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Detailed chemical composition of stars is of prime interest for a range oftopics in modern stellar astrophysics, such as the chemical evolution of theGalaxy or the formation, composition, and structure of exoplanets. In thiswork, we derive the C and O abundances and update Sc, V, Mn, and Co abundancesconsidering hyperfine structure effects (HFS) and correcting for non-localthermodynamical equilibrium (NLTE) for a sample of 196 late-F, G-, and early-Kstars with wide resolved M-dwarf companions. We accomplished this by employingthe equivalent width (EW) method and high-resolution spectroscopic data.Furthermore, we investigated the distributions of [X/Fe] ratios and [C/O] as afunction of metallicity ([Fe/H]) and kinematic population. The observed trendsare consistent with previous findings reported in the literature. Additionally,we searched for confirmed exoplanets around our primary stars in the literatureand found 24 exoplanets in 17 systems, while none of the M-dwarf companions inour sample presented confirmed exoplanets. In conclusion, our study provideshomogeneous abundances from high-resolution spectra for a large sample of FGKprimary stars, paving the way for further research on stellar abundances of theM secondaries and exoplanetary science.

monthly notices of the royal astronomical society

Calibrating the metallicity of M dwarfs in wide physical binaries with  F-, G-, and K-primaries -- II: Carbon, oxygen, and odd-Z iron-peak abundances  of the primary stars