Fig. 4.
Top panel: VPM diagram from Gaia DR 2 dataset for star members located within 3′ from the Patchick 99 centre. The black circle indicates the position of the cluster selection within 3 mas yr−1. Bottom panel: VPM diagram for field stars located at 4.8′ from the Patchick 99 centre. In each panel, colour represents density, with magenta being the highest, followed by blue, green, and red.
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