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The synthesis of organic and inorganic compounds in evolved stars

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  • Sun Kwok

    (Institute of Astronomy & Astrophysics, Academia Sinica)

Abstract

Recent isotopic analysis of meteorites and interplanetary dust has identified solid-state materials of pre-solar origin. We can now trace the origin of these inorganic grains to the circumstellar envelopes of evolved stars. Moreover, organic (aromatic and aliphatic) compounds have been detected in proto-planetary nebulae and planetary nebulae, which are the descendants of carbon stars. This implies that molecular synthesis is actively happening in the circumstellar environment on timescales as short as several hundred years. The detection of stellar grains in the Solar System suggests that they can survive their journey through the interstellar medium and that they are a major contributor of interstellar grains.

Suggested Citation

  • Sun Kwok, 2004. "The synthesis of organic and inorganic compounds in evolved stars," Nature, Nature, vol. 430(7003), pages 985-991, August.
    • Handle: RePEc:nat:nature:v:430:y:2004:i:7003:d:10.1038_nature02862
    DOI: 10.1038/nature02862
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