Organics captured from comet 81P/Wild 2 by the Stardust spacecraft

被引：462

作者：

Sandford, Scott A. ^{[1
]}

Aleon, Jerome

Alexander, Conel M. O'D.

Araki, Tohru

Bajt, Sasa

Baratta, Giuseppe A.

Borg, Janet

Bradley, John P.

Brownlee, Donald E.

Brucato, John R.

Burchell, Mark J.

Busemann, Henner

Butterworth, Anna

Clemett, Simon J.

Cody, George

Colangeli, Luigi

Cooper, George

D'Hendecourt, Louis

Djouadi, Zahia

Dworkin, Jason P.

Ferrini, Gianluca

Fleckenstein, Holger

Flynn, George J.

Franchi, Ian A.

Fries, Marc

Gilles, Mary K.

Glavin, Daniel P.

Gounelle, Matthieu

Grossemy, Faustine

Jacobsen, Chris

Keller, Lindsay P.

Kilcoyne, A. L. David

Leitner, Jan

Matrajt, Graciela

Meibom, Anders

Mennella, Vito

Mostefaoui, Smail

Nittler, Larry R.

Palumbo, Maria E.

Papanastassiou, Dimitri A.

Robert, Francois

Rotundi, Alessandra

Snead, Christopher J.

Spencer, Maegan K.

Stadermann, Frank J.

Steele, Andrew

Stephan, Thomas

Tsou, Peter

Tyliszczak, Tolek

Westphal, Andrew J.

机构：

[1] NASA, Ames Res Ctr, Astrophys Branch, Moffett Field, CA 94035 USA

[2] Lawrence Livermore Natl Lab, Glenn I Seaborg Inst, Livermore, CA 94550 USA

[3] Carnegie Inst Sci, Dept Terr Magnetism, Washington, DC 20015 USA

[4] Ctr Rech Petrog & Geochim, F-54501 Vandoeuvre Les Nancy, France

[5] N Carolina State Univ, Dept Phys, Raleigh, NC 27695 USA

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

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

[8] Osserv Astrofis Catania, Ist Nazl Astrofis, I-95123 Catania, Italy

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

[10] Osserv Astron Capodimonte, INAF, I-80131 Naples, Italy

[11] Univ Kent, Sch Phys Sci, Canterbury CT2 7NH, Kent, England

[12] Univ Calif Berkeley, Space Sci Lab, Berkeley, CA 94720 USA

[13] NASA, Lyndon B Johnson Space Ctr, Expense Reduct Consulting Inc, Houston, TX 77058 USA

[14] Carnegie Inst Sci, Geophys Lab, Washington, DC 20015 USA

[15] NASA, Ames Res Ctr, Exobiol Branch, Moffett Field, CA 94035 USA

[16] NASA, Goddard Space Flight Ctr, Goddard Ctr Astrobiol, Greenbelt, MD 20771 USA

[17] SUNY Stony Brook, Dept Phys & Astron, Stony Brook, NY 11794 USA

[18] SUNY Coll Plattsburgh, Dept Phys, Plattsburgh, NY 12901 USA

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

[20] Univ Calif Berkeley, Div Chem Sci, Berkeley, CA 94720 USA

[21] Museum Natl Hist Nat, Lab Etud Mat Extraterr, Paris, France

[22] Univ Calif Berkeley, Lawrence Berkeley Lab, Adv Light Source, Berkeley, CA 94720 USA

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

[24] CALTECH, Jet Prop Lab, Div Sci, Pasadena, CA 91109 USA

[25] Univ Naples Parthenope, Dipartimento Sci Applicate, I-80133 Naples, Italy

[26] Stanford Univ, Dept Chem, Stanford, CA 94305 USA

[27] Washington Univ, Dept Phys, St Louis, MO 63130 USA

[28] Washington Univ, McDonnell Ctr Space Sci, St Louis, MO 63130 USA

[29] Washington Univ, Dept Earth & Planetary Sci, St Louis, MO 63130 USA

来源：

SCIENCE | 2006年 / 314卷 / 5806期

关键词：

D O I：

10.1126/science.1135841

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：

Organics found in comet 81P/ Wild 2 samples show a heterogeneous and unequilibrated distribution in abundance and composition. Some organics are similar, but not identical, to those in interplanetary dust particles and carbonaceous meteorites. A class of aromatic-poor organic material is also present. The organics are rich in oxygen and nitrogen compared with meteoritic organics. Aromatic compounds are present, but the samples tend to be relatively poorer in aromatics than are meteorites and interplanetary dust particles. The presence of deuterium and nitrogen-15 excesses suggest that some organics have an interstellar/ protostellar heritage. Although the variable extent of modification of these materials by impact capture is not yet fully constrained, a diverse suite of organic compounds is present and identifiable within the returned samples.

引用

页码：1720 / 1724

页数：5

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