Carbon and nitrogen abundances in early B-stars. I. NLTE calculations for a sample of stars with small V sin i values

Details Carbon and nitrogen abundances in early B-stars. I. NLTE calculations for a sample of stars with small V sin i values Carbon and nitrogen abundances in early B-stars. I. NLTE calculations for a sample of stars with small V sin i values

Oct 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999a%26a...350..598a&link_type=abstract

Astronomy and Astrophysics, v.350, p.598-602 (1999)

Astronomy and Astrophysics

Astrophysics

18

Stars: Abundances, Stars: Atmospheres, Stars: Early-Type

Scientific paper

Abundances of carbon and nitrogen in a sample of hot main sequence stars were determined in the NLTE approximation. All calculations were based on Kurucz atmosphere models. Atmospheric parameters for the program stars have been determined using spectroscopic and photometric methods. In most cases the derived atmospheric abundances appear to be subsolar and probably unaltered by stellar evolution. This is in agreement with the general conclusions on C and N abundances for B main sequence stars reached by other investigators. Based on the spectra collected with the 1.52-m telescope of Haute Provence Observatoire

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