Astronomy and Astrophysics – Astronomy
Scientific paper
Jul 1982
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982apj...258..674b&link_type=abstract
Astrophysical Journal, Part 1, vol. 258, July 15, 1982, p. 674-682. Research supported by the William and Flora Hewlett Foundat
Astronomy and Astrophysics
Astronomy
7
Abundance, Metallic Stars, Stellar Spectra, Ultraviolet Astronomy, Ultraviolet Spectra, Heavy Elements, Line Spectra, Osmium, Statistical Analysis
Scientific paper
The method of wavelength coincidence statistics (WCS) is applied to the ultraviolet spectrum of the Hg-Mn star Kappa Cnc. Methodological checks involving searches for the element Mn, Cr, and Fe yield positive results, consistent with previous spectroscopic studies of this star. A search for heavy elements (Z in the range 74-81) in the region 1960-3230 A provides weak evidence to support the identification of Os II and Hg I; no confirmation of the presence of Au or Pt is forthcoming from the investigation. By means of a differential analysis using the Os II 2367 A line, the abundance of osmium is found to be 5.5 + or - 1.0 dex. Certain implications of these results for theories designed to account for the anomalous abundances of certain elements in chemically peculiar (CP) stars are discussed briefly.
Bord Donald J.
Davidson Jon P.
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