Paper:	Meet the COG’s
Volume:	392, Hot Subdwarf Stars and Related Objects
Page:	151
Authors:	Altmann, M.; Catelan, M.; Zoccali, M.
Abstract:	Kinematics combined with detailed element abundances provide a method of analysis of stellar populations that uses as much available information as possible, in contrast to other methods. Here we employ this technique on local A-type horizontal branch stars in an ongoing programme to search for ω Centauri debris among these objects. This led us to discover another group of stars with very similar kinematics and abundances, the Cometary Orbit Group (COG). We also comment on the future of this kind of undertaking in the Gaia era.

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