Fig. 4.

Same as Fig. 3, but using the Gaia DR2 motions from Gaia Collaboration (2018b). The yellow lines now correspond to the centroid of the motion by Gaia Collaboration (2018b), but the offsets of the RGB-Mint and RGB-a from the RGB-MP are the same as in Fig. 3. It is evident that the three populations have compatible mean proper motions.
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