Carbonaceous dust grains seen in the first billion years of cosmic time
Nature, 2023 Abstract Large dust reservoirs (up to approximately 10 8 M ⊙ ) have been detected 1–3 in galaxies out to redshift z ≃ 8, when the age of the Universe was
Witstok, Joris +41 more
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Thermal fluctuations and nanoscale effects in the nucleation of carbonaceous dust grains [PDF]
Monthly Notices of the Royal Astronomical Society, 2010 10 pages, submitted to MNRAS, comments ...
Adam C. Keith, Davide Lazzati
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THE 6 μm FEATURE AS A TRACER OF ALIPHATIC COMPONENTS OF INTERSTELLAR CARBONACEOUS GRAINS [PDF]
The Astrophysical Journal, 2016 ABSTRACT An unidentified infrared emission (UIE) feature at 6.0 μm is detected in a number of astronomical sources showing the UIE bands. In contrast to the previous suggestion that this band is due to C=O vibrational modes, we suggest that the 6.0 μm feature arises from olefinic double-bond functional groups.
Chih-Hao Hsia 夏志浩 +3 more
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Collisions between carbonaceous grains in the interstellar medium [PDF]
Astronomy & Astrophysics, 2004 9 pages, 11 figures, in press in Astronomy and ...
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Presolar grains in primitive ungrouped carbonaceous chondrite Northwest Africa 5958 [PDF]
Meteoritics & Planetary Science, 2019 AbstractWe report a correlated NanoSIMS‐transmission electron microscopy study of the ungrouped carbonaceous chondrite Northwest Africa (NWA) 5958. We identified 10 presolar SiC grains, 2 likely presolar graphite grains, and 20 presolar silicate and/or oxide grains in NWA 5958. We suggest a slight modification of the commonly used classification system
Larry R. Nittler +3 more
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Heating experiments of carbon grains: Implication for the origin of interstellar dust [PDF]
, 2003 P(論文)Amorphous carbonaceous grains produced in a methane gas atmosphere were analyzed by high resolution transmission electron microscope (HRTEM).
Sato,Takeshi +2 more
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Water Kefir Grains—Microbial Biomass Source for Carbonaceous Materials Used as Sulfur-Host Cathode in Li-S Batteries [PDF]
, 2022 Nowadays, the use of biomass to produce cathode materials for lithium–sulfur (Li-S) batteries is an excellent alternative due to its numerous advantages.
Alvaro Y. Tesio +10 more
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Reduction of Lead Oxide by Fine-Grained Carbonaceous Materials
Archives of Metallurgy and Materials, 2019 As part of the presented work, tests were carried out to check the possibility of replacing of conventional reducers used in the lead pyrometallurgical processes by cheaper, but equally effective substitutes. For research of lead oxide reduction, the following fine-grained carbonaceous materials were used, ie anthracite dust and coal flotation ...
T. Matuła, G. Siwiec
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Motion of dust ejected from the surface of asteroid (101955) Bennu
Heliyon, 2020 From Jan. 6, 2019 to Feb. 18, 2019, OSIRIS-REx observed asteroid (101955) Bennu ejecting 11 plumes of dust, of which part is escaping and another part is re-captured by the asteroid.
Yu Jiang, Jürgen Schmidt
doaj +1 more source
Formation of CO2 Driven by Photochemistry of Water Ice Mixed with Carbon Grains
The Astrophysical Journal, 2023 We present results on photochemistry of carbon-grains/water-ice mixtures at temperatures from 10 to 150 K. Such a temperature range corresponds to the physical conditions found in molecular clouds, hot cores and corinos, protostellar envelopes, and ...
Alexey Potapov +3 more
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