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Article Contents
1 Introduction
2 Physical properties of S stars
3 Chemical equilibrium composition of the gas phase
4 Chemical equilibrium condensation
5 Nucleation
6 Non-equilibrium condensation
7 Model calculation
8 Concluding remarks
Appendix A: Extinction by dust grains
Appendix B: Thermodynamic data for Fe-Si compounds

Copyright ESO 2002
Published by EDP Sciences