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タイトルStardust Interstellar Foils I1061N,1 and I1031N, 1: First Results from Automated Crater Searches and Future Analytical Possibilities
本文(外部サイト)http://hdl.handle.net/2060/20110007047
著者(英)Doll, R.; Allen, C.; Grun, E.; Bridges, J; Cloetens, P.; Gainsforth, Z.; Burchell, M.; Bajit, S.; Borg, J.; Hoppe, P; Brownlee, D. E.; Burghammer, M.; Hillier, J. K.; Heck, P. R.; Flynn, G. J.; Floss, C.; Zolensky, M. E.; Frank, D.; Brenker, F.; Davis, A. M.; Bechtel, H. A.; Butterworth, A. L.
著者所属(英)NASA Johnson Space Center
発行日2011-03-07
言語eng
内容記述In addition to samples from comet 81P/Wild 2, NASA's Stardust mission may have returned the first samples of contemporary interstellar dust. The interstellar tray collected particles for 229 days during two exposures prior to the spacecraft encounter with Wild 2 and tracked the interstellar dust stream for all but 34 days of that time. In addition to aerogel capture cells, the tray contains Al foils that make up approx.15% of the total exposed collection surface . Interstellar dust fluxes are poorly constrained, but suggest that on the order of 12-15 particles may have impacted the total exposed foil area of 15,300 sq mm; 2/3 of these are estimated to be less than approx.1 micrometer in size . Examination of the interstellar foils to locate the small rare craters expected from these impacts is proceeding under the auspices of the Stardust Interstellar Preliminary Examination (ISPE) plan. Below we outline the automated high-resolution imaging protocol we have established for this work and report results obtained from two interstellar foils.
NASA分類Astronomy
レポートNOJSC-CN-22694
権利Copyright, Distribution as joint owner in the copyright


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