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  Krypton isotopes and noble gas abundances in the coma of comet 67P/Churyumov-Gerasimenko

Rubin, M., Altwegg, K., Balsiger, H., Bar-Nun, A., Berthelier, J.-J., Briois, C., et al. (2018). Krypton isotopes and noble gas abundances in the coma of comet 67P/Churyumov-Gerasimenko. Science Advances, 4(7): eaar6297. doi:10.1126/sciadv.aar6297.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0003-C388-7 Version Permalink: http://hdl.handle.net/21.11116/0000-0003-C389-6
Genre: Journal Article

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 Creators:
Rubin, Martin, Author
Altwegg, Kathrin, Author
Balsiger, Hans, Author
Bar-Nun, Akiva, Author
Berthelier, Jean-Jacques, Author
Briois, Christelle, Author
Calmonte, Ursina, Author
Combi, Michael, Author
Keyser, Johan De, Author
Fiethe, Björn, Author
Fuselier, Stephen A., Author
Gasc, Sebastien, Author
Gombosi, Tamas I., Author
Hansen, Kenneth C., Author
Kopp, Ernest, Author
Korth, Axel1, Author              
Laufer, Diana, Author
Le Roy, Léna, Author
Mall, Urs1, Author              
Marty, Bernard, Author
Mousis, Olivier, AuthorOwen, Tobias, AuthorRème, Henri, AuthorSémon, Thierry, AuthorTzou, Chia-Yu, AuthorWaite, Jack H., AuthorWurz, Peter, Author more..
Affiliations:
1Department Planets and Comets, Max Planck Institute for Solar System Research, Max Planck Society, ou_1832288              

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 Abstract: The Rosetta Orbiter Spectrometer for Ion and Neutral Analysis mass spectrometer Double Focusing Mass Spectrometer on board the European Space Agency’s Rosetta spacecraft detected the major isotopes of the noble gases argon, krypton, and xenon in the coma of comet 67P/Churyumov-Gerasimenko. Earlier, it was found that xenon exhibits an isotopic composition distinct from anywhere else in the solar system. However, argon isotopes, within error, were shown to be consistent with solar isotope abundances. This discrepancy suggested an additional exotic component of xenon in comet 67P/Churyumov-Gerasimenko. We show that krypton also exhibits an isotopic composition close to solar. Furthermore, we found the argon to krypton and the krypton to xenon ratios in the comet to be lower than solar, which is a necessity to postulate an addition of exotic xenon in the comet.

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Language(s): eng - English
 Dates: 2018
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: Peer
 Identifiers: DOI: 10.1126/sciadv.aar6297
 Degree: -

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Title: Science Advances
  Other : Sci. Adv.
Source Genre: Journal
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Affiliations:
Publ. Info: Washington : AAAS
Pages: - Volume / Issue: 4 (7) Sequence Number: eaar6297 Start / End Page: - Identifier: ISSN: 2375-2548
CoNE: https://pure.mpg.de/cone/journals/resource/2375-2548