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Tracing M22’s Origins: Spatial and Chemical Constraints on Its Formation History

  • Authors: Emanuele Dondoglio, Antonino P. Milone, Randa Asa'd, Anna F. Marino, Alessandra Mastrobuono-Battisti, Fabrizio Muratore, Tuila Ziliotto, Emanuele Bortolan, Giacomo Cordoni, Maria Vittoria Legnardi, Edoardo P. Lagioia, Marco Tailo

Emanuele Dondoglio et al 2026 The Astronomical Journal 172 .

  • Provider: AAS Journals

Caption: Figure 8.

Left column: from top to bottom, [C/Fe]STD, [N/Fe]STD, [O/Fe], [Mg/Fe], and [Al/Fe] vs. [Fe/H] of anomalous stars. The brown dotted–dashed line in each plot indicates the best-fit straight line. Central and right columns: the same as left column but with [Ce/Fe] and [(C+N+O)/Fe]STD instead of [Fe/H], respectively. In each plot, we report the Spearman correlation coefficient (with the corresponding p-value between parentheses) and the slope of the best-fit line with its associated uncertainty.

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