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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 Brennan
; 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
; | | Date: |
15 Dec 2006 | | Journal: | Science, 314 (5806), 1731-5 | | 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 ( approximately 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. | | Source: | PubMed, pmid17170294 doi: 10.1126/science.1136141 | | Services: | Forum | Review | Favorites | |
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