Fig. 12.
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Radial [Fe/H] gradient with all sample clusters divided into age bins (top panel), for members with log g > 2.5 (central panel), and for cluster members with ξ < 1.8 km s−1 (bottom panel). Open clusters are sized by the number of members and only clusters with three or more members are considered. The symbols and curves are colour-coded by cluster age as in Fig. 5.
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