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

被引：278

作者：

Hoerz, Friedrich ^{[1
]}

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

Dominguez, 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

Zinner, Ernst

机构：

[1] NASA, Lyndon B Johnson Space Ctr, Engn Sci Contract Grp, Houston, TX 77058 USA

[2] Inst Astrophys Spatiale, F-91405 Orsay, France

[3] Lawrence Livermore Natl Lab, Inst Geophys & Planetary Phys, Livermore, CA 94550 USA

[4] Open Univ, Planetary & Space Sci Res Inst, Milton Keynes MK7 6AA, Bucks, England

[5] Univ Washington, Dept Astron, Seattle, WA 98195 USA

[6] Univ Kent, Ctr Astrophys & Planetary Sci, Canterbury CT2 7NH, Kent, England

[7] Univ Calif San Diego, Dept Chem & Biochem, La Jolla, CA 92093 USA

[8] Univ Chicago, Enrico Fermi Inst, Lab Astrophys & Space Res, Chicago, IL 60637 USA

[9] Washington Univ, Space Sci Lab, St Louis, MO 63160 USA

[10] Max Planck Inst Chem, Particle Chem Dept, D-55020 Mainz, Germany

[11] Nat Hist Museum, Dept Mineral, London SW7 5BD, England

[12] Max Planck Inst Solar Syst Res, D-37191 Katlenburg Lindau, Germany

[13] Univ Munster, Inst Planetol, D-48149 Munster, Germany

[14] Univ Lille, Lab Struct & Proprietes Etat Solide, F-59655 Villeneuve Dascq, France

[15] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA

[16] USN, Res Lab, Washington, DC 20375 USA

[17] CSIC, Inst Estudis Espacials Catalunya, Inst Space Sci, Barcelona 08193, Spain

[18] Inst Estudis Espacials Catalunya, Barcelona 08034, Spain

[19] Univ Lille, Inst Electron Microelectron & Nanotechnol, F-59655 Villeneuve Dascq, France

[20] CALTECH, Jet Prop Lab, Pasadena, CA 91109 USA

来源：

SCIENCE | 2006年 / 314卷 / 5806期

关键词：

D O I：

10.1126/science.1135705

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

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.

引用

页码：1716 / 1719

页数：4

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