[Sc/Fe] vs. ﹩{T}_{\mathrm{eff}}﹩ for stars in the solar neighborhood (disks) and Galactic center (triangles). Notice that both populations follow approximately the same trend. This plot shows that the derived scandium abundance simply increases with lower temperatures, suggesting that the derived “abundances” are spurious, being systemically in error, perhaps due to an incomplete model of the line formation.