Laboratory study of methyl isocyanate ices under astrophysical conditions
نویسندگان
چکیده
منابع مشابه
A Model Study of the Thermal Evolution of Astrophysical Ices
We address the question of the evolution of ices that have been exposed to radiation from stellar sources and cosmic rays. We studied in the laboratory the thermal evolution of a model ice sample: a mixture of water, hydrogen peroxide, dioxygen, and ozone produced by irradiating solid H2O2 with 50 keV H at 17 K. The changes in composition and release of volatiles during warming to 200 K were mo...
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The exposure of icy Kuiper belt objects (KBOs) by ionizing radiation was simulated in this case of exposing carbon monoxide-nitrogen (CO-N(2)) ices by energetic electrons. The radiation-induced chemical processing was monitored on-line and in situ via FTIR spectroscopy and quadrupole mass spectrometry. Besides the array of carbon oxides being reproduced as in neat irradiated carbon monoxide (CO...
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Interand circumstellar ices comprise different molecules accreted on cold dust particles. These icy dust grains provide a molecule reservoir where particles can interact and react. As the grain acts as a third body, capable of absorbing energy, icy surfaces in space have a catalytic effect. Chemical reactions are triggered by a number of possible processes; (i) irradiation by light, typically U...
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Two 60 day experiments on predation behavior of leeches were conducted concurrently. In the first, medicinal leeches, Hirudo orientalis (Utevsky and Trontelj, 2005) were fed to satiation on bovine blood and subsequently transferred into two large opaque plastic containers of equal size but with differing temperatures, 6-7?C and 23-24?C, containing starved Erpobdella octoculata (L.). At the high...
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WANG, LAWRENCE C. H. Radiotelemetric study of hibernation under natural and laboratory conditions. Am. J. Physiol. 224(3): 673-677. 1973.-The body temperature of hibernating Richardson’s ground squirrel (Spermophilus richardsom) was measured by radiotelemetry both in its natural habitat and in the laboratory. Under natural conditions, hibernation extended from mid-September to early March. The ...
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ژورنال
عنوان ژورنال: Monthly Notices of the Royal Astronomical Society
سال: 2017
ISSN: 0035-8711,1365-2966
DOI: 10.1093/mnras/stx1461