The volatile fraction of the cometary nucleus |
| |
| Authors: | AH Delsemme |
| |
| Institution: | Department of Physics and Astronomy, The University of Toledo, Toledo, Ohio 43606, USA |
| |
| Abstract: | 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. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
