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dc.contributor.authorDhooghe, F.
dc.contributor.authorDe Keyser, J.
dc.contributor.authorHänni, N.
dc.contributor.authorAltwegg, K.
dc.contributor.authorCessateur, G.
dc.contributor.authorJehin, E.
dc.contributor.authorMaggiolo, R.
dc.contributor.authorRubin, M.
dc.contributor.authorWurz, P.
dc.date2021
dc.date.accessioned2021-10-12T04:39:36Z
dc.date.available2021-10-12T04:39:36Z
dc.identifier.urihttps://orfeo.belnet.be/handle/internal/8010
dc.descriptionA full-mission analysis has been conducted of Cl-bearing species in the coma of comet 67P/Churyumov–Gerasimenko as detected by the Double Focusing Mass Spectrometer (DFMS) of Rosetta's ROSINA instrument. 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 semivolatile species is unknown at this time.
dc.languageeng
dc.titleChlorine-bearing species and the 37Cl/35Cl isotope ratio in the coma of comet 67P/Churyumov-Gerasimenko
dc.typeArticle
dc.subject.frascatiPhysical sciences
dc.audienceScientific
dc.subject.freecomets
dc.subject.free67P/Churyumov–Gerasimenko
dc.source.titleMonthly Notices of the Royal Astronomical Society
dc.source.volume508
dc.source.issue1
dc.source.page1020-1032
Orfeo.peerreviewedYes
dc.identifier.doi10.1093/mnras/stab1732
dc.identifier.scopus


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