CNO overabundances in six stars of Omega Centauri

Details CNO overabundances in six stars of Omega Centauri CNO overabundances in six stars of Omega Centauri

Aug 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992a%26a...261..551m&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 261, no. 2, p. 551-557.

Astronomy and Astrophysics

Astrophysics

16

Abundance, Cyano Compounds, Globular Clusters, Stellar Composition, Carbon, Error Analysis, Nitrogen, Stellar Mass, Stellar Spectra

Scientific paper

C2 and CN lines at bandheads in the wavelength region 550-680 nm are synthesized for six stars of Omega Centauri in order to derive their carbon and nitrogen abundances. Oxygen abundances are also derived taking into account the molecular associations with C and N compounded molecules, using the appropriate C and N abundances. These determinations have been made for CO-rich and CO-normal stars according to the CO indices measured by Persson et al. (1980). Possible correlations between Al and N, and C and O abundances, as well as the abundances of three rare earth elements are discussed.

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