Incidence of heavy element enhancements among carbon stars

Details Incidence of heavy element enhancements among carbon stars Incidence of heavy element enhancements among carbon stars

Nov 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985pasp...97.1104d&link_type=abstract

Astronomical Society of the Pacific, Publications (ISSN 0004-6280), vol. 97, Nov. 1985, p. 1104-1111. Research supported by the

Astronomy and Astrophysics

Astronomy

44

Carbon Stars, Heavy Elements, Stellar Composition, Astronomical Catalogs, Carbon 13, Spectral Bands, Spectral Correlation, Stellar Spectra

Scientific paper

The correlation of spectral line strength with temperature subclass has been examined in a survey of 40 carbon stars at a dispersion of 15 Å mm-1. The two goals of this search were (1) to determine if additional cool N-type stars can be added to the list of N stars not having enhanced s-process elements, and (2) to confirm the anticorrelation of s-process enhancements with 13C enhancement. Among the program stars one normal carbon star was found to have no, or only minor, enhancement of heavy elements associated with the s-process. The suspicion that increased surface 13C is accompanied by weak line strengths of s-process elements is strongly confirmed.

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