Kim, Dongwon; Jerjen, Helmut; Milone, Antonino P.; Mackey, Dougal; Costa, Gary S. Da
We report the discovery of a new, low-luminosity star cluster in the outer halo of the Milky Way. High-quality gr
photometry is presented, from which a color–magnitude diagram is constructed, and estimates of age, [Fe/H],
[α/Fe], and distance are derived. The star cluster, which we designate as Kim 2, lies at a heliocentric distance of
∼105 kpc. With a half-light radius of ∼12.8 pc and ellipticity of ϵ ∼ 0.12, it shares the properties of outer halo
globular clusters, except for at higher...[Show more]
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