Abstract
The accuracy of the abundances are of course especially interesting when compared to some variations observed : the problem is to find if these variations are significantly larger than the uncertainties. The answer is obviously important, since it has some consequences on the nucleosynthesis theory, the evolution of the Galaxy, etc...
Considerable work is in progress on the theoretical side. NLTE effects have been considered (for example Steenbock and Holweger 1984), the convection with inhomogeneities and an overionization effect is considered (Nordlund 1984), bringing improvements which could possibly reach up to a factor of two (but still very uncertain) in the solar iron abundance. No doubt that the careful comparison of different methods will help to find the right procedures for determining the abundances in a much safer way.
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Spite, F. (1990). Accuracy of the determination of the abundances in solar type stars. In: Wehrse, R. (eds) Accuracy of Element Abundances from Stellar Atmospheres. Lecture Notes in Physics, vol 356. Springer, Berlin, Heidelberg. https://doi.org/10.1007/BFb0036065
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DOI: https://doi.org/10.1007/BFb0036065
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