Search Results - "Jessberger, Elmar"
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Aggregate dust particles at comet 67P/Churyumov–Gerasimenko
Published in Nature (London) (01-09-2016)“…dust particles at comet 67P/Churyumov–Gerasimenko confirm that the particles are aggregates of smaller, elongated grains even at the smallest sizes examined…”
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Brecciation and chemical heterogeneities of CI chondrites
Published in Geochimica et cosmochimica acta (01-11-2006)“…Fragments in the size range from 40 μm to several hundred μm in the CI chondrites Orgueil, Ivuna, Alais, and Tonk show a wide range of chemical compositions…”
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Raman spectra of hydrous minerals investigated under various environmental conditions in preparation for planetary space missions
Published in Journal of Raman spectroscopy (01-11-2018)“…Raman spectrometers will be part of the scientific payload of the future lander missions to Mars, icy moons, and asteroids. Their primary task is the search…”
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Structure and thermal history of the H-chondrite parent asteroid revealed by thermochronometry
Published in Nature (London) (03-04-2003)“…Our Solar System formed ∼4.6 billion years ago from the collapse of a dense core inside an interstellar molecular cloud. The subsequent formation of solid…”
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Identification of Diamino Acids in the Murchison Meteorite
Published in Proceedings of the National Academy of Sciences - PNAS (22-06-2004)“…Amino acids identified in the Murchison chondritic meteorite by molecular and isotopic analysis are thought to have been delivered to the early Earth by…”
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Composition, Structure, and Size Distribution of Dust in the Local Interstellar Cloud
Published in The Astrophysical journal (20-01-2003)Get full text
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A combined ToF-SIMS and EMP/SEM study of a three-phase symplectite in the Los Angeles basaltic shergottite
Published in Meteoritics & planetary science (01-08-2009)“…— A rare three‐phase symplectite consisting of Ca‐rich pyroxene, Fe‐rich olivine, and a silica phase is frequently found rimming pyroxene in the Martian…”
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3-D elemental and isotopic composition of presolar silicon carbides
Published in Meteoritics & planetary science (01-08-2007)“…— Thirteen presolar silicon carbide grains—three of supernova (SN) origin and ten of asymptotic giant branch (AGB) star origin—were examined with…”
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Aspects of the major element composition of Halley's dust
Published in Nature (London) (21-04-1988)“…The chemical composition of the solid grains from comet Halley can be inferred from impact-ionization of time-of-flight mass spectrometry. Comet Halley is…”
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The distribution of mantle and atmospheric argon in oceanic basalt glasses
Published in Geochimica et cosmochimica acta (01-03-2003)“…Argon analyses by both high-resolution stepheating and stepcrushing of MORB and Loihi basalt glasses were performed to separate pristine mantle-derived Ar and…”
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L-chondrite asteroid breakup tied to Ordovician meteorite shower by multiple isochron 40Ar-39 Ar dating
Published in Meteoritics & planetary science (01-01-2007)“…— Radiochronometry of L chondritic meteorites yields a rough age estimate for a major collision in the asteroid belt about 500 Myr ago. Fossil meteorites from…”
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TOF-SIMS analysis of polycyclic aromatic hydrocarbons in Allan Hills 84001
Published in Meteoritics & planetary science (01-01-2003)“…— The presence of polycyclic aromatic hydrocarbons (PAHs) in the Martian meteorite Allan Hills 84001 (ALH 84001) was considered to be a major sign of ancient…”
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High-molecular-weight organic matter in the particles of comet 67P/Churyumov–Gerasimenko
Published in Nature (London) (06-10-2016)“…The COSIMA mass spectrometer on the Rosetta spacecraft has analysed the solid organic matter found in dust particles emitted by comet…”
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Elemental Abundances and Mass Densities of Dust and Gas in the Local Interstellar Cloud
Published in The Astrophysical journal (10-01-2003)Get full text
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Coeval ages of Australasian, Central American and Western Canadian tektites reveal multiple impacts 790 ka ago
Published in Geochimica et cosmochimica acta (01-04-2016)“…High resolution super(40)Ar- super(39)Ar step heating dating of australites and indochinites, representing a large area of the Australasian strewn field, and…”
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Aggregate dust particles at comet 67P/ChuryumovGerasimenko
Published in Nature (London) (01-09-2016)Get full text
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Shocked meteorites: Argon-40-argon-39 evidence for multiple impacts
Published in Meteoritics & planetary science (01-09-1997)“…— To contribute to the understanding of the impact history of asteroids, we performed a high‐resolution 40Ar‐39Ar study of ten moderately to highly shocked…”
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Coeval ages of Australasian, Central American and Western Canadian tektites reveal multiple impacts 790ka ago
Published in Geochimica et cosmochimica acta (01-04-2016)“…High resolution 40Ar–39Ar step heating dating of australites and indochinites, representing a large area of the Australasian strewn field, and more recently…”
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Rocky Cometary Particulates: Their Elemental, Isotopic and Mineralogical Ingredients
Published in Space science reviews (01-10-1999)“…The determination of the chemical composition of solid cometary dust particles was one of the prime objectives of the three missions to Comet Halley in 1986…”
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High-molecular-weight organic matter in the particles of comet 67P/ChuryumovGerasimenko
Published in Nature (London) (06-10-2016)Get full text
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