Chemical Evolution of the Orion Association. IV. The Oxygen and Iron Abundances of F and G Stars
Open Access
- 20 January 1998
- journal article
- research article
- Published by American Astronomical Society in The Astrophysical Journal
- Vol. 493 (1) , 195-205
- https://doi.org/10.1086/305118
Abstract
Oxygen and iron abundances are derived for a sample of pre-main-sequence F and G stars of the Orion association. Results for association members are compared with results published previously for main-sequence B stars in the association. The abundances reveal that the F and G stars exhibit the pattern of abundances shown by the main-sequence B stars: the stars have a single iron abundance, but there is a star-to-star variation of oxygen abundance. Oxygen-rich and oxygen-poor stars are roughly segregated on the sky.Keywords
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