Computer Science
Scientific paper
Jan 1975
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975icar...24...95d&link_type=abstract
Icarus, vol. 24, Jan. 1975, p. 95-110.
Computer Science
18
Chemical Composition, Comet Nuclei, Flyby Missions, Molecular Spectra, Volatility, Abundance, Chondrites, Free Radicals, Metal Ions, Meteoritic Composition, Mission Planning, Upper Atmosphere
Scientific paper
In order to prepare a flyby mission to Comet Encke, six different sources of information on the possible chemical composition of the cometary nucleus are compared. These are: the neutral and charged radicals and molecules observed in cometary spectra; the chemical composition of type I carbonaceous chondrites; the meteor spectra; the metallic ions collected in the upper atmosphere and correlated with the meteor shower associated with Comet Encke; and finally the volatile molecules observed in a volatile-rich sample of lunar soil, that were interpreted as a possible cometary impact. Possible molecular abundances for the volatile fraction of Comet Encke are tentatively proposed.-
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