Thom, Christopher; Flynn, Chris; Bessell, Michael; Hanninen, Jyrki; Beers, Timothy C; Christlieb, Norbert; James, Dionne; Holmberg, Johan; Gibson, Bradley K
Large samples of field horizontal branch (FHB) stars make excellent tracers of the Galactic halo; by studying their kinematics, one can infer important physical properties of our Galaxy. Here we present the results of a medium-resolution spectroscopic survey of 530 FHB stars selected from the Hamburg/ESO survey. The stars have a mean distance of ∼7 kpc and thus probe the inner parts of the Milky Way halo. We measure radial velocities from the spectra in order to test the model of Sommer-Larsen...[Show more]
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