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Table 3

Line selection and final chemical abundances.

Line selection
Element λ(nm) Elow (eV) log gf
Fe I 491.899 2.865 –0.342
Mg I 571.109 4.346 –1.724

Chemical abundances

Star Element [X/Fe] Nlines
6760361266479328000 Mg I –0.82 ± 0.09 1
6760381500040022528 Ca I –0.61 ± 0.15 7

Solar abundances

Star Element A(X) Nlines
Sun Mg I 7.53 ± 0.03 1
Sun Ca I 6.36 ± 0.06 7

Notes. Example of two rows from the tables with atomic and final chemical abundances. The full table is available at the CDS. Top: Atomic lines used for deriving the abundance ratios presented in this work. Their logarithm values of the oscillator strength (log g f) and excitation potentials (Elow) are sourced from the atomic database presented in the study by Heiter et al. (2021). Middle: Final results from the averaged line-by-line abundances, along with the corresponding uncertainties and the number of lines used for each element. Bottom: Derived absolute solar abundances used in this work to calculate the final bracket abundance ratios,[ XY ]\[\left[ {\frac{{\rm{X}}}{{\rm{Y}}}} \right]\]abundance ratios.

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