Fig. E.1
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Overview of the surveys used in this work, coloured by density. From left to right: LAMOST DR10 (Cui et al. 2012; Zhao et al. 2012), LRS (purple) and MRS (orange), GALAH DR3 (De Silva et al. 2015; Buder et al. 2021) (green), GALAH DR4 (De Silva et al. 2015; Buder et al. 2025) (pink) and APOGEE DR17 (Abdurro’uf et al. 2022) (blue). Top panel: Face-on (X0,Y0) galactic maps, centred on the Sun. Bottom panel: Hertzsprung-Russell Diagrams, coloured by density. The number of stars in each sample is annotated in the bottom left panel corner. Lighter colours correspond to higher density regions.
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