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Chemical abundances for ten stars in the Alpha Persei open cluster

Published online by Cambridge University Press:  13 January 2006

G. Alecian ,
O. Richard ,
S. Vauclair ,
M. Gebran  and
R. Monier
M. Gebran
Affiliation:
Groupe de Recherches en Astronomie et Astrophysique du Languedoc UMR 5024, Université Montpellier II, Place E. Bataillon, 34095 Montpellier, France
R. Monier
Affiliation:
Groupe de Recherches en Astronomie et Astrophysique du Languedoc UMR 5024, Université Montpellier II, Place E. Bataillon, 34095 Montpellier, France
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Abstract

Abundances of Fe, Ti, Cr, Mg and He have been determined for 10 stars: 5 B, 3 A, 1 F dwarfs and 1 chemically peculiar giant B8IIIp with apparent velocities ranging from 15 to 130 km s-1, members of the Alpha Persei open cluster (log age = 7.40 yrs). The method consists in adjusting grids of synthetic spectra calculated with SYNSPEC48 (Hubeny & Lanz 1992) in the wavelength range of 4450–4600 Å. The input model atmospheres are LTE, RE, plane parallel line blanketed models calculated with ATLAS9 (Kurucz 1992a). A correlation may exist between [Fe/H] and the effective temperature. Further observations of a much larger sample of B, A and F stars in this cluster are foreseen in the near future.

Type
Research Article
Information
European Astronomical Society Publications Series , Volume 17: Element Stratification in Stars: 40 Years of Atomic Diffusion , 2005 , pp. 313 - 315
Copyright
© EAS, EDP Sciences, 2005

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