Dhooghe, Frederik; De Keyser, Johan; Hänni, Nora; Altwegg, Kathrin; Cessateur, Gaël; Jehin, Emmanuel; Maggiolo, Romain; Rubin, Martin; Wurz, Peter (2021). Chlorine-bearing species and the 37Cl/35Cl isotope ratio in the coma of comet 67P/Churyumov-Gerasimenko. Monthly notices of the Royal Astronomical Society, 508(1), pp. 1020-1032. Oxford University Press 10.1093/mnras/stab1732
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A full-mission analysis has been conducted of Cl-bearing species in the coma of comet 67P/Churyumov-Gerasimenko as detected by the Rosetta ROSINA/DFMS mass spectrometer. The isotope ratio of the two stable chlorine isotopes 37Cl/35Cl is found to be 0.336 ± 0.017, to be compared with the standard mean ocean chloride value of 0.320. The isotope ratio does not change appreciably throughout the mission. The Cl-bearing species fingerprint in DFMS indicates that there is at least one additional chlorine-bearing species in the coma next to HCl, CH3Cl and NH4Cl. The identity of this volatile or semi-volatile species is unknown at this time.
Item Type: |
Journal Article (Original Article) |
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Division/Institute: |
08 Faculty of Science > Physics Institute > Space Research and Planetary Sciences 08 Faculty of Science > Other Institutions > Emeriti, Faculty of Science 08 Faculty of Science > Physics Institute |
UniBE Contributor: |
Hänni, Nora Phillys, Altwegg, Kathrin, Rubin, Martin, Wurz, Peter |
Subjects: |
500 Science > 520 Astronomy 600 Technology > 620 Engineering 500 Science > 530 Physics |
ISSN: |
0035-8711 |
Publisher: |
Oxford University Press |
Language: |
English |
Submitter: |
Dora Ursula Zimmerer |
Date Deposited: |
09 Sep 2021 10:43 |
Last Modified: |
05 Dec 2022 15:52 |
Publisher DOI: |
10.1093/mnras/stab1732 |
BORIS DOI: |
10.48350/158333 |
URI: |
https://boris.unibe.ch/id/eprint/158333 |
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