Abundance determinations of field horizontal-branch stars

Details Abundance determinations of field horizontal-branch stars Abundance determinations of field horizontal-branch stars

Dec 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981aj.....86.1909d&link_type=abstract

Astronomical Journal, vol. 86, Dec. 1981, p. 1909-1915. Research supported by the University of North Carolina

Astronomy and Astrophysics

Astronomy

16

A Stars, Abundance, Atmospheric Composition, Horizontal Branch Stars, Stellar Atmospheres, Metals, Stellar Models, Stellar Spectrophotometry, Stellar Temperature

Scientific paper

The WIDTH6 atmosphere code of Kurucz (1979) is used to rederive atmospheric metal abundances for five A-type field horizontal-branch stars. Fe/H values for HD 2857 and HD 60778 are found to be -1.8 and -0.5 + or - 0.3, respectively, and the Fe/H abundances rederived from previously published equivalent widths for the cases of HD 86986, 109995, and 161817 are respectively -1.0, -0.5, and -1.0. No evidence is found for an s-process elements overdeficiency for the most metal-poor stars, nor for an Al/Fe dependence on the Fe/H ratio.

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