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The composition of heavy molecular ions inside the ionopause of Comet HalleyThe RPA2-PICCA instrument aboard the Giotto spacecraft obtained 10-210 amu mass spectral of cold thermal molecular ions in the coma of Comet Halley. The dissociation products of the long chain formaldehyde polymer polyoxymethylene (POM) have recently been proposed as the dominant complex molecules in the coma of Comet Halley; however, POM alone cannot account for all of the features of the high resolution spectrum. An important component of the dust at Comet Halley is particles highly enriched in carbon, hydrogen, oxygen, and nitrogen relative to the composition of carbonaceous chondrites. Since this dust could be a source for the heavy molecules observed by PICCA, a search was conducted for other chemical species by determining all the molecules with mass between 20 and 120 amu which can be made from the relatively abundant C, H, O, and N, without regard to chemical structure.
Document ID
19910005697
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Mitchell, David L. (California Univ. Berkeley., United States)
Lin, R. P. (California Univ. Berkeley., United States)
Anderson, K. A. (California Univ. Berkeley., United States)
Carlson, C. W. (California Univ. Berkeley., United States)
Curtis, D. W. (California Univ. Berkeley., United States)
Korth, A. (Max-Planck-Inst. fuer Aeronomie Katlenburg-Lindau (Germany, F.R.)., United States)
Reme, H. (Centre National de la Recherche Scientifique Toulouse (France)., United States)
Sauvaud, J. A. (Centre National de la Recherche Scientifique Toulouse (France)., United States)
Duston, C. (Centre National de la Recherche Scientifique Toulouse (France)., United States)
Mendis, D. A. (California Univ. San Diego., United States)
Date Acquired
September 6, 2013
Publication Date
December 1, 1989
Publication Information
Publication: NASA, Ames Research Center, Interstellar Dust: Contributed Papers
Subject Category
Astrophysics
Accession Number
91N15010
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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