Journal
ASTROPHYSICAL JOURNAL
Volume 568, Issue 1, Pages L23-L26Publisher
UNIV CHICAGO PRESS
DOI: 10.1086/340319
Keywords
Galaxy : formation; globular clusters : individual (NGC 5139)
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Using current observational data and simple dynamical modeling, we demonstrate that omega Cen is not special among the Galactic globular clusters in its ability to produce and retain the heavy elements dispersed in the asymptotic giant branch phase of stellar evolution. The multiple stellar populations observed in omega Cen cannot be explained if it had formed as an isolated star cluster. The formation within a progenitor galaxy of the Milky Way is more likely, although the unique properties of omega Cen still remain a mystery.
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