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.
Original language | English (US) |
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Pages (from-to) | 195-205 |
Number of pages | 11 |
Journal | Astrophysical Journal |
Volume | 493 |
Issue number | 1 PART I |
DOIs | |
State | Published - 1998 |
Externally published | Yes |
Keywords
- Abundances
- Individual (Orion association)
- Open clusters and associations
- Stars
- pre-main-sequence
ASJC Scopus subject areas
- Astronomy and Astrophysics
- Space and Planetary Science