Li and CNO abundances in the atmospheres of nine peculiar giants

Details Li and CNO abundances in the atmospheres of nine peculiar giants Li and CNO abundances in the atmospheres of nine peculiar giants

Sep 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997astl...23..609m&link_type=abstract

Astronomy Letters, Volume 23, Issue 5, September 1997, pp.609-614; Pis'ma v Astronomicheskii Zhurnal, Vol. 23, p. 693

Astronomy and Astrophysics

Astronomy

5

Scientific paper

High-resolution echelle spectra that were obtained with the 1-m Special Astrophysical Observatory telescope (Russian Academy of Sciences) are used to determine the abundances of Li and CNO in the atmospheres of nine peculiar giants (eight CN-strong stars and the SMR star 31 Aql) by the method of model atmospheres. The derived Li and CNO abundances relative to the iron abundance are close to the mean values for disk G-K giants and suggest that the stars under consideration have gone through the mixing phase (the first dredge-up). For the CN-strong stars, the C/O ratios imply a slight carbon overabundance in their atmospheres, but it is unlikely to be evidence for the hypothesis of Keenan and Heck (1994) that the CN-strong stars could be marginal R stars.

Affiliated with

Also associated with

No associations

Rating

Li and CNO abundances in the atmospheres of nine peculiar giants 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 Li and CNO abundances in the atmospheres of nine peculiar giants, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Li and CNO abundances in the atmospheres of nine peculiar giants will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1225022