CAOSP abstracts, Volume: 32, No.: 2, year: 2002

Abstract: Comets were created as a by-product of planet formation from pristine interstellar material. A certain similarity between the composition of both cometary nuclei and interstellar clouds has actually be observed by several authors in few last decades. We summarize the quantitative measurements of abundances of observed molecules in both the above entities and discuss their similarities and differences. The found variety of the chemical composition of comets is practically within the range of observed molecular composition of relatively cold matter in the Galaxy. It proves that the gaseous and dusty components from which the cometary nuclei were built are primordial.

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