Organics captured from comet 81P/Wild 2 by the Stardust spacecraft

Sandford, S.A. and Aleon, J. and Alexander, C.M.O. and Araki, T. and Bajt, S. and Baratta, G.A. and Borg, J. and Bradley, J.P. and Brownlee, D.E. and Brucato, J.R. and Burchell, M.J. and Busemann, H. and Butterworth, A. and Clemett, S.J. and Cody, G. and Colangeli, L. and Cooper, G. and D'Hendecourt, L. and Djouadi, Z. and Dworkin, J.P. and Ferrini, G. and Fleckenstein, H. and Flynn, G.J. and Franchi, I.A. and Fries, M. and Gilles, M.K. and Glavin, D.P. and Gounelle, M. and Grossemy, F. and Jacobsen, C. and Keller, L.P. and Kilcoyne, A.L.D. and Leitner, J. and Matrajt, G. and Meibom, A. and Mennella, V. and Mostefaoui, S. and Nittler, L.R. and Palumbo, M.E. and Papanastassiou, D.A. and Robert, F. and Rotundi, A. and Snead, C.J. and Spencer, M.K. and Stadermann, F.J. and Steele, A. and Stephan, T. and Tsou, P. and Tyliszczak, T. and Westphal, A.J. and Wirick, S. and Wopenka, B. and Yabuta, H. and Zare, R.N. and Zolensky, M.E. (2006) Organics captured from comet 81P/Wild 2 by the Stardust spacecraft. Science, 314 (5806). pp. 1720-1724. ISSN 0036-8075.

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Official URL
http://dx.doi.org/10.1126/science.1135841

Abstract

Organics found in comet 81P/ Wild 2 samples show a heterogeneous and unequilibrated distribution in abundance and composition. Some organics are similar, but not identical, to those in interplanetary dust particles and carbonaceous meteorites. A class of aromatic-poor organic material is also present. The organics are rich in oxygen and nitrogen compared with meteoritic organics. Aromatic compounds are present, but the samples tend to be relatively poorer in aromatics than are meteorites and interplanetary dust particles. The presence of deuterium and nitrogen-15 excesses suggest that some organics have an interstellar/ protostellar heritage. Although the variable extent of modification of these materials by impact capture is not yet fully constrained, a diverse suite of organic compounds is present and identifiable within the returned samples.

Item Type: Article
Subjects: Q Science
Divisions: Faculties > Science Technology and Medical Studies > School of Physical Sciences
Depositing User: Mark Burchell
Date Deposited: 02 Sep 2008 13:44
Last Modified: 14 Jan 2010 14:19
Resource URI: http://kar.kent.ac.uk/id/eprint/5077 (The current URI for this page, for reference purposes)
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