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3.1 Dust in Comets and Interplanetary Matter

Published online by Cambridge University Press:  12 April 2016

Vladimir Vanýsek
Vladimir Vanýsek*
Affiliation:
Department of Astronomy and Astrophysics, Charles University, 150 00 Praha 5 – Smichov, Czechoslovakia

Summary

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Results of many current attemps to estimate the physical and chemical composition of dust particles in comets are reviewed and discussed. It is shown that even the most basic parameters, such as albedo of the cometary dust, are not properly known at the present time. The emission feature in the infrared spectra of comets, which resembles those observed in the interstellar (and circumstellar) clouds and which indicates a relation between the general composition of comets and interstellar matter, is widely ascribed to silicates. Similar features may, however, be also caused by polymerized molecules or hydrocarbons mantles of the dust grains.

Type
3 Cometary Dust
Information
International Astronomical Union Colloquium , Volume 31: Interplanetary Dust and Zodiacal Light , 1976 , pp. 299 - 313
Copyright
Copyright © Springer-Verlag 1976

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