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- W2007139871 abstract "Violet and ultra-violet CN band strength parameters observed photo-electrically and photographically, respectively, are related by a semi-empirical method to horizontal curve-of-growth shifts predicted from model atmospheres with known basic parameters |$theta_text {eff},enspace g, [text {Fe/H}]$| , assuming that [C/Fe] = [O/Fe] = [N/Fe] = 0. Population I stars generally fit the standard relations, implying little variation in the abundances of C, N, O relative to metals, except in certain special cases in which either such variations occur or the basic parameters are in doubt (e.g. μ Leo, |$epsilon$| And). Stars with halo kinematics, on the other hand, quite often have weaker CN bands than predicted, most probably because [N/Fe] < 0, although HD 25329 and a CH star deviate in the opposite direction. Most of the halo stars may fit the relation [N/Fe] ≃ [Fe/H], which is not unexpected on the basis of current ideas on explosive nucleosynthesis, but the weakness of their CN bands leads to ambiguous results except in a few cases." @default.
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- W2007139871 date "1973-11-01" @default.
- W2007139871 modified "2023-10-16" @default.
- W2007139871 title "Stellar CN Band Strengths and the Abundance of Nitrogen" @default.
- W2007139871 doi "https://doi.org/10.1093/mnras/165.1.91" @default.
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