Discovery of non-random spatial distribution of impacts in the Stardust cometary collector

Westphal, Andrew J. and Bastien, Ron and Borg, Janet and Bridges, John C. and Brownlee, Donald E. and Burchell, Mark J. and Cheng, Andrew F. and Clark, Benton C. and Djouadi, Zahia and Floss, Christine and Franchi, Ian A. and Gainsforth, Zack and Graham, Giles A. and Green, Simon F. and Heck, Philipp and Horanyi, Mihaly and Hoppe, Peter and Horz, Friedrich and Huth, Joachim and Kearsley, Anton T. and Leroux, Hugues and Marhas, Kuljeet and Nakamura-Messenger, Keiko and Sandford, Scott A. and See, Thomas A. and Stadermann, Frank J. and Teslich, Nicholas and Tsitrin, Samuel and Warren, Jack and Wozniakiewicz, Penelope J. and Zolensky, Michael E. (2008) Discovery of non-random spatial distribution of impacts in the Stardust cometary collector. Meteoritics & Planetary Science, 43 (1-2). pp. 415-429. ISSN 1086-9379. (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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We report the discovery that impacts in the Stardust cometary collector are not distributed randomly in the collecting media, but appear to be clustered on scales smaller than similar to 10 cm. We also report the discovery of at least two populations of oblique tracks. We evaluate several hypotheses that could explain the observations. No hypothesis is consistent with all the observations, but the preponderance of evidence points toward at least one impact on the central Whipple shield of the spacecraft as the origin of both clustering and low-angle oblique tracks. High-angle oblique tracks unambiguously originate from a non-cometary impact on the spacecraft bus just forward of the collector.

Item Type: Article
Subjects: Q Science
Divisions: Faculties > Science Technology and Medical Studies > School of Physical Sciences
Depositing User: Louise Dorman
Date Deposited: 20 Mar 2009 13:50
Last Modified: 30 Apr 2014 11:50
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