An abundance analysis of the Hyades giant Gamma Tauri - an exercise in caution

Details An abundance analysis of the Hyades giant Gamma Tauri - an exercise in caution An abundance analysis of the Hyades giant Gamma Tauri - an exercise in caution

Apr 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989a%26a...214..249g&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 214, no. 1-2, April 1989, p. 249-257. Research supported by SERC, Saint John's

Astronomy and Astrophysics

Astrophysics

33

Abundance, Giant Stars, Star Clusters, Stellar Atmospheres, Metallicity, Photosphere, Stellar Luminosity, Stellar Mass, Variable Stars

Scientific paper

A model-atmosphere analysis is used to derive chemical abundances in the Hyades giant Gamma Tau relative to the standard K0 giant Beta Gem. An appraisal of the various factors which can influence this type of investigation leads to the disappointing conclusion that the many uncertainties are probably at least as great as the reported enrichment of elements in the Hyades dwarfs; the smallest uncertainty appears to be associated with the analysis of Fe I lines, which indicate an enhancement of Fe in Gamma Tau, relative to Beta Gem, of 0.04 dex, or (with greater uncertainty) a deficiency of 0.06 dex relative to the sun.

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