On the evolutionary status of MU Leonis

Details On the evolutionary status of MU Leonis On the evolutionary status of MU Leonis

Sep 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987pasp...99.1003h&link_type=abstract

Astronomical Society of the Pacific, Publications (ISSN 0004-6280), vol. 99, Sept. 1987, p. 1003-1008. Research supported by the

Statistics

Computation

11

Abundance, Carbon Monoxide, Cn Emission, Metallic Stars, Red Giant Stars, Atmospheric Models, Computational Astrophysics, Giant Stars, High Resolution

Scientific paper

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.

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