On the Formation and Evolution of Gaseous Structures in Comet P/Halley
β Scribed by Rita Schulz; Michael F. A'Hearn; Nalin H. Samarasinha
- Publisher
- Elsevier Science
- Year
- 1993
- Tongue
- English
- Weight
- 722 KB
- Volume
- 103
- Category
- Article
- ISSN
- 0019-1035
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A comparative study of ionization rates due to (i) solar EUV radiation, (ii) photoelectrons, and (iii) auroral electrons, is carried out on the ionosphere of Comet Halley for various ionic species. It is found that, in the vicinity of the ionization peak, the photoelectron impact ionization rate is
This report is the follow-up of the paper of A. Drouart et al. (1999, Icarus 140, 129) in which it was demonstrated that appropriate models of the solar nebula permit us to interpret the deuterium enrichment in water with respect to the protosolar D/H ratio measured in LL3 meteorites and comets. In