Abstract
High-resolution Digicon spectra of the NH band at 3360 Å have been analyzed by spectrum synthesis to determine nitrogen abundances in 14 disk and halo F and G dwarfs with metal deficiencies covering the range −2.3 ≤ [Fe/H] ≤ −0.3. We have determined carbon abundances from parallel observations and analysis of CH. In all stars nitrogen closely follows carbon and iron; i.e. [N/C] = 0.0. We conclude that nitrogen is a primary element.
References
Tomkin, J., and Lambert, D. L. 1984, Ap. J. (April 1), in press.
Tull, R. G., Choisser, J. P., and Snow, E. H. 1975, Appl. Optics, 14, 1182.
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© 1984 Springer-Verlag
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Tomkin, J., Lambert, D.L. (1984). Nitrogen abundances in disk and halo dwarfs. In: Baliunas, S.L., Hartmann, L. (eds) Cool Stars, Stellar Systems, and the Sun. Lecture Notes in Physics, vol 193. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-12907-3_206
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DOI: https://doi.org/10.1007/3-540-12907-3_206
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