Abundances of light metals and NI in a sample of disc stars

Details Abundances of light metals and NI in a sample of disc stars Abundances of light metals and NI in a sample of disc stars

Nov 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988a%26a...206..100a&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 206, no. 1, Nov. 1988, p. 100-107. Research supported by the Consejo Superior

Astronomy and Astrophysics

Astrophysics

39

Galactic Evolution, Late Stars, Nickel, Stellar Composition, Iron, Metallicity, Stellar Atmospheres, Stellar Spectra

Scientific paper

High resolution, high S/N spectra obtained using RETICON and CCD detectors are used to determine the abundances of Al, Si, Ca, Ni and Fe in 23 disc stars in the metallicity range -1.2 ⪉ [Fe/H] ⪉ +0.3. The authors have found overabundances, with respect to iron for Al (≡0.4), Si (≡0.3), and Ca (≡0.2) in stars between -1.2 ⪉ [Fe/H] ⪉ -0.5. The results for Ca and Si (α-elements) are in excellent agreement with previous observational studies. The Al overabundances reported here show somewhat larger values close to [Fe/H] = -1.0 than those previously found in the literature. The abundance of Ni seems to follow that of Fe over the whole metallicity range studied.

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