Fig. 11

Iron results using our new IRFM temperatures. All RGB stars (dots) and AGB stars (triangles) are shown for comparison, with iron abundances derived using Fe i and Fe ii highlighted by colour (red and black respectively). The shaded region indicates a typical uncertainty of ~ ± 0.10 dex, centered around the average Fe ii abundance (log ϵ = 6.02, from RGB and AGB stars).
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