Astronomy and Astrophysics – Astrophysics
Scientific paper
Mar 1999
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999a%26a...343..261h&link_type=abstract
Astronomy and Astrophysics, v.343, p.261-265 (1999)
Astronomy and Astrophysics
Astrophysics
4
Stars: Abundances, Stars: Chemically Peculiar, Galaxy: Open Clusters And Associations: Individual:
Scientific paper
We complete our study (Hui-Bon-Hoa et al. 1997) of the abundances of Mg, Ca, Sc, Cr, Fe, and Ni in alpha Per cluster stars using new spectra of two stars of the previous sample and also adding two more objects. The new spectra of BD +48°894 and HD 21527 show that the former has an almost solar composition whereas the latter is an Am star with the iron peak elements being all enhanced and Ca marginally underabundant. As for the additional stars of this study, HD 19954 has a pattern very close to solar, and HD 20135 is an SB2 system where both components seem to be Am stars: Ca and Sc are strongly deficient; Cr and Ni are overabundant in one component. A more thorough study is needed for confirmation. Based on observations collected at the Observatoire de Haute-Provence (France)
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