Other
Scientific paper
May 1987
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987pasp...99..335c&link_type=abstract
Astronomical Society of the Pacific, Publications (ISSN 0004-6280), vol. 99, May 1987, p. 335-368. Research supported by Lick Ob
Other
139
Abundance, Carbon, Nitrogen, Solar Neighborhood, Spectrum Analysis, Subdwarf Stars, Binary Stars, Nuclear Fusion, Stellar Atmospheres, Stellar Models, Stellar Spectrophotometry, Subgiant Stars
Scientific paper
The authors have analyzed spectra of 83 subdwarfs for C, N, and Fe abundances. They deduced [C/Fe] from the CH bands (λ ≡ 4300 Å), [N/Fe] from the NH bands (λ ≡ 3360 Å), and [Fe/H] from strong mostly Fe I features (3400 Å ≤ λ ≤3550 Å). They find excellent agreement between the [Fe/H] values and the results obtained by other investigators based on high-resolution spectra. They find [C/Fe] to be essentially constant, with a scatter of σ ≡ 0.18 dex, over the range -0.75 ≥ [Fe/H] > -2.5, confirming that C is a primary nucleosynthetic species in this metallicity domain. It is found that the behavior of <[N/Fe]> as [Fe/H] declines is compatible with the assumption of a primary, as opposed to a secondary, origin of N, but the limiting value of <[N/Fe]> is found to be several tenths dex smaller than in previous investigations.
Barbuy Beatrice
Carbon Duane F.
Friel Eileen D.
Kraft Robert P.
Suntzeff Nicholas B.
No associations
LandOfFree
Carbon and nitrogen abundances in metal-poor dwarfs of the solar neighborhood does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Carbon and nitrogen abundances in metal-poor dwarfs of the solar neighborhood, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Carbon and nitrogen abundances in metal-poor dwarfs of the solar neighborhood will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-859874