Syntheses performed with SME and ULB considering α-enhanced and solar-scaled composition. The syntheses were performed without line absorption, and show how the continuum fluxes change when α-enhancement is taken into account or not. The Sun has been excluded from this figure as, by definition, it has zero α-enhancement and the syntheses are identical. The bluest and the reddest line regions analysed in this work were chosen for this illustration. The difference of the fluxes (solar-scaled – α-enhanced) in percent are shown at the bottom of each panel. The syntheses with α-enhancement are plotted with continuous lines while the syntheses with solar-scaled abundances with dotted lines. The syntheses computed with SME are plotted with red colour, while the syntheses computed with ULB (Turbospectrum) are plotted with blue colour.
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