopic Age of 47 Tucanae
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Authors
Gibson, Brad K
Madgwick, Darren
Jones, L
Da Costa, Gary
Norris, John
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University of Chicago Press
Abstract
High signal-to-noise ratio integrated spectra of the metal-rich globular cluster 47 Tuc, spanning the HγHR and Fe 4668 line indices, have been obtained. Jones & Worthey have suggested that the combination of these indices is the best available mechanism
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Astronomical Journal