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High-molecular-weight organic matter in the particles of comet 67P/Churyumov–Gerasimenko

Fray, Nicolas (author)
CNRS, France; Paris Diderot University, France
Bardyn, Anaïs (author)
CNRS, France; Paris Diderot University, France; University of Orléans, France
Cottin, Hervé (author)
CNRS, France; Paris Diderot University, France
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Altwegg, Kathrin (author)
University of Bern, Switzerland
Baklouti, Donia (author)
CNRS, France; University of Paris-Sud, France
Briois, Christelle (author)
CNRS, France; University of Orléans, France
Colangeli, Luigi (author)
ESTEC European Space Research and Technology Centre, The Netherlands
Engrand, Cécile (author)
CNRS, France; University of Paris-Saclay, France; University of Paris-Sud, France
Fischer, Henning (author)
Max Planck Institute for Solar System Research, Germany
Glasmachers, Albrecht (author)
University of Wuppertal, Germany
Grün, Eberhard (author)
Max Planck Institute for Nuclear Physics, Germany
Haerendel, Gerhard (author)
Max Planck Institute for Extraterrestrial Physics, Germany
Henkel, Hartmut (author)
Von Hoerner und Sulger GmbH, Germany
Höfner, Herwig (author)
Max Planck Institute for Extraterrestrial Physics, Germany
Hornung, Klaus (author)
Universität der Bundeswehr, Germany
Jessberger, Elmar K. (author)
University of Münster, Germany
Koch, Andreas (author)
Von Hoerner und Sulger GmbH, Germany
Krüger, Harald (author)
Max Planck Institute for Solar System Research, Germany
Langevin, Yves (author)
CNRS, France; University of Paris-Sud, France
Lehto, Harry (author)
University of Turku, Finland
Lehto, Kirsi (author)
University of Turku, Finland
Le Roy, Léna (author)
University of Bern, Switzerland
Merouane, Sihane (author)
Max Planck Institute for Solar System Research, Germany
Modica, Paola (author)
CNRS, France; Paris Diderot University, France; University of Orléans, France
Orthous-Daunay, François-Régis (author)
CNRS, France; Université Grenoble Alpes, France
Paquette, John (author)
Max Planck Institute for Solar System Research, Germany
Raulin, François (author)
CNRS, France; Paris Diderot University, France
Rynö, Jouni (author)
Finnish Meteorological Institute, Finland
Schulz, Rita (author)
ESA European Space Agency, The Netherlands
Silén, Johan (author)
Finnish Meteorological Institute, Finland
Siljeström, Sandra (author)
RISE,Medicinteknik
Steiger, Wolfgang (author)
RC Seibersdorf Research GmbH Business Field Aerospace Technology, Austria
Stenzel, Oliver (author)
Max Planck Institute for Solar System Research, Germany
Stephan, Thomas (author)
University of Chicago, USA
Thirkell, Laurent (author)
CNRS, France; University of Orléans, France
Thomas, Roger (author)
CNRS, France; University of Orléans, France
Torkar, Klaus (author)
Austrian Academy of Sciences, Austria
Varmuza, Kurt (author)
Vienna University of Technology, Austria
Wanczek, Karl-Peter (author)
University of Bremen, Germany
Zaprudin, Boris (author)
University of Turku, Finland
Kissel, Jochen (author)
Max Planck Institute for Solar System Research, Germany
Hilchenbach, Martin (author)
Max Planck Institute for Solar System Research, Germany
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 (creator_code:org_t)
2016-09-07
2016
English.
In: Nature. - : Nature Publishing Group. - 0028-0836 .- 1476-4687. ; 538:7623, s. 72-74
Related links:
https://urn.kb.se/re...
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https://doi.org/10.1...
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  • Journal article (peer-reviewed)
Abstract Subject headings
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  • The presence of solid carbonaceous matter in cometary dust was established by the detection of elements such as carbon, hydrogen, oxygen and nitrogen in particles from comet 1P/Halley1, 2. Such matter is generally thought to have originated in the interstellar medium3, but it might have formed in the solar nebula—the cloud of gas and dust that was left over after the Sun formed4. This solid carbonaceous material cannot be observed from Earth, so it has eluded unambiguous characterization5. Many gaseous organic molecules, however, have been observed6, 7, 8, 9; they come mostly from the sublimation of ices at the surface or in the subsurface of cometary nuclei8. These ices could have been formed from material inherited from the interstellar medium that suffered little processing in the solar nebula10. Here we report the in situ detection of solid organic matter in the dust particles emitted by comet 67P/Churyumov–Gerasimenko; the carbon in this organic material is bound in very large macromolecular compounds, analogous to the insoluble organic matter found in the carbonaceous chondrite meteorites11, 12. The organic matter in meteorites might have formed in the interstellar medium and/or the solar nebula, but was almost certainly modified in the meteorites’ parent bodies11. We conclude that the observed cometary carbonaceous solid matter could have the same origin as the meteoritic insoluble organic matter, but suffered less modification before and/or after being incorporated into the comet.

Subject headings

NATURVETENSKAP  -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
NATURAL SCIENCES  -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)

Keyword

Asteroids
comets
Kuiper belt

Publication and Content Type

ref (subject category)
art (subject category)

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