Impact Features on Stardust: Implications for Comet 81P/Wild 2 Dust-Reference-Cited by-同舟云学术

Impact Features on Stardust: Implications for Comet 81P/Wild 2 Dust

Published:2006-12-15 Issue:5806 Volume:314 Page:1716-1719
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Hörz Friedrich¹²³⁴⁵,Bastien Ron¹²³⁴⁵,Borg Janet¹²³⁴⁵,Bradley John P.¹²³⁴⁵,Bridges John C.¹²³⁴⁵,Brownlee Donald E.¹²³⁴⁵,Burchell Mark J.¹²³⁴⁵,Chi Miaofang¹²³⁴⁵,Cintala Mark J.¹²³⁴⁵,Dai Zu Rong¹²³⁴⁵,Djouadi Zahia¹²³⁴⁵,Dominguez Gerardo¹²³⁴⁵,Economou Thanasis E.¹²³⁴⁵,Fairey Sam A. J.¹²³⁴⁵,Floss Christine¹²³⁴⁵,Franchi Ian A.¹²³⁴⁵,Graham Giles A.¹²³⁴⁵,Green Simon F.¹²³⁴⁵,Heck Philipp¹²³⁴⁵,Hoppe Peter¹²³⁴⁵,Huth Joachim¹²³⁴⁵,Ishii Hope¹²³⁴⁵,Kearsley Anton T.¹²³⁴⁵,Kissel Jochen¹²³⁴⁵,Leitner Jan¹²³⁴⁵,Leroux Hugues¹²³⁴⁵,Marhas Kuljeet¹²³⁴⁵,Messenger Keiko¹²³⁴⁵,Schwandt Craig S.¹²³⁴⁵,See Thomas H.¹²³⁴⁵,Snead Christopher¹²³⁴⁵,Stadermann Frank J.¹²³⁴⁵,Stephan Thomas¹²³⁴⁵,Stroud Rhonda¹²³⁴⁵,Teslich Nick¹²³⁴⁵,Trigo-Rodríguez Josep M.¹²³⁴⁵,Tuzzolino A. J.¹²³⁴⁵,Troadec David¹²³⁴⁵,Tsou Peter¹²³⁴⁵,Warren Jack¹²³⁴⁵,Westphal Andrew¹²³⁴⁵,Wozniakiewicz Penelope¹²³⁴⁵,Wright Ian¹²³⁴⁵,Zinner Ernst¹²³⁴⁵

Affiliation:

1. Astromaterials Research and Exploration Science, NASA Johnson Space Center, Houston, TX 77058, USA.

2. Engineering Science Contract Group, NASA Johnson Space Center, Houston, TX 77058, USA.

3. Institut Astrophysique Spatiale, 91405 Orsay Cedex, France.

4. Institute for Geophysics and Planetary Physics, Lawrence Livermore National Laboratory, Livermore, CA 94550, USA.

5. Planetary and Space Sciences Research Institute, The Open University, Walton Hall, Milton Keynes MK7 6AA, UK.

Abstract

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.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

Reference24 articles.

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