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  Elemental and molecular abundances in comet 67P/Churyumov-Gerasimenko

Rubin, M., Altwegg, K., Balsiger, H., Berthelier, J.-J., Combi, M. R., Keyser, J. D., et al. (2019). Elemental and molecular abundances in comet 67P/Churyumov-Gerasimenko. Monthly Notices of the Royal Astronomical Society, 489(1), 594-607. doi:10.1093/mnras/stz2086.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0006-6912-0 Version Permalink: http://hdl.handle.net/21.11116/0000-0006-6913-F
Genre: Journal Article

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 Creators:
Rubin, Martin, Author
Altwegg, Kathrin, Author
Balsiger, Hans, Author
Berthelier, Jean-Jacques, Author
Combi, Michael R, Author
Keyser, Johan De, Author
Drozdovskaya, Maria, Author
Fiethe, Björn, Author
Fuselier, Stephen A, Author
Gasc, Sébastien, Author
Gombosi, Tamas I, Author
Hänni, Nora, Author
Hansen, Kenneth C, Author
Mall, Urs1, Author              
Rème, Henri, Author
Schroeder, Isaac R H G, Author
Schuhmann, Markus, Author
Sémon, Thierry, Author
Waite, Jack H, Author
Wampfler, Susanne F, Author
Wurz, 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: Comets are considered to be some of the most pristine and unprocessed Solar system objects accessible to in situ exploration. Investigating their molecular and elemental composition takes us on a journey back to the early period of our Solar system and possibly even further. In this work, we deduce the bulk abundances of the major volatile species in comet 67P/Churyumov-Gerasimenko, the target of the European Space Agency’s (ESA) Rosetta mission. The basis are measurements obtained with the ROSINA instrument suite on board the Rosetta orbiter during a suitable period of high outgassing near perihelion. The results are combined with both gas and dust composition measurements published in the literature. This provides an integrated inventory of the major elements present in the nucleus of 67P/Churyumov-Gerasimenko. Similar to comet 1P/Halley, which was visited by ESA’s Giotto spacecraft in 1986, comet 67P/Churyumov-Gerasimenko also shows near-solar abundances of oxygen and carbon, whereas hydrogen and nitrogen are depleted compared to solar. Still, the degree of devolatilization is lower than that of inner Solar system objects, including meteorites and the Earth. This supports the idea that comets are amongst the most pristine objects in our Solar system.

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Language(s): eng - English
 Dates: 2019
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: Peer
 Identifiers: DOI: 10.1093/mnras/stz2086
 Degree: -

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Title: Monthly Notices of the Royal Astronomical Society
  Other : Mon. Not. R. Astron. Soc.
Source Genre: Journal
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Publ. Info: Oxford : Oxford University Press
Pages: - Volume / Issue: 489 (1) Sequence Number: - Start / End Page: 594 - 607 Identifier: ISSN: 1365-8711
CoNE: https://pure.mpg.de/cone/journals/resource/1000000000024150