Fig. 4.
t-SNE representations of the chrono-chemo-kinematics space spanned by the Delgado Mena et al. (2017) sample. Each column represents a combination of input information (only [X/Fe], [X/Fe] + [Fe/H], [X/Fe] + [Fe/H] + age, and [X/Fe] + [Fe/H] + age + space velocities, respectively), while each row corresponds to a particular perplexity value, as indicated on the right side of the figure. The panel highlighted in yellow represents the results that we analyse in detail in this paper by defining chemical sub-populations based on this map.
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