Computer Science
Scientific paper
Feb 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008m%26ps...43..161l&link_type=abstract
Meteoritics & Planetary Science, vol. 43, Issue 1, p.161-185
Computer Science
9
Tof-Sims, Stardust Mission, Cometary Dust
Scientific paper
Impact residues of cometary particles on aluminum foils from the Stardust mission were investigated with TOF-SIMS for their elemental and organic composition. The residual matter from comet 81P/Wild 2 shows a wide compositional range, from nearly monomineralic grains to polymict aggregates. Despite the comparably small analyzed sample volume, the average element composition of the investigated residues is similar to bulk CI chondritic values. Analysis of organic components in impact residues is complicated, due to fragmentation and alteration of the compounds during the impact process and by the presence of contaminants on the aluminum foils. Nevertheless, polycyclic aromatic hydrocarbons (PAHs) that are unambiguously associated with the impact residues were observed, and thus are most likely of cometary origin.
Flynn George James
Hörz Fred
Kearsley Anton T.
Leitner Jesse
Sandford Scott A.
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