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Fig. 7.

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Groups of Cepheids identified by HDBSCAN in the t-SNE space (top left panel). The same groups are presented in the θ, ln r space (bottom panel), where θ is the Galactocentric azimuth and ln r the logarithm of the Galactocentric radius (corrected from the warp), and in the Galactic plane (top right panel). All the Cepheids shown in this figure are younger than 150 Myr.

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