Results 1 to 10 of about 740,577 (309)
Tests of shock chemistry in IC 443G
The Astrophysical Journal, 1992 Eight molecular species, in the hot dense clump IC 443G, believed to be impacted by the shock wave from the SNR IC 443, are investigated. The clump consists of two distinct regions, one relatively cool, and one hotter and denser. Region 1 contains CO, HCO(+), HCN, and CN, whose abundances may be explained either by ion-molecule chemistry, or by a D ...
B. E. Turner +3 more
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Antarctic aerosol and snowfall chemistry: implications for deep Antarctic ice-core chemistry [PDF]
Annals of Glaciology, 1999 AbstractIn this paper we first summarise major findings of recent atmospheric studies of nitrogen and sulphur species present in the boundary layer of coastal Antarctic regions. We then discuss the implications of such atmospheric data for the interpretation of nitrate, ammonium, methanesulphonate and sulphate records in deep ice cores extracted from ...
Legrand, Michel +2 more
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First-year sea-ice contact predicts bromine monoxide (BrO) levels at Barrow, Alaska better than potential frost flower contact [PDF]
Atmospheric Chemistry and Physics, 2007 Reactive halogens are responsible for boundary-layer ozone depletion and mercury deposition in Polar Regions during springtime. To investigate the source of reactive halogens in the air arriving at Barrow, Alaska, we measured BrO, an indicator of ...
W. R. Simpson +8 more
doaj
Organics in environmental ices: sources, chemistry, and impacts [PDF]
Atmospheric Chemistry and Physics, 2012 The physical, chemical, and biological processes involving organics in ice in the environment impact a number of atmospheric and biogeochemical cycles.
V. F. McNeill +14 more
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The response of Antarctic sea ice algae to changes in pH and CO2.
PLoS ONE, 2014 Ocean acidification substantially alters ocean carbon chemistry and hence pH but the effects on sea ice formation and the CO2 concentration in the enclosed brine channels are unknown.
Andrew McMinn +3 more
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Annotated bibliography of the Russian literature on glaciology for 2014
Лëд и снег, 2016 The proposed annual bibliography continues annotated lists of the Russian-language literature on glaciology that were regularly published in the past. It includes 271 references grouped into the following ten sections: 1) general issues of glaciology; 2)
V. M. Kotlyakov, L. P. Chernova
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Widespread Presence of Glycolaldehyde and Ethylene Glycol Around Sagittarius B2
, 2017 We report the detection of widespread CH$_2$OHCHO and HOCH$_2$CH$_2$OH emission in Galactic center giant molecular cloud Sagittarius B2 using the Shanghai Tianma 65m Radio Telescope.
Chen, Xi +12 more
core +1 more source
Photodesorption of water ice: a molecular dynamics study
, 2008 Absorption of ultraviolet radiation by water ice coating interstellar grains can lead to dissociation and desorption of the ice molecules. These processes are thought to be important in the gas-grain chemistry in molecular clouds and protoplanetary disks,
Aikawa +63 more
core +1 more source
, 2010 Gas-phase complex organic molecules have been detected toward a range of high- and low-mass star-forming regions at abundances which cannot be explained by any known gas-phase chemistry.
Bottinelli, Sandrine +3 more
core +1 more source
Elementa: Science of the Anthropocene, 2019 The cryosphere, which comprises a large portion of Earth’s surface, is rapidly changing as a consequence of global climate change. Ice, snow, and frozen ground in the polar and alpine regions of the planet are known to directly impact atmospheric ...
Jennie L. Thomas +34 more
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