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Solar scandium abundance

Published online by Cambridge University Press:  01 April 2008

H. W. Zhang ,
T. Gehren  and
G. Zhao
H. W. Zhang
Affiliation:
Department of Astronomy, School of Physics, Peking University, Beijing 100871, P.R. China email: [email protected] Institut für Astronomie und Astrophysik der Universität München, Scheinerstrasse 1, D-81679 München, Germany
T. Gehren
Affiliation:
Institut für Astronomie und Astrophysik der Universität München, Scheinerstrasse 1, D-81679 München, Germany
G. Zhao
Affiliation:
National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, P.R. China
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Abstract

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We investigate the formation of neutral and singly ionized scandium lines in the solar photospheres. Extensive statistical equilibrium calculations were carried out for a model atom, which comprises 92 terms for Sc I and 79 for Sc II. Synthetic line profiles calculated from the level populations according to the NLTE departure coefficients were compared with the observed solar spectral atlas. Abundance determinations using the ODF model lead to a solar Sc abundance of between log ϵ⊙ = 3.07 and 3.13, depending on the choice of f values.

Keywords

Sun: abundancesline: formationline: profiles
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 4 , Symposium S252: The Art of Modeling Stars in the 21st Century , April 2008 , pp. 127 - 128
Copyright
Copyright © International Astronomical Union 2008

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