Discovery of a faint outer halo Milky Way star cluster in the southern sky
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]
|Collections||ANU Research Publications|
|Source:||The Astrophysical Journal|
|Kim et al Discovery of a faint 2015.pdf||4.14 MB||Adobe PDF|
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