Abstract
The chemistry of circumstellar envelopes around evolved stars is extremely rich, especially for C-rich ones. The discussion of the chemistry of inner layers is very difficult because of their complexity. Modelling of radical and ion photochemistry in the outer shells is now successful in accounting for the species, often complex, there observed by radioastronomy. The chemistry of sulfur and carbon bearing molecules in O-rich envelopes, and that of molecular ions in C-rich ones, are especially discussed.
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Omont, A. (1989). Circumstellar chemistry. In: The Physics and Chemistry of Interstellar Molecular Clouds: mm and Sub-mm Observations in Astrophysics. Lecture Notes in Physics, vol 331. Springer, Berlin, Heidelberg. https://doi.org/10.1007/BFb0119512
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DOI: https://doi.org/10.1007/BFb0119512
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