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Fast and easy computation of radiative accelerations in stellar interiors

Published online by Cambridge University Press:  02 March 2005

G. Alecian  and
F. LeBlanc
G. Alecian
Affiliation:
LUTH, Observatoire de Paris-Meudon, F-92195 Meudon Cedex, France
F. LeBlanc
Affiliation:
Département de physique et d'astronomie, Université de Moncton, Moncton, NB, E1A 3E9, Canada
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Abstract

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A new parametric method that approximates the radiative accelerations of bound-bound and bound-free transitions at large optical depths is presented. The parameters found in these new equations are calculated for the following trace elements: C, N, O, Ne, Na, Mg, Al, Si, S, Ar, Ca, and Fe and are made available to potential users. This method can be easily implemented in existing codes to study atomic diffusion without needing large computing resources or access to large atomic and opacity data bases.To search for other articles by the author(s) go to: http://adsabs.harvard.edu/abstract_service.html

Keywords

Diffusionmethods: numericalstars: atmospheres
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 2004 , Issue IAUS224 , July 2004 , pp. 587 - 589
Copyright
© 2004 International Astronomical Union