EAS Publications Series
Volume 17, 2005Element Stratification in Stars: 40 Years of Atomic Diffusion
|Page(s)||313 - 315|
|Published online||13 January 2006|
G. Alecian, O. Richard and S. Vauclair (eds)
EAS Publications Series, 17 (2005) 313-315
Chemical abundances for ten stars in the Alpha Persei open cluster
Groupe de Recherches en Astronomie et Astrophysique du Languedoc UMR
5024, Université Montpellier II, Place E. Bataillon, 34095 Montpellier, France
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.
© EAS, EDP Sciences, 2005
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