Molecular abundances in circumstellar envelopes

Details Molecular abundances in circumstellar envelopes Molecular abundances in circumstellar envelopes

Aug 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986esasp.260..129o&link_type=abstract

In ESA Proceedings of an ESA Workshop on a Spaceborne Submillimeter Astronomy Mission. A Cornerstone of the ESA Long Term Scienc

Astronomy and Astrophysics

Astronomy

Abundance, Late Stars, Molecular Gases, Stellar Composition, Stellar Envelopes, Infrared Astronomy, Nuclear Fusion, Stellar Evolution

Scientific paper

About 30 molecules have been identified in extended massive circumstellar envelopes of late type stars from millimetre and infrared observations. Their abundances contain important clues on nucleosynthesis and evolution of the stars, and physical and chemical conditions in different types of envelopes. The main chemical processes there are briefly reviewed. Submillimetre astronomy will allow to explore the unknown behavior of basic species (C, C+, O, H2O, etc.) throughout the whole envelopes, as well as the detailed composition of the relatively warm intermediate layers.

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