Nitrogen abundances in disk and halo dwarfs
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.
KeywordsDissociation Energy Atomic Line Synthetic Spectrum Carbon Abundance Program Star
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