Unsupervised clustering of seven-dimensional chemical data from Milky Way Mapper reveals ten populations in ω Centauri tracing iron-peak, alpha, CNO, and proton-capture enrichment channels, consistent with multi-phase self-enrichment and ex-situ origin.
MNRAS000, 1–24 (2026) Chemical Taxonomy of𝜔Centauri25 Figure B1.Spearman rank-correlation matrix for the same MWM DR19𝜔 𝐶𝑒𝑛sample in the [X/Fe] frame
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Chemical Taxonomy of $\omega$~Centauri: Ten Populations Reveal a Multi-Phase Enrichment History
Unsupervised clustering of seven-dimensional chemical data from Milky Way Mapper reveals ten populations in ω Centauri tracing iron-peak, alpha, CNO, and proton-capture enrichment channels, consistent with multi-phase self-enrichment and ex-situ origin.