Fig. 13.
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First panel: separation amplitude ξ. Second panel: error on the separation amplitude. Third panel: mean longitudinal proper-motion difference between metal-rich and metal-poor stars at a distance of ∼8 kpc, δμℓ*. Fourth panel: error on the δμℓ* metric. All the plots are shown as a function of Galactic coordinates, and the angular bins have sizes of 0.5° ×0.5°.
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