The Extragalactic Origin of the Arcturus Group
We reanalyze the group of stars associated kinematically with Arcturus and confirm that they constitute a peculiar grouping of metal-poor stars with similar apocentric radius, common angular momentum, and distinct metal abundance patterns. These properties are consistent with those expected for a group of stars originating from the debris of a disrupted satellite. The Arcturus group stands out clearly in the catalog of Beers et al. and in other compilations of metal-poor stars in the solar...[Show more]
|Collections||ANU Research Publications|
|Source:||Astrophysical Journal, The|
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