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CNO overabundances in 6 stars of Ω centauri

  • A. Milone (a1), B. Barbuy (a1), M. Spite (a2) and F. Spite (a2)

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C2 and CN bandheads in the wavelength region λλ 550-680 nm are synthesized for 6 stars of ω Centauri, in order to derive their carbon and nitrogen abundances. Oxygen abundances are also derived taking into account 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).

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References

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François, P., Spite, M., Spite, F.: 1988, A&A 191, 267.
Persson, S.E., Frogel, J.A., Cohen, J.G., Aaronson, M., Mathews, K.: 1980, ApJ 235, 452.

CNO overabundances in 6 stars of Ω centauri

  • A. Milone (a1), B. Barbuy (a1), M. Spite (a2) and F. Spite (a2)

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