Search Results - "QUIRICO, E"
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The abundance and stability of “water” in type 1 and 2 carbonaceous chondrites (CI, CM and CR)
Published in Geochimica et cosmochimica acta (15-07-2014)“…Carbonaceous chondrites record processes of aqueous alteration in the presence of hydrated and hydroxylated minerals, which could have provided a source of…”
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Transmission infrared spectra (2–25μm) of carbonaceous chondrites (CI, CM, CV–CK, CR, C2 ungrouped): Mineralogy, water, and asteroidal processes
Published in Icarus (New York, N.Y. 1962) (01-02-2014)“…•We have determined MIR absorption properties of 40 carbonaceous chondrites (CC).•Variability in the shape of the silicate features and intensity of 3-μm band…”
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What is controlling the reflectance spectra (0.35–150 µm) of hydrated (and dehydrated) carbonaceous chondrites?
Published in Icarus (New York, N.Y. 1962) (01-10-2018)“…•The 0.7 µm feature in hydrated carbonaceous chondrites correlates with water content.•Continuum reflectance is not related to carbon content but primary…”
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4
Formation of amino acids and nucleotide bases in a Titan atmosphere simulation experiment
Published in Astrobiology (01-09-2012)“…The discovery of large (>100 u) molecules in Titan's upper atmosphere has heightened astrobiological interest in this unique satellite. In particular, complex…”
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Mid-infrared study of the molecular structure variability of insoluble organic matter from primitive chondrites
Published in Icarus (New York, N.Y. 1962) (01-03-2013)“…► We present IR spectra of Insoluble Organic Matter (IOM) extracted from 14 meteorites. ► Our technological breakthrough grants access to very small sample…”
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The organic-rich surface of comet 67P/Churyumov-Gerasimenko as seen by VIRTIS/Rosetta
Published in Science (American Association for the Advancement of Science) (23-01-2015)“…The VIRTIS (Visible, Infrared and Thermal Imaging Spectrometer) instrument on board the Rosetta spacecraft has provided evidence of carbon-bearing compounds on…”
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Prevalence and nature of heating processes in CM and C2-ungrouped chondrites as revealed by insoluble organic matter
Published in Geochimica et cosmochimica acta (15-11-2018)“…Chondrites are exhumed from their parent bodies by impacts, which at the same time can result in heating and mechanical modification (compaction, deformation,…”
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Color, Composition, and Thermal Environment of Kuiper Belt Object (486958) Arrokoth
Published in Science (American Association for the Advancement of Science) (28-02-2020)“…The New Horizons spacecraft flew past the Kuiper Belt object (486958) Arrokoth (also known as 2014 MU69) in January 2019. Because of the great distance to the…”
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Cosmochemical implications of CONSERT permittivity characterization of 67P/CG
Published in Monthly notices of the Royal Astronomical Society (01-11-2016)“…Analysis of the propagation of the Comet Nucleus Sounding Experiment by Radiowave Transmission (CONSERT) signal throughout the small lobe of the 67P/CG nucleus…”
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Bidirectional reflectance spectroscopy of carbonaceous chondrites: Implications for water quantification and primary composition
Published in Icarus (New York, N.Y. 1962) (01-01-2016)“…•We measured bidirectional reflectance spectra of different group of carbonaceous chondrites.•We propose a method to quantify the water on asteroid…”
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Precursor and metamorphic condition effects on Raman spectra of poorly ordered carbonaceous matter in chondrites and coals
Published in Earth and planetary science letters (30-09-2009)“…Geothermometers based on Raman spectrometry of carbonaceous matter and covering a wide range of temperatures (100–650 °C) have been developed over recent…”
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Mineralogy, chemistry, and composition of organic compounds in the fresh carbonaceous chondrite Mukundpura: CM1 or CM2?
Published in Meteoritics & planetary science (01-07-2020)“…We present here several laboratory analyses performed on the freshly fallen Mukundpura CM chondrite. Results of infrared transmission spectroscopy,…”
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Exposed water ice on the nucleus of comet 67P/Churyumov–Gerasimenko
Published in Nature (London) (21-01-2016)“…Using infrared wavelengths, micrometre-sized water-ice grains have been identified on the nucleus (which is mostly coated in a dark material) of comet…”
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Physical state and distribution of materials at the surface of Pluto from New Horizons LEISA imaging spectrometer
Published in Icarus (New York, N.Y. 1962) (01-05-2017)“…•The analysis of the first couple of LEISA/New Horizons spectro-images is performed.•Qualitative distribution maps are obtained for N2, CH4, CO, H2O and the…”
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Determination of the petrologic type of CV3 chondrites by Raman spectroscopy of included organic matter
Published in Geochimica et cosmochimica acta (01-04-2006)“…This paper reports the first reliable quantitative determination of the thermal metamorphism grade of a series of nine CV3 chondrites: Allende, Axtell, Bali,…”
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Characterization of the organic matter and hydration state of Antarctic micrometeorites: A reservoir distinct from carbonaceous chondrites
Published in Icarus (New York, N.Y. 1962) (15-05-2018)“…•35 Antarctic micrometeorites (AMMs) studied in Raman and IR spectroscopies.•Identification of hydrated and carbon-enriched Fg-AMMs.•Organic and mineralogical…”
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Infrared detection of aliphatic organics on a cometary nucleus
Published in Nature astronomy (01-05-2020)“…The European Space Agency’s Rosetta mission 1 has acquired unprecedented measurements of the surface of the nucleus of comet 67P/Churyumov–Gerasimenko…”
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UltraCarbonaceous Antarctic micrometeorites, probing the Solar System beyond the nitrogen snow-line
Published in Icarus (New York, N.Y. 1962) (01-05-2013)“…• We investigate UltraCarbonaceous Antarctic micrometeorites composition. • They reveal a new N-rich organic matter from the Solar System. • This exceptional…”
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A Noachian source region for the “Black Beauty” meteorite, and a source lithology for Mars surface hydrated dust?
Published in Earth and planetary science letters (01-10-2015)“…The Martian surface is covered by a fine-layer of oxidized dust responsible for its red color in the visible spectral range (Bibring et al., 2006; Morris et…”
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Spectrophotometric characterization of the Philae landing site and surroundings with the Rosetta/OSIRIS cameras
Published in Monthly notices of the Royal Astronomical Society (11-10-2020)“…ABSTRACT We investigate Abydos, the final landing site of the Philae lander after its eventful landing from the Rosetta spacecraft on comet…”
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