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Elemental compositions of comet 81P/wild 2 samples collected by stardust

  • George J. Flynn
  • , Pierre Bleuet
  • , Janet Borg
  • , John P. Bradley
  • , Frank E. Brenker
  • , Sean Brennen
  • , John Bridges
  • , Don E. Brownlee
  • , Emma S. Bullock
  • , Manfred Burghammer
  • , Benton C. Clark
  • , Zu Rong Dai
  • , Charles P. Daghlian
  • , Zahia Djouadi
  • , Sirine Fakra
  • , Tristan Ferroir
  • , Christine Floss
  • , Ian A. Franchi
  • , Zack Gainsforth
  • , Jean Paul Gallien
  • Philippe Gillet, Patrick G. Grant, Giles A. Graham, Simon F. Green, Faustine Grossemy, Philipp R. Heck, Gregory F. Herzog, Peter Hoppe, Friedrich Hörz, Joachim Huth, Konstantin Ignatyev, Hope A. Ishii, Koen Janssens, David Joswiak, Anton T. Kearsley, Hicham Khodja, Antonio Lanzirotti, Jan Leitner, Laurence Lemelle, Hugues Leroux, Katharina Luening, Glenn J. MacPherson, Kuljeet K. Marhas, Matthew A. Marcus, Graciela Matrajt, Tomoki Nakamura, Keiko Nakamura-Messenger, Tsukasa Nakano, Matthew Newville, Dimitri A. Papanastassiou, Piero Pianetta, William Rao, Christian Riekel, Frans J.M. Rietmeijer, Detlef Rost, Craig S. Schwandt, Thomas H. See, Julie Sheffield-Parker, Alexandre Simionovici, Ilona Sitnitsky, Christopher J. Snead, Frank J. Stadermann, Thomas Stephan, Rhonda M. Stroud, Jean Susini, Yoshio Suzuki, Stephen R. Sutton, Susan Taylor, Nick Teslich, D. Troadec, Peter Tsou, Akira Tsuchiyama, Kentaro Uesugi, Bart Vekemans, Edward P. Vicenzi, Laszlo Vincze, Andrew J. Westphal, Penelope Wozniakiewicz, Ernst Zinner, Michael E. Zolensky
  • European Synchrotron Radiation Facility
  • IAS Orsay
  • Lawrence Livermore National Laboratory
  • Goethe University Frankfurt
  • SLAC National Accelerator Laboratory
  • Open University Milton Keynes
  • University of Washington
  • Smithsonian Institution
  • Lockheed Martin
  • Dartmouth College
  • Lawrence Berkeley National Laboratory
  • École normale supérieure de Lyon
  • Washington University St. Louis
  • University of California at Berkeley
  • CEA Saclay
  • Max Planck Institute for Chemistry
  • Rutgers - The State University of New Jersey, New Brunswick
  • NASA Johnson Space Center
  • University of Antwerp
  • The Natural History Museum, London
  • The University of Chicago
  • University of Münster
  • University Lille
  • Kyushu University
  • National Institute of Advanced Industrial Science and Technology
  • Jet Propulsion Laboratory, California Institute of Technology
  • University of Georgia
  • University of New Mexico
  • XRT Limited
  • SUNY Plattsburgh
  • Naval Research Laboratory
  • Japan Synchrotron Radiation Research Institute
  • Dartmouth College
  • The University of Osaka
  • Ghent University

Research output: Contribution to journalArticlepeer-review

186 Scopus citations

Abstract

We measured the elemental compositions of material from 23 particles in aerogel and from residue in seven craters in aluminum foil that was collected during passage of the Stardust spacecraft through the coma of comet 81P/Wild 2. These particles are chemically heterogeneous at the largest size scale analyzed (-180 ng). The mean elemental composition of this Wild 2 material is consistent with the Cl meteorite composition, which is thought to represent the bulk composition of the solar system, for the elements Mg, Si, Mn, Fe, and Ni to 35%, and for Ca and Ti to 60%. The elements Cu, Zn, and Ga appear enriched in this Wild 2 material, which suggests that the Cl meteorites may not represent the solar system composition for these moderately volatile minor elements.

Original languageEnglish
Pages (from-to)1731-1735
Number of pages5
JournalScience
Volume314
Issue number5806
DOIs
StatePublished - Dec 15 2006

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