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Fig. 12.
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Present-day location of LAMOST OCs on the ZGC − RGC plane. Upper panel: all LAMOST OCs, while the middle and lower panels show clusters born after the last passage of Sgr dSph (age < 500 Myr), and clusters born before the passage (age > 500 Myr), respectively. Clusters are colour-coded with their azimuthal velocity Vϕ.
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