The chemical composition of two K4-type giants, HD 14872 and HD 209960

Details The chemical composition of two K4-type giants, HD 14872 and HD 209960 The chemical composition of two K4-type giants, HD 14872 and HD 209960

Oct 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991a%26a...250..451k&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 250, no. 2, Oct. 1991, p. 451-458.

Astronomy and Astrophysics

Astrophysics

Chemical Composition, Giant Stars, K Stars, Stellar Atmospheres, Stellar Gravitation, Spectrum Analysis, Stellar Composition, Stellar Temperature

Scientific paper

The physical properties, i.e., effective temperatures and surface gravities, as well as elemental abundances and microturbulent velocities of two K4-type giants, namely, HD 14872 (65 Andromedae) and HD 209960 (20 Cephei), are investigated both by a differential curve growth method relative to Alpha Bootis (Acturus) and by synthetic spectrum analysis. The observational material and reduction method are described. The effective temperatures of the analyzed stars are presented. The differential COG method and synthetic spectrum analysis are described, and elemental abundances are discussed, drawing on the solar abundances quoted by Thevenin (1989). Graphs and tables illustrating the giants' elemental abundances are presented.

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