Report - Mineralogy and petrology of comet 81P/Wild 2 nucleus samples

被引:573
作者
Zolensky, Michael E. [1 ]
Zega, Thomas J.
Yano, Hajime
Wirick, Sue
Westphal, Andrew J.
Weisberg, Mike K.
Weber, Iris
Warren, Jack L.
Velbel, Michael A.
Tsuchiyama, Akira
Tsou, Peter
Toppani, Alice
Tomioka, Naotaka
Tomeoka, Kazushige
Teslich, Nick
Taheri, Mitra
Susini, Jean
Stroud, Rhonda
Stephan, Thomas
Stadermann, Frank J.
Snead, Christopher J.
Simon, Steven B.
Simionovici, Alexandre
See, Thomas H.
Robert, Francois
Rietmeijer, Frans J. M.
Rao, William
Perronnet, Murielle C.
Papanastassiou, Dimitri A.
Okudaira, Kyoko
Ohsumi, Kazumasa
Ohnishi, Ichiro
Nakamura-Messenger, Keiko
Nakamura, Tomoki
Mostefaoui, Smail
Mikouchi, Takashi
Meibom, Anders
Matrajt, Graciela
Marcus, Matthew A.
Leroux, Hugues
Lemelle, Laurence
Le, Loan
Lanzirotti, Antonio
Langenhorst, Falko
Krot, Alexander N.
Keller, Lindsay P.
Kearsley, Anton T.
Joswiak, David
Jacob, Damien
Ishii, Hope
机构
[1] NASA, Lyndon B Johnson Space Ctr, Houston, TX 77058 USA
[2] USN, Res Lab, Washington, DC 20375 USA
[3] JAXA ISAS, Kanagawa 2298510, Japan
[4] Brookhaven Natl Lab, Natl Synchrotron Light Source, Upton, NY 11973 USA
[5] Univ Calif Berkeley, Space Sci Lab, Berkeley, CA 94720 USA
[6] CUNY, Kingsborough Community Coll, Dept Phys Sci, Brooklyn, NY 11235 USA
[7] Univ Munster, Inst Planetol, D-48149 Munster, Germany
[8] JAcobs Scerdrup, Engn Sci Contract Grp, Houston, TX 77058 USA
[9] Michigan State Univ, Dept Geol Sci, E Lansing, MI 48824 USA
[10] Osaka Univ, Dept Earth & Space Sci, Toyonaka, Osaka 5600043, Japan
[11] CALTECH, Jet Prop Lab, Pasadena, CA 91109 USA
[12] Lawrence Livermore Natl Lab, Inst Geophys & Planetary Phys, Livermore, CA 94550 USA
[13] Ctr Spectrometrie Nucl & Spectrometrie Masse, F-91405 Orsay, France
[14] Kobe Univ, Fac Sci, Dept Earth & Planetary Sci, Nada Ku, Kobe, Hyogo 6578501, Japan
[15] European Synchrotron Radiat Facil, F-38043 Grenoble, France
[16] Washington Univ, Dept Phys, St Louis, MO 63130 USA
[17] Univ Chicago, Dept Geophys Sci, Chicago, IL 60637 USA
[18] Ecole Normale Super Lyon, Lab Sci Terre, F-69007 Lyon, France
[19] ARES JSC, Engn Sci Contract Barrios Technol, Houston, TX 77258 USA
[20] Museum Natl Hist Nat, Lab Etude Mat Extraterr, LEME, F-75005 Paris, France
[21] Univ New Mexico, Dept Earth & Planetary Sci, Albuquerque, NM 87131 USA
[22] Savannah River Ecol Lab, Aiken, SC 29801 USA
[23] CALTECH, Jet Prop Lab, Div Sci, Pasadena, CA 91109 USA
[24] Inst Mat Struct Sci, Tsukuba, Ibaraki 305, Japan
[25] Kyushu Univ, Fac Sci, Dept Earth & Planetary Sci, Fukuoka 8128581, Japan
[26] Univ Tokyo, Dept Earth & Planetary Sci, Bunkyo Ku, Tokyo 1130033, Japan
[27] Univ Washington, Dept Astron, Seattle, WA 98195 USA
[28] Univ Calif Berkeley, Lawrence Berkeley Lab, Adv Light Source, Berkeley, CA 94720 USA
[29] Univ Sci & Tech Lille, Lab Struct & Proprietes Etat Solide, F-59655 Villeneuve Dascq, France
[30] Univ Chicago, Consortium Adv Radiat Source, Chicago, IL 60637 USA
[31] Univ Jena, Inst Geosci, D-07749 Jena, Germany
[32] Univ Hawaii, Hawaii Inst Geophys & Planetol, Honolulu, HI 96822 USA
[33] Nat Hist Museum, Impact & Astromat Res Ctr, Dept Mineral, London SW7 5BD, England
[34] Case Western Reserve Univ, Dept Geol, Cleveland, OH 44106 USA
[35] Univ Hyogo, Grad Sch Life Sci, Kamigori, Hyogo 6781297, Japan
[36] Univ Jena, Inst Geosci, D-07749 Jena, Germany
[37] Nat Hist Museum, Impact & Astromat Res Ctr, Dept Mineral, London SW7 5BD, England
[38] Case Western Reserve Univ, Dept Geol, Cleveland, OH 44106 USA
[39] Univ Hyogo, Grad Sch Life Sci, Kamigori, Hyogo 6781297, Japan
[40] Univ Chicago, Enrico Fermi Inst, Chicago, IL 60637 USA
[41] US Geol Survey, Reston, VA 20192 USA
[42] Univ London Imperial Coll Sci Technol & Med, Impact & Astromat Res Ctr, Dept Earth Sci & Engn, London SW7 2AZ, England
[43] SUNY Coll Plattsburgh, Dept Phys, Plattsburgh, NY 12901 USA
[44] Amer Museum Nat Hist, Dept Earth & Planetary Sci, New York, NY 10024 USA
[45] Lockheed Martin Astronaut, Denver, CO 80201 USA
[46] Open Univ, Planetary & Space Sci Res Inst, Milton Keynes MK7 6AA, Bucks, England
[47] Stanford Linear Accelerator Ctr, Menlo Pk, CA 94025 USA
关键词
D O I
10.1126/science.1135842
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
The bulk of the comet 81P/Wild 2 ( hereafter Wild 2) samples returned to Earth by the Stardust spacecraft appear to be weakly constructed mixtures of nanometer-scale grains, with occasional much larger ( over 1 micrometer) ferromagnesian silicates, Fe-Ni sulfides, Fe-Ni metal, and accessory phases. The very wide range of olivine and low-Ca pyroxene compositions in comet Wild 2 requires a wide range of formation conditions, probably reflecting very different formation locations in the protoplanetary disk. The restricted compositional ranges of Fe-Ni sulfides, the wide range for silicates, and the absence of hydrous phases indicate that comet Wild 2 experienced little or no aqueous alteration. Less abundant Wild 2 materials include a refractory particle, whose presence appears to require radial transport in the early protoplanetary disk.
引用
收藏
页码:1735 / 1739
页数:5
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