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Paper: Reality of Moving Groups in the Galaxy and Chemically Tagging the Galactic Disk
Volume: 396, Formation and Evolution of Galaxy Disks
Page: 59
Authors: De Silva, G.M.; Freeman, K.C.; Bland-Hawthorn, J.; Asplund, M.
Abstract: The existence of old dispersed stellar groups within the Milky Way disk is still controversial. Are they the debris of ancient star-forming aggregates, or short-lived artifacts of dynamical origin? With detailed elemental abundance measurements from high quality spectroscopic data, we show that at least one such old dispersed stellar group is a true relic of an earlier phase of star formation. The identification of other such relic structures will provide essential information for probing the evolutionary history of the Milky Way disk.
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