Abstract
The absolute solar oxygen abundance, log e⨀ = 8.80 ± 0.06, has been determined from various oxygen abundance indicators in different solar atlases, and a new method is proposed to test collision rate coefficients for the NLTE model of O i. Using effective temperatures derived from Balmer lines, oxygen abundances from O i 7773 triplets in 83 solar-type stars within the solar neighborhood spanning a metallicity range of [Fe/H] = −2.3 … + 0.4 have been determined. NLTE effects are not negligible, especially in warm stars (T eff > 5800) with [Fe/H] > −0.5.
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