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    Origin of Molecular Oxygen in Comets: Current Knowledge and Perspectives

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    Authors
    Luspay-Kuti, A.
    Mousis, O.
    Lunine, J.I.
    Ellinger, Y.
    Pauzat, F.
    Raut, U.
    Bouquet, A.
    Mandt, K.E.
    Maggiolo, R.
    Ronnet, T.
    Brugger, B.
    Ozgurel, O.
    Fuselier, S.A.
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    Discipline
    Physical sciences
    Subject
    Molecular oxygen
    Comets
    Radiolysis
    Ice
    Astrobiology
    Audience
    Scientific
    Date
    2018
    Metadata
    Show full item record
    Description
    The Rosetta Orbiter Spectrometer for Ion and Neutral Analysis (ROSINA) instrument onboard the Rosetta spacecraft has measured molecular oxygen (O2) in the coma of comet 67P/Churyumov-Gerasimenko (67P/C-G) in surprisingly high abundances. These measurements mark the first unequivocal detection of O2 in a cometary environment. The large relative abundance of O2 in 67P/C-G despite its high reactivity and low interstellar abundance poses a puzzle for its origin in comet 67P/C-G, and potentially other comets. Since its detection, there have been a number of hypotheses put forward to explain the production and origin of O2 in the comet. These hypotheses cover a wide range of possibilities from various in situ production mechanisms to protosolar nebula and primordial origins. Here, we review the O2 formation mechanisms from the literature, and provide a comprehensive summary of the current state of knowledge of the sources and origin of cometary O2.
    Citation
    Luspay-Kuti, A.; Mousis, O.; Lunine, J.I.; Ellinger, Y.; Pauzat, F.; Raut, U.; Bouquet, A.; Mandt, K.E.; Maggiolo, R.; Ronnet, T.; Brugger, B.; Ozgurel, O.; Fuselier, S.A. (2018). Origin of Molecular Oxygen in Comets: Current Knowledge and Perspectives. , Space Science Reviews, Vol. 214, Issue 8, A115, DOI: 10.1007/s11214-018-0541-2.
    Identifiers
    uri: https://orfeo.belnet.be/handle/internal/7097
    doi: http://dx.doi.org/10.1007/s11214-018-0541-2
    Type
    Article
    Peer-Review
    Yes
    Language
    eng
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