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- W2072634706 abstract "Cometary material and pristine interplanetary dust particles (IDPs) best resemble the unaltered components from which our solar system was built because they have remained largely unaltered in a cold undisturbed environment since accretion in the outer protoplanetary disk. IDPs might supply more primitive assemblages for laboratory analysis than Stardust samples from comet 81P/Wild 2 but their individual provenances are typically unknown. We speculate that some IDPs collected by NASA in April 2003 may be associated with comet 26P/Grigg–Skjellerup because their particularly pristine character coincides with the collection period that was predicted to show an enhanced flux of particles from this Jupiter-family comet. Some IDPs from this collection contain the most primitive assembly of interstellar matter found to date including an unusually high abundance of presolar grains and very isotopically anomalous and disordered organic matter as well as fine-grained carbonates and an amphibole associated with a GEMS-like object (glass with embedded metals and sulfides) that potentially imply formation in a nebular rather than planetary environment. The two most primitive IDPs may contain assemblages of molecular cloud material at the percent level which is supported by the presence of four rare 17O-depleted presolar silicate grains possibly of supernova(e) origin within one ~ 70 μm2-sized IDP and the close association of a Group 1 Mg-rich olivine from a low-mass red giant star with a carbonaceous nano-globule of potentially interstellar origin. Our study together with observations of comet 9P/Tempel 1 during the Deep Impact experiment and 81P/Wild 2 dust analyses reveal some compositional variations and many similarities among three Jupiter-family comets. Specifically carbonates and primitive organic matter or amorphous carbon were widespread in the comet-forming regions of the outer protoplanetary disk and not all comets contain as much inner solar system material as has been inferred for comet 81P/Wild 2. The bulk and hotspot hydrogen and nitrogen isotopic anomalies as well as the carbon Raman characteristics of the organic matter in IDPs and the most primitive meteorites are remarkably similar. This implies that the same mixture of molecular cloud material had been transported inward into the meteorite-forming regions of the solar system." @default.
- W2072634706 created "2016-06-24" @default.
- W2072634706 creator A5015173450 @default.
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- W2072634706 date "2009-10-30" @default.
- W2072634706 modified "2023-10-02" @default.
- W2072634706 title "Ultra-primitive interplanetary dust particles from the comet 26P/Grigg–Skjellerup dust stream collection" @default.
- W2072634706 cites W147648604 @default.
- W2072634706 cites W1486534194 @default.
- W2072634706 cites W1491969992 @default.
- W2072634706 cites W1500685572 @default.
- W2072634706 cites W1525575583 @default.
- W2072634706 cites W1558983682 @default.
- W2072634706 cites W1595502742 @default.
- W2072634706 cites W1623334690 @default.
- W2072634706 cites W1666895215 @default.
- W2072634706 cites W1752686177 @default.
- W2072634706 cites W1868969070 @default.
- W2072634706 cites W1965880139 @default.
- W2072634706 cites W1971302485 @default.
- W2072634706 cites W1972124914 @default.
- W2072634706 cites W1979417376 @default.
- W2072634706 cites W1983674992 @default.
- W2072634706 cites W1983788654 @default.
- W2072634706 cites W1989622517 @default.
- W2072634706 cites W1993415811 @default.
- W2072634706 cites W1994019332 @default.
- W2072634706 cites W1994791841 @default.
- W2072634706 cites W1995361013 @default.
- W2072634706 cites W1998967804 @default.
- W2072634706 cites W2002117316 @default.
- W2072634706 cites W2002326032 @default.
- W2072634706 cites W2004377861 @default.
- W2072634706 cites W200545516 @default.
- W2072634706 cites W2006753204 @default.
- W2072634706 cites W2016327955 @default.
- W2072634706 cites W2016735403 @default.
- W2072634706 cites W2018533264 @default.
- W2072634706 cites W2019386802 @default.
- W2072634706 cites W2026134512 @default.
- W2072634706 cites W2026162716 @default.
- W2072634706 cites W2027362720 @default.
- W2072634706 cites W2029981682 @default.
- W2072634706 cites W2030484599 @default.
- W2072634706 cites W2031108369 @default.
- W2072634706 cites W2032174352 @default.
- W2072634706 cites W2032202700 @default.
- W2072634706 cites W2032903804 @default.
- W2072634706 cites W2033688233 @default.
- W2072634706 cites W2033785212 @default.
- W2072634706 cites W2038091062 @default.
- W2072634706 cites W2049075701 @default.
- W2072634706 cites W2055530733 @default.
- W2072634706 cites W2059522784 @default.
- W2072634706 cites W2060815913 @default.
- W2072634706 cites W2060948076 @default.
- W2072634706 cites W2064097641 @default.
- W2072634706 cites W2066563253 @default.
- W2072634706 cites W2071506980 @default.
- W2072634706 cites W2077554378 @default.
- W2072634706 cites W2079072105 @default.
- W2072634706 cites W2079091900 @default.
- W2072634706 cites W2081053271 @default.
- W2072634706 cites W2081316201 @default.
- W2072634706 cites W2085365775 @default.
- W2072634706 cites W2086824162 @default.
- W2072634706 cites W2090361900 @default.
- W2072634706 cites W2090502428 @default.
- W2072634706 cites W2090512035 @default.
- W2072634706 cites W2119907847 @default.
- W2072634706 cites W2121586404 @default.
- W2072634706 cites W2127393091 @default.
- W2072634706 cites W2127565670 @default.
- W2072634706 cites W2129435148 @default.
- W2072634706 cites W2131549631 @default.
- W2072634706 cites W2133456387 @default.
- W2072634706 cites W2138913699 @default.
- W2072634706 cites W2140952902 @default.
- W2072634706 cites W2145598654 @default.
- W2072634706 cites W2146348165 @default.
- W2072634706 cites W2148930433 @default.
- W2072634706 cites W2153891637 @default.
- W2072634706 cites W2160410763 @default.
- W2072634706 cites W2166258821 @default.
- W2072634706 cites W2169867019 @default.
- W2072634706 cites W2256212484 @default.
- W2072634706 cites W2991625208 @default.
- W2072634706 cites W2995282455 @default.
- W2072634706 cites W2997477317 @default.
- W2072634706 cites W2998004524 @default.
- W2072634706 cites W3004201661 @default.
- W2072634706 cites W3011512111 @default.