Chemical Evolution of the Orion Association. IV. The Oxygen and Iron Abundances of F and G Stars

Details Chemical Evolution of the Orion Association. IV. The Oxygen and Iron Abundances of F and G Stars Chemical Evolution of the Orion Association. IV. The Oxygen and Iron Abundances of F and G Stars

Jan 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998apj...493..195c&link_type=abstract

Astrophysical Journal v.493, p.195

Astronomy and Astrophysics

Astronomy

41

Galaxy: Open Clusters And Associations: Individual Name: Orion Association, Stars: Abundances, Stars: Pre-Main-Sequence

Scientific paper

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.

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