Carbon, nitrogen, and oxygen abundances in Procyon, Sun, and Arcturus
Abstract
Ci, Ni, and Oi permitted and forbidden lines in the near-infrared spectra of Procyon (F5 IV V), Sun (G2 V), and Arcturus (K2 IIIp) have been analyzed to determine their carbon, nitrogen, and oxygen abundances. Procyon is found to have normal abundances while Arcturus is found to have an enhanced nitrogen abundance by a factor of 1.03 dex relative to the Sun. The dependence of the derived abundances on the effective temperature and luminosity is investigated.
- Publication:
-
Astrophysics and Space Science
- Pub Date:
- June 1987
- DOI:
- 10.1007/BF00636455
- Bibcode:
- 1987Ap&SS.134...85A
- Keywords:
-
- Abundance;
- Carbon;
- Nitrogen;
- Oxygen;
- Stellar Composition;
- Sun;
- Infrared Spectra;
- Line Spectra;
- Near Infrared Radiation;
- Stellar Luminosity;
- Stellar Spectra;
- Stellar Temperature;
- Astrophysics