Discovery of a faint outer halo Milky Way star cluster in the southern sky
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Kim, Dongwon; Jerjen, Helmut; Milone, Antonino P.; Mackey, Dougal; Costa, Gary S. Da
Description
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 |
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Date published: | 2015-04-20 |
Type: | Journal article |
URI: | http://hdl.handle.net/1885/15275 |
Source: | The Astrophysical Journal |
DOI: | 10.1088/0004-637X/803/2/63 |
Access Rights: | Open Access |
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Kim et al Discovery of a faint 2015.pdf | 4.14 MB | Adobe PDF |
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