C, N, and O abundances in some CP stars

Details C, N, and O abundances in some CP stars C, N, and O abundances in some CP stars

Jun 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992azh....69..552l&link_type=abstract

Astronomicheskii Zhurnal (ISSN 0004-6299), vol. 69, no. 3, May-June 1992, p. 552-562. In Russian.

Other

Carbon, Magnetic Stars, Nitrogen, Oxygen, Peculiar Stars, Stellar Composition, Abundance, Spectral Line Width, Stellar Atmospheres, Stellar Magnetic Fields, Temperature Distribution

Scientific paper

We present the results of C, N, and O abundance analysis in the atmospheres of 7 CP magnetic (Si) and nonmagnetic (Hg-Mn) stars. The visible lines of CII, NII, and OI were used for the analysis. The mean C and O abundances are nearly solar, with a significant dispersion from star to star, while N is overabundant in the atmospheres of all magnetic stars. This result does not agree with that of other works, where the authors obtained a deficiency of C, N, and O elements by using lines of neutral C, N, and O in the infrared. Possible reasons for such a discrepancy are discussed.

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