Statistics
Scientific paper
Jan 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988pasp..100...73r&link_type=abstract
Astronomical Society of the Pacific, Publications (ISSN 0004-6280), vol. 100, Jan. 1988, p. 73-81. NSERC-supported research.
Statistics
2
F Stars, Line Spectra, Peculiar Stars, Statistical Analysis, Stellar Composition, Wavelengths, A Stars, B Stars, Main Sequence Stars, Rare Earth Elements, Stellar Evolution, Stellar Spectrophotometry
Scientific paper
A survey technique for indicating the potential existence of abundance anomalies in stars with many thousands of lines has been developed using wavelength-coincident-statistics and automated spectrum-line position measuring. The technique has been tested against estimates of Fe abundances in the F stars. It was applied to a group of F stars to search for the possible anomalies in abundance in various metal and rare-earth species that would indicate an extension into the F stars of the CP phenomenon that is commonly observed in the A and B stars. A tentative conclusion is drawn that the evolved star 41 Cyg and the main-sequence star 17 Psc might show rare-earth excesses, with those in 41 Cyg being substantial. Furthermore, the main-sequence stars 12 And and HR 7756 may exhibit rare-earth deficiencies.
Hill Graham
Rice John B.
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