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Impact features on Stardust: implications for comet 81P/Wild 2 dust

Horz, Friedrich; Bastien, Ron; Borg, Janet; Bradley, John P.; Bridges, John C.; Brownlee, Donald E.; Burchell, Mark J.; Chi, Miaofang; Cintala, Mark J.; Dai, Zu Rong; Djouadi, Zahia; Dominquez, Gerardo; Economou, Thanasis E.; Fairey, Sam A. J.; Floss, Christine; Franchi, Ian A.; Graham, Giles A.; Green, Simon F.; Heck, Philipp; Hoppe, Peter; Huth, Joachim; Ishii, Hope; Kearsley, Anton T.; Kissel, Jochen; Leitner, Jan; Leroux, Hugues; Marhas, Kuljeet; Messenger, Keiko; Schwandt, Craig S.; See, Thomas H.; Snead, Christopher; Stadermann, Frank J.; Stephan, Thomas; Stroud, Rhonda; Teslich, Nick; Trigo-Rodriguez, Josep M.; Tuzzolino, A. J.; Troadec, David; Tsou, Peter; Warren, Jack; Westphal, Andrew; Wozniakiewicz, Penelope; Wright, Ian and Zinner, Ernst (2006). Impact features on Stardust: implications for comet 81P/Wild 2 dust. Science, 314(5806) pp. 1716–1719.

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Particles emanating from comet 81P/Wild 2 collided with the Stardust spacecraft at 6.1 kilometers per second, producing hypervelocity impact features on the collector surfaces that were returned to Earth. The morphologies of these surprisingly diverse features were created by particles varying from dense mineral grains to loosely bound, polymineralic aggregates ranging from tens of nanometers to hundreds of micrometers in size. The cumulative size distribution of Wild 2 dust is shallower than that of comet Halley, yet steeper than that of comet Grigg-Skjellerup.

Item Type: Journal Article
ISSN: 0036-8075
Academic Unit/Department: Faculty of Science, Technology, Engineering and Mathematics (STEM) > Physical Sciences
Faculty of Science, Technology, Engineering and Mathematics (STEM)
Interdisciplinary Research Centre: Centre for Earth, Planetary, Space and Astronomical Research (CEPSAR)
Item ID: 7909
Depositing User: Kyra Proctor
Date Deposited: 06 Jun 2007
Last Modified: 17 Nov 2016 11:08
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