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Selecting Sagittarius: Identification and chemical characterization of the Sagittarius stream

Hyde, E.A.; Keller, Stefan; Zucker, Daniel; Ibata, Rodrigo A; Siebert, A; Lewis, G F; Penarrubia, J; Irwin, M. J.; Gilmore, G; Lane, R R


Wrapping around the Milky Way, the Sagittarius stream is the dominant substructure in the halo. Our statistical selection method has allowed us to identify 106 highly likely members of the Sagittarius stream. Spectroscopic analysis of metallicity and kinematics of all members provides us with a new mapping of the Sagittarius stream. We find correspondence between the velocity distribution of stream stars and those computed for a triaxial model of the Milky Way dark matter halo. The Sagittarius...[Show more]

CollectionsANU Research Publications
Date published: 2015
Type: Journal article
Source: Astrophysical Journal, The
DOI: 10.1088/0004-637X/805/2/189


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