Xenon isotopes in 67P/Churyumov-Gerasimenko show that comets contributed to Earth's atmosphere-Reference-Cited by-同舟云学术

Xenon isotopes in 67P/Churyumov-Gerasimenko show that comets contributed to Earth's atmosphere

Published:2017-06-09 Issue:6342 Volume:356 Page:1069-1072
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Marty B.¹^ORCID,Altwegg K.²³^ORCID,Balsiger H.²,Bar-Nun A.⁴,Bekaert D. V.¹^ORCID,Berthelier J.-J.⁵,Bieler A.²⁶,Briois C.⁷,Calmonte U.²^ORCID,Combi M.⁶,De Keyser J.⁸^ORCID,Fiethe B.⁹^ORCID,Fuselier S. A.¹⁰^ORCID,Gasc S.²^ORCID,Gombosi T. I.⁶^ORCID,Hansen K. C.⁶^ORCID,Hässig M.²¹⁰^ORCID,Jäckel A.²^ORCID,Kopp E.²,Korth A.¹¹,Le Roy L.²,Mall U.¹¹,Mousis O.¹²,Owen T.¹³,Rème H.¹⁴^ORCID,Rubin M.²^ORCID,Sémon T.²,Tzou C.-Y.²^ORCID,Waite J. H.¹⁰^ORCID,Wurz P.²^ORCID

Affiliation:

1. Centre de Recherches Pétrographiques et Géochimiques, CNRS, Université de Lorraine, 15 rue Notre Dame des Pauvres, BP 20, 54501 Vandoeuvre lès Nancy, France.

2. Physikalisches Institut, University of Bern, Sidlerstrasse 5, CH-3012 Bern, Switzerland.

3. Center for Space and Habitability, University of Bern, Sidlerstrasse 5, CH-3012 Bern, Switzerland.

4. Department of Geoscience, Tel Aviv University, Ramat Aviv, Tel Aviv, Israel.

5. Laboratoire Atmosphères, Milieux, Observations Spatiales (LATMOS), Institut Pierre Simon Laplace, CNRS, Université Pierre et Marie Curie, 4 Avenue de Neptune, 94100 Saint-Maur, France.

6. Department of Climate and Space Sciences and Engineering, University of Michigan, 2455 Hayward Street, Ann Arbor, MI 48109, USA.

7. Laboratoire de Physique et Chimie de l’Environnement et de l’Espace (LPC2E), UMR 6115 CNRS–Université d’Orléans, France.

8. Koninklijk Belgisch Instituut voor Ruimte-Aeronomie/Institut Royal d’Aéronomie Spatiale de Belgique (BIRA-IASB), Ringlaan 3, B-1180 Brussels, Belgium.

9. Institute of Computer and Network Engineering (IDA), Technische Universität Braunschweig, Hans-Sommer-Straße 66, D-38106 Braunschweig, Germany.

10. Department of Space Science, Southwest Research Institute, 6220 Culebra Road, San Antonio, TX 78228, USA.

11. Max-Planck-Institut für Sonnensystemforschung (MPS), Justus-von-Liebig-Weg 3, 37077 Göttingen, Germany.

12. Laboratoire d’Astrophysique de Marseille, CNRS, Aix Marseille Université, 13388 Marseille, France.

13. Institute for Astronomy, University of Hawaii, Honolulu, HI 96822, USA.

14. Institut de Recherche en Astrophysique et Planétologie, CNRS, Université Paul Sabatier, Observatoire Midi-Pyrénées, 9 Avenue du Colonel Roche, 31028 Toulouse Cedex 4, France.

Abstract

Comets contributed to Earth's atmosphere Models of xenon's origin in Earth's atmosphere require an additional, unknown source that has been a mystery for several decades. Marty et al. measured isotopic ratios of xenon released from comet 67P/Churyumov-Gerasimenko and found that they match the heretofore unknown source. The xenon appears to have been trapped in ice within the comet since before the solar system formed. Comets contributed about a quarter of the xenon on Earth, which constrains the amount of other materials (such as water) delivered to our planet by comets. Science , this issue p. 1069

Funder

Jet Propulsion Laboratory

European Research Council

European Space Agency

Agence Nationale de la Recherche

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

Reference35 articles.

1. The Chemical Composition of Comets—Emerging Taxonomies and Natal Heritage

2. Comet 81P/Wild 2 Under a Microscope