Evidence for interstellar origin of seven dust particles collected by the Stardust spacecraft

Westphal, A. J. and Stroud, R. M. and Bechtel, H. A. and Brenker, F. E. and Butterworth, A. L. and Flynn, G. J. and Frank, D. R. and Gainsforth, Z. and Hillier, Jon K. and Postberg, F. and Simionovici, A. S. and Sterken, V. J. and Nittler, L. R. and Allen, C. and Anderson, D. and Ansari, A. and Bajt, S. and Bastien, R. K. and Bassim, N. and Bridges, J. and Brownlee, D. E. and Burchell, Mark J. and Burghammer, M. and Changela, H. and Cloetens, P. and Davis, A. M. and Doll, R. and Floss, C. and Grun, E. and Heck, P. R. and Hoppe, P. and Hudson, B. and Huth, J. and Kearsley, A. and King, A. J. and Lai, B. and Leitner, J. and Lemelle, L. and Leonard, A. and Leroux, H. and Lettieri, R. and Marchant, W. and Ogliore, R. and Ong, W. J. and Price, M. C. and Sandford, S. A. and Tresseras, J.-A. S. and Schmitz, S. and Schoonjans, T. and Schreiber, K. and Silversmit, G. and Sole, V. A. and Srama, R. and Stadermann, F. and Stephan, T. and Stodolna, J. and Sutton, S. and Trieloff, M. and Tsou, P. and Tyliszczak, T. and Vekemans, B. and Vincze, L. and Von Korff, J. and Wordsworth, N. and Zevin, D. and Zolensky, M. E. (2014) Evidence for interstellar origin of seven dust particles collected by the Stardust spacecraft. Science, 345 (6198). pp. 786-791. ISSN 0036-8075. E-ISSN 1095-9203. (doi:https://doi.org/10.1126/science.1252496) (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided)

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Official URL
http://dx.doi.org/10.1126/science.1252496

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.

Item Type: Article
Subjects: Q Science
Q Science > QB Astronomy
Divisions: Faculties > Sciences > School of Physical Sciences
Depositing User: Mark Burchell
Date Deposited: 21 Oct 2014 14:07 UTC
Last Modified: 30 May 2018 09:53 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/43560 (The current URI for this page, for reference purposes)
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