Astrophysics and Space Science

, Volume 265, Issue 1–4, pp 171–174 | Cite as

Oxygen Abundances in Solar-Type Stars

  • Johannes Reetz


The absolute solar oxygen abundance,ε ⊙ = 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 coefficientsfor the NLTE model of OI.Using effective temperatures derived from Balmer lines, oxygen abundances from O 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(Teff ≥ 5800) with [Fe/H] ≥ −0.5.


Equivalent Width Solar Neighborhood Oxygen Abundance Collision Strength Abundance Gradient 
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Copyright information

© Kluwer Academic Publishers 1999

Authors and Affiliations

  • Johannes Reetz
    • 1
  1. 1.Universitäts-Sternwarte MünchenMünchenGermany

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