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An age difference of two billion years between a metal-rich and a metal-poor globular cluster

Hansen, B M S; Kalirai, Jason S; Anderson, Jay; Dotter, Aaron; Richer, Harvey B; Rich, R M; Shara, Michael M; Fahlman, Gregory G; Hurley, Jarrod; King, I R; Reitzel, D; Stetson, Peter B


Globular clusters trace the formation history of the spheroidal components of our Galaxy and other galaxies, which represent the bulk of star formation over the history of the Universe. The clusters exhibit a range of metallicities (abundances of elements

CollectionsANU Research Publications
Date published: 2013
Type: Journal article
Source: Nature
DOI: 10.1038/nature12334


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