Stardust Interstellar Preliminary Examination XI: Identification and elemental analysis of impact craters on Al foils from the Stardust Interstellar Dust Collector
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...A preliminary examination of the aerogel tiles on the interstellar side of the collector led to an identification of three candidate interstellar dust (ISD) particles (Westphal et al. 2014), and the examination of the aluminum foils resulted in four possible ISD impact craters (Stroud et al. 2014)....
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...…2014); Sterken et al. (2014) predicted dust flux and trajectories based on Stardust flight information and dust propagation models; finally, a parallel ISPE effort to search and analyze impact craters in the Al foils, which separated aerogel tiles in the SIDC, is described by Stroud et al. (2014)....
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...(Note that, in contrast, electron microscopy was a key ISPE technique for analysis of impact features in Al foils; Stroud et al. 2014.)...
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"Stardust Interstellar Preliminary E..." refers background or methods in this paper
...…(Table 1) on the two foils with candidate IS craters (1061N,1: 0.26– 11 cm 2; 1044N,1: 2.6–12 cm 2) is in statistical agreement with the average secondary crater density of 1.6–4.4 cm 2 within 1r uncertainty (Gehrels 1986), taking into account the random fluctuations in the sparse statistics....
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...4 cm 2 within 1r uncertainty (Gehrels 1986), taking into account the random fluctuations in the sparse statistics....
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...The 1r confidence range of secondary crater areal density is calculated as the 1r confidence interval (Gehrels 1986) of the number of secondary...
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...Whereas the successful capture of Wild 2 grains was readily apparent from the first direct visual observations of the cometary collector tray (Brownlee et al. 2006), achieving a reasonable level of confidence that detectable interstellar grains were captured in the ISD collector tray has required a…...
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