Charge exchange in cometary coma : Discovery of H- ions in the solar wind close to comet 67P/Churyumov-Gerasimenko
As Rosetta was orbiting comet 67P/Churyumov-Gerasimenko, the Ion and Electron Sensor detected negative particles with angular distributions like those of the concurrently measured solar wind protons but with fluxes of only about 10% of the proton fluxes and energies of about 90% of the proton energi...
| Publié dans: | Geophysical research letters. - 1984. - 42(2015), 13 vom: 16. Juli, Seite 5125-5131 |
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| Auteur principal: | |
| Autres auteurs: | , , , , , |
| Format: | Article |
| Langue: | English |
| Publié: |
2015
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| Accès à la collection: | Geophysical research letters |
| Sujets: | Journal Article charge exchange comet solar wind |
| Résumé: | As Rosetta was orbiting comet 67P/Churyumov-Gerasimenko, the Ion and Electron Sensor detected negative particles with angular distributions like those of the concurrently measured solar wind protons but with fluxes of only about 10% of the proton fluxes and energies of about 90% of the proton energies. Using well-known cross sections and energy-loss data, it is determined that the fluxes and energies of the negative particles are consistent with the production of H- ions in the solar wind by double charge exchange with molecules in the coma |
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| Description: | Date Revised 25.03.2024 published: Print-Electronic Citation Status PubMed-not-MEDLINE |
| ISSN: | 0094-8276 |