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Elemental compositions of comet 81P/Wild 2 samples collected by Stardust

Elemental compositions of comet 81P/Wild 2 samples collected by Stardust
Elemental compositions of comet 81P/Wild 2 samples collected by Stardust
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 CI 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 CI meteorites may not represent the solar system composition for these moderately volatile minor elements.
0036-8075
1731-1735
Flynn, George J.
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Wozniakiewicz, Penelope
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Zolensky, Michael E.
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Flynn, George J., Bleuret, Pierre, Borg, Janet, Bradley, John.P., Brenker, Frank E., Brennan, Sean, Bridges, John, Brownlee, Don E., Bullock, Emma S., Burghammer, Manfred, Clark, Benton C., Dai, Zu Rong, Daghlian, Charles P., Djouadi, Zahia, Fakra, Sirine, Ferroir, Tristan, Floss, Christine, Franchi, Ian A., Gainsforth, Zack, Gallien, Jean-Paul, Gillet, Philippe, Grant, Patrick G., Graham, Giles A., Green, Simon F., Grossemy, Faustine, Heck, Philipp R., Herzog, Gregory F., Hoppe, Peter, Hörz, Friedrich, Huth, Joachim, Ignatyev, Ignatyev, Janssens, Koen, Joswiak, David, Kearsley, Anton T., Khodja, Hicham, Lanzirotti, Antonio, Leitner, Jan, Lemelle, Laurence, Leroux, Hugues, Luening, Katharina, MacPherson, Glenn J., Marhas, Kuljeet K., Marcus, Matthew A., Matrajt, Graciela, Nakamura, Tomoki, Nakamura-Messenger, Keiko, Nakano, Tsukasa, Newville, Matthew, Papanastassiou, Dimitri A., Pianetta, Piero, Rao, William, Riekel, Christian, Rietmeijer, Frans J.M., Rost, Detlef, Schwandt, Craig S., See, Thomas H., Sheffield-Parker, Julie, Simionovici, Alexandre, Sitnitsky, Ilona, Snead, Christopher J., Stadermann, Frank J., Stephan, Thomas, Stroud, Rhonda M., Susini, Jean, Suzuki, Yoshio, Sutton, Stephen R., Taylor, Susan, Teslich, Nick, Troadec, D., Tsou, Peter, Tsuchiyama, Akira, Uesugi, Kentaro, Vekemans, Bart, Vicenzi, Edward P., Vincze, Laszlo, Westphal, Andrew J., Wozniakiewicz, Penelope, Zinner, Ernst and Zolensky, Michael E. (2006) Elemental compositions of comet 81P/Wild 2 samples collected by Stardust. Science, 314 (5806), 1731-1735. (doi:10.1126/science.1136141).

Record type: Article

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 CI 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 CI meteorites may not represent the solar system composition for these moderately volatile minor elements.

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Published date: 15 December 2006
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Identifiers

Local EPrints ID: 57237
URI: http://eprints.soton.ac.uk/id/eprint/57237
DOI: doi:10.1126/science.1136141
ISSN: 0036-8075
PURE UUID: 79b4530d-6234-4f9c-a734-b2d69054ac4d

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Date deposited: 26 Aug 2008
Last modified: 15 Mar 2024 11:05

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Contributors

Author: George J. Flynn
Author: Pierre Bleuret
Author: Janet Borg
Author: John.P. Bradley
Author: Frank E. Brenker
Author: Sean Brennan
Author: John Bridges
Author: Don E. Brownlee
Author: Emma S. Bullock
Author: Manfred Burghammer
Author: Benton C. Clark
Author: Zu Rong Dai
Author: Charles P. Daghlian
Author: Zahia Djouadi
Author: Sirine Fakra
Author: Tristan Ferroir
Author: Christine Floss
Author: Ian A. Franchi
Author: Zack Gainsforth
Author: Jean-Paul Gallien
Author: Philippe Gillet
Author: Patrick G. Grant
Author: Giles A. Graham
Author: Simon F. Green
Author: Faustine Grossemy
Author: Philipp R. Heck
Author: Gregory F. Herzog
Author: Peter Hoppe
Author: Friedrich Hörz
Author: Joachim Huth
Author: Ignatyev Ignatyev
Author: Koen Janssens
Author: David Joswiak
Author: Anton T. Kearsley
Author: Hicham Khodja
Author: Antonio Lanzirotti
Author: Jan Leitner
Author: Laurence Lemelle
Author: Hugues Leroux
Author: Katharina Luening
Author: Glenn J. MacPherson
Author: Kuljeet K. Marhas
Author: Matthew A. Marcus
Author: Graciela Matrajt
Author: Tomoki Nakamura
Author: Keiko Nakamura-Messenger
Author: Tsukasa Nakano
Author: Matthew Newville
Author: Dimitri A. Papanastassiou
Author: Piero Pianetta
Author: William Rao
Author: Christian Riekel
Author: Frans J.M. Rietmeijer
Author: Detlef Rost
Author: Craig S. Schwandt
Author: Thomas H. See
Author: Julie Sheffield-Parker
Author: Alexandre Simionovici
Author: Ilona Sitnitsky
Author: Christopher J. Snead
Author: Frank J. Stadermann
Author: Thomas Stephan
Author: Rhonda M. Stroud
Author: Jean Susini
Author: Yoshio Suzuki
Author: Stephen R. Sutton
Author: Susan Taylor
Author: Nick Teslich
Author: D. Troadec
Author: Peter Tsou
Author: Akira Tsuchiyama
Author: Kentaro Uesugi
Author: Bart Vekemans
Author: Edward P. Vicenzi
Author: Laszlo Vincze
Author: Andrew J. Westphal
Author: Penelope Wozniakiewicz
Author: Ernst Zinner
Author: Michael E. Zolensky

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