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Title: Evidence for interstellar origin of seven dust particles collected by the Stardust spacecraft
Authors: Westphal, A. J.
Stroud, R. M.
Bechtel, H. A.
Brenker, F. E.
Butterworth, A. L.
Flynn, G. J.
Frank, D. R.
Gainsforth, Z.
Hillier, J. K.
Postberg, F.
Simionovici, A. S.
Sterken, V. J.
Nittler, L. R.
Allen, C.
Anderson, D.
Ansari, A.
Bajt, S.
Bastien, R. K.
Bassim, N.
Bridges, John C.
Brownlee, D. E.
Burchell, M.
Burghammer, M.
Changela, H.
Cloetens, P.
Davis, A. M.
Doll, R.
Floss, C.
Grün, E.
Heck, P. R.
Hoppe, P.
Hudson, B.
Huth, J.
Kearsley, A.
King, A. J.
Lai, B.
Leitner, J.
Lemelle, L.
Leonard, A.
Leroux, H.
Lettieri, R.
Marchant, W.
Ogliore, R.
Ong, W. J.
Price, M. C.
Sandford, S. A.
Sans Tresseras, J-A.
Schmitz, S.
Schoonjans, T.
Schreiber, K.
Silversmit, G.
Solé, V. A.
Srama, R.
Stadermann, F.
Stephan, T.
Stodolna, J.
Sutton, S.
Trieloff, M.
Tsou, P.
Tyliszczak, T.
Vekemans, B.
Vincze, L.
Von Korff, J.
Wordsworth, N.
Zevin, D.
Zolensky, M. E.
First Published: Aug-2014
Publisher: American Association for the Advancement of Science
Citation: Science, 345 (6198), pp. 786-791
Abstract: Seven particles captured by the Stardust Interstellar Dust Collector and returned to Earth for laboratory analysis have features consistent with an origin in the contemporary interstellar dust stream. More than 50 spacecraft debris particles were also identified. The interstellar dust candidates are readily distinguished from debris impacts on the basis of elemental composition and/or impact trajectory. The seven candidate interstellar particles are diverse in elemental composition, crystal structure, and size. The presence of crystalline grains and multiple iron-bearing phases, including sulfide, in some particles indicates that individual interstellar particles diverge from any one representative model of interstellar dust inferred from astronomical observations and theory.
DOI Link: 10.1126/science.1252496
ISSN: 0036-8075
eISSN: 1095-9203
Version: Post-print
Status: Peer-reviewed
Type: Journal Article
Rights: Archived with reference to SHERPA/RoMEO and publisher website. This is the author’s version of the work. It is posted here by permission of the AAAS for personal use, not for redistribution. The definitive version was published in Science on 15 August 2014: Vol. 345, DOI: 10.1126/science.1252496
Appears in Collections:Published Articles, Dept. of Physics and Astronomy

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