Metal abundances of A-type stars in three galactic clusters.

Details Metal abundances of A-type stars in three galactic clusters. Metal abundances of A-type stars in three galactic clusters.

Jul 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997a%26a...323..901h&link_type=abstract

Astronomy and Astrophysics, v.323, p.901-908

Astronomy and Astrophysics

Astrophysics

21

Open Clusters: Individual: {Alpha Per (Alpha Per Cluster), Coma (Coma Star Cluster), Praesepe, Stars: Abundances, Chemically Peculiar

Scientific paper

Investigations have been carried out for 11 A stars in young open clusters (α Per, Coma, and Praesepe) and three field stars by means of high resolution spectroscopy. Detailed abundance analyses have been made for Mg, Ca, Sc, Cr, Fe, and Ni. The results are discussed in the framework of element stratification processes as invoked by time-dependent diffusion mechanisms in Am stars. The youngest cluster of our sample, α Per, seems to show some untypical abundance patterns which might be identified as early Am phases.

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