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• W3124549048 endingPage "237" @default.
• W3124549048 startingPage "205" @default.
• W3124549048 abstract "It was in ‘The Magellanic Cloud’ (1955) – a science fiction novel by Stanislaw Lem – that engineers travelling to another star noticed that their spacecraft for unknown reasons overheated. The cause had to be outside the spaceship, but obviously there was only emptiness, at least compared to terrestrial conditions. The space between the stars, the interstellar medium (ISM), however, is not completely empty and at the high speed of the spacecraft the cross-section with impacting particles, even from such a dilute environment, was found to be sufficient to cause an overheating. Today, 60 years later, the ISM has been studied in detail by astronomical observations, reproduced in dedicated laboratory experiments and simulated by complex astrochemical models. The space between the stars is, indeed, far from empty; it comprises gas, dust and ice and the molecules detected so far are both small (diatomics) and large (long carbon chains, PAHs and fullerenes), stable and reactive (radicals, ions, and excited molecules) evidencing an exotic and fascinating chemistry, taking place at low densities, low temperatures and experiencing intense radiation fields. Astrochemists explain the observed chemical complexity in space – so far 185 different molecules (not including isotopologues) have been identified – as the cumulative outcome of reactions in the gas phase and on icy dust grains. Gas phase models explain the observed abundances of a substantial part of the observed species, but fail to explain the number densities for stable molecules, as simple as water, methanol or acetonitrile – one of the most promising precursor species for the simplest amino acid glycine – as well as larger compounds such as glycolaldehyde, dimethylether and ethylene glycol. Evidence has been found that these and other complex species, including organic ones, form on icy dust grains that act as catalytic sites for molecule formation. It is here where particles ‘accrete, meet, and greet’ (i.e. freeze out, diffuse and react) upon energetic and non-energetic processing, such as irradiation by vacuum UV light, interaction with impacting particles (atoms, electrons and cosmic rays) or heating. This review paper summarises the state-of-the-art in laboratory based interstellar ice chemistry. The focus is on atom addition reactions, illustrating how water, carbon dioxide and methanol can form in the solid state at astronomically relevant temperatures, and also the formation of more complex species such as hydroxylamine, an important prebiotic molecule, and glycolaldehyde, the smallest sugar, is discussed. These reactions are particularly relevant during the ‘dark’ ages of star and planet formation, i.e. when the role of UV light is restricted. A quantitative characterization of such processes is only possible through dedicated laboratory studies, i.e. under full control of a large set of parameters such as temperature, atom-flux, and ice morphology. The resulting numbers, physical and chemical constants, e.g. barrier heights, reaction rates and branching ratios, provide information on the molecular processes at work and are needed as input for astrochemical models, in order to bridge the timescales typical for a laboratory setting to those needed to understand the evolutionary stages of the ISM. Details of the experiments as well as the astrochemical impact of the results are discussed." @default.
• W3124549048 created "2021-02-01" @default.
• W3124549048 creator A5009751232 @default.
• W3124549048 creator A5027358960 @default.
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• W3124549048 date "2015-04-03" @default.
• W3124549048 modified "2023-10-16" @default.
• W3124549048 title "Atom addition reactions in interstellar ice analogues" @default.
• W3124549048 cites W1544309923 @default.
• W3124549048 cites W1569925696 @default.
• W3124549048 cites W1612323484 @default.
• W3124549048 cites W1624693442 @default.
• W3124549048 cites W1965418097 @default.
• W3124549048 cites W1967536161 @default.
• W3124549048 cites W1968850479 @default.
• W3124549048 cites W1968937386 @default.
• W3124549048 cites W1969007231 @default.
• W3124549048 cites W1971021304 @default.
• W3124549048 cites W1971472641 @default.
• W3124549048 cites W1973040428 @default.
• W3124549048 cites W1974584521 @default.
• W3124549048 cites W1976842717 @default.
• W3124549048 cites W1977230133 @default.
• W3124549048 cites W1977281960 @default.
• W3124549048 cites W1977533210 @default.
• W3124549048 cites W1977548319 @default.
• W3124549048 cites W1977981582 @default.
• W3124549048 cites W1978781421 @default.
• W3124549048 cites W1978961341 @default.
• W3124549048 cites W1979340021 @default.
• W3124549048 cites W1979774681 @default.
• W3124549048 cites W1980435895 @default.
• W3124549048 cites W1984413631 @default.
• W3124549048 cites W1989113215 @default.
• W3124549048 cites W1991255608 @default.
• W3124549048 cites W1992321484 @default.
• W3124549048 cites W1992408883 @default.
• W3124549048 cites W1992580989 @default.
• W3124549048 cites W1992722492 @default.
• W3124549048 cites W1994139993 @default.
• W3124549048 cites W1997815756 @default.
• W3124549048 cites W1998234515 @default.
• W3124549048 cites W1998408542 @default.
• W3124549048 cites W1999260198 @default.
• W3124549048 cites W1999754357 @default.
• W3124549048 cites W2003476654 @default.
• W3124549048 cites W2003937728 @default.
• W3124549048 cites W2007047957 @default.
• W3124549048 cites W2011995640 @default.
• W3124549048 cites W2013372973 @default.
• W3124549048 cites W2014137776 @default.
• W3124549048 cites W2014474614 @default.
• W3124549048 cites W2016210363 @default.
• W3124549048 cites W2017373678 @default.
• W3124549048 cites W2017869488 @default.
• W3124549048 cites W2022110529 @default.
• W3124549048 cites W2024031384 @default.
• W3124549048 cites W2024670730 @default.
• W3124549048 cites W2025659057 @default.
• W3124549048 cites W2027719236 @default.
• W3124549048 cites W2027885315 @default.
• W3124549048 cites W2028874878 @default.
• W3124549048 cites W2029491525 @default.
• W3124549048 cites W2030972218 @default.
• W3124549048 cites W2031251030 @default.
• W3124549048 cites W2031448700 @default.
• W3124549048 cites W2032576691 @default.
• W3124549048 cites W2033305661 @default.
• W3124549048 cites W2041630714 @default.
• W3124549048 cites W2043045481 @default.
• W3124549048 cites W2044712286 @default.
• W3124549048 cites W2045657296 @default.
• W3124549048 cites W2045809237 @default.
• W3124549048 cites W2046219596 @default.
• W3124549048 cites W2046437368 @default.
• W3124549048 cites W2047248726 @default.
• W3124549048 cites W2048111339 @default.
• W3124549048 cites W2050570161 @default.
• W3124549048 cites W2052099620 @default.
• W3124549048 cites W2053030890 @default.
• W3124549048 cites W2055846571 @default.
• W3124549048 cites W2056860212 @default.
• W3124549048 cites W2058832643 @default.
• W3124549048 cites W2058921445 @default.
• W3124549048 cites W2059462160 @default.
• W3124549048 cites W2059598823 @default.
• W3124549048 cites W2060661779 @default.
• W3124549048 cites W2061914394 @default.
• W3124549048 cites W2063701407 @default.
• W3124549048 cites W2064306886 @default.
• W3124549048 cites W2065344026 @default.
• W3124549048 cites W2067949073 @default.
• W3124549048 cites W2068555356 @default.
• W3124549048 cites W2069444320 @default.
• W3124549048 cites W2073783548 @default.
• W3124549048 cites W2077431388 @default.
• W3124549048 cites W2078669992 @default.
• W3124549048 cites W2078844030 @default.

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