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000293202 1001_ $$0P:(DE-HGF)0$$aCody, George D.$$b0
000293202 245__ $$aQuantitative organic and light-element analysis of comet 81P/Wild 2 particles using C-, N-, and O-μ-XANES
000293202 260__ $$aHoboken, NJ$$bWiley-Blackwell$$c2008
000293202 3367_ $$00$$2EndNote$$aJournal Article
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000293202 520__ $$aSynchrotron-based soft X-ray micro-analysis was performed on particles extracted fromthe Stardust aerogel collector in order to obtain detailed organic functional group information on anyorganic solids captured as part of the Principal Examination suite of analyses for samples from comet81P/Wild 2. It is observed that cometary organic carbon captured in aerogel is present in a number ofdifferent manifestations and often intimately associated with silicates. Carbon X-ray absorption nearedge structure (XANES) spectra reveal considerable chemical complexity in all of the organicparticles studied so far. Universally, the comet 81P/Wild 2 organic particles contain lowconcentrations of aromatic and/or olefinic carbon relative to aliphatic and heteroatom-containingfunctional groups, e.g., amide, carboxyl, and alcohol/ethers. N-XANES confirms the presence andassignments of these functional groups. In general, the XANES data record considerable chemicalcomplexity across the range of organic samples currently analyzed. The atomic ratios, N/C and O/C,derived from XANES data reveal a wide range in heteroatom content; in all cases these elementalratios are higher than that of primitive meteoritic organic matter. The wide range in chemistry, bothin elemental abundances and specific organic functional groups, suggests that the comet 81P/Wild 2organic solids may have multiple origins.
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000293202 7001_ $$0P:(DE-HGF)0$$aAde, Harald$$b1
000293202 7001_ $$0P:(DE-HGF)0$$aAlexander, M. O'D.$$b2
000293202 7001_ $$0P:(DE-HGF)0$$aAraki, Tohru$$b3
000293202 7001_ $$0P:(DE-HGF)0$$aButterworth, Anna$$b4
000293202 7001_ $$0P:(DE-H253)PIP1011659$$aFleckenstein, Holger$$b5
000293202 7001_ $$0P:(DE-HGF)0$$aFlynn, George$$b6
000293202 7001_ $$0P:(DE-HGF)0$$aGilles, Mary K.$$b7
000293202 7001_ $$0P:(DE-H253)PIP1018246$$aJacobsen, Chris$$b8
000293202 7001_ $$0P:(DE-HGF)0$$aKilcoyne, A. L. D.$$b9
000293202 7001_ $$0P:(DE-HGF)0$$aMessenger, Keiko$$b10
000293202 7001_ $$0P:(DE-HGF)0$$aSandford, Scott A.$$b11
000293202 7001_ $$0P:(DE-HGF)0$$aTyliszczak, Tolek$$b12
000293202 7001_ $$0P:(DE-HGF)0$$aWestphal, Andrew J.$$b13
000293202 7001_ $$0P:(DE-H253)PIP1024290$$aWirick, Sue$$b14
000293202 7001_ $$0P:(DE-HGF)0$$aYabuta, Hikaru$$b15
000293202 773__ $$0PERI:(DE-600)2011097-2$$a10.1111/j.1945-5100.2008.tb00627.x$$gVol. 43, no. 1-2, p. 353 - 365$$n1-2$$p353 - 365$$tMeteoritics & planetary science$$v43$$x1945-5100$$y2008
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