Recent work on CNO in dwarfs and subdwarfs |
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| Authors: | Robert P Kraft |
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| Institution: | (1) Lick Observatory, Board of Studies in Astronomy and Astrophysics, University of California, 95064 Santa Cruz, California, USA |
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| Abstract: | The recent results on CNO in dwarfs and subdwarfs are discussed. The value of O/Fe] ≃ 0.0 at solar abundances but gradually
increases with decreasing Fe/H]. The value of C/Fe] is constant at ≃ 0.0
−2
+1
as Fe/H] declines from + 0.5 to −2.0; for Fe/H] < − 2.0, C/Fe] increases somewhat reaching a mean value near + 0.2 or
+ 0.3 dex. All the investigations agree that N has a strong primary component. |
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| Keywords: | abundances CNO— stars dwarfs and subdwarfs |
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