On the evolutionary status of MU Leonis.
Abstract
The paper presents the abundances of carbon, nitrogen, and oxygen and the carbon and oxygen isotopic ratios measured in the CN-strong giant star Mu Leo from CO and CN lines derived from a new 2-2.5 spectrum and published equivalent widths of C2 and forbidden O I lines. The relative abundances of C-12, N-14, and O-16 and the C-12/C-13 ratio suggest that Mu Leonis has undergone the first red-giant dredge-up. The CNO abundances suggest that Mu Leo is probably a metal-rich red giant that has experienced the first dredge-up.
- Publication:
-
Publications of the Astronomical Society of the Pacific
- Pub Date:
- September 1987
- DOI:
- 10.1086/132068
- Bibcode:
- 1987PASP...99.1003H
- Keywords:
-
- Abundance;
- Carbon Monoxide;
- Cn Emission;
- Metallic Stars;
- Red Giant Stars;
- Atmospheric Models;
- Computational Astrophysics;
- Giant Stars;
- High Resolution;
- Astrophysics