The spectrum of Canopus. III - Abundances of r- and s-process elements

Details The spectrum of Canopus. III - Abundances of r- and s-process elements The spectrum of Canopus. III - Abundances of r- and s-process elements

Dec 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988mnras.235.1423r&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 235, Dec. 15, 1988, p. 1423-1438.

Astronomy and Astrophysics

Astronomy

11

Abundance, Radioactive Decay, Stellar Composition, Stellar Spectra, Supergiant Stars, Line Spectra, Molybdenum, Near Ultraviolet Radiation, Niobium, Random Errors, Spectrum Analysis, Ultraviolet Spectra

Scientific paper

A careful search has been made for lines of elements heavier than the iron peak in the spectrum of Canopus, mainly using high signal-to-noise spectra in the near ultraviolet. The abundances of 21 heavy r- and s-process elements in Canopus have been determined from the equivalent widths of the lines identified. The results show that Canopus has an essentially solar composition for both r- and s-process heavy elements. Only for molybdenum and possibly niobium were deficiencies relative to the solar abundances found which are larger than can be explained by the estimated random errors of this analysis.

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