Mid-IR and VUV spectroscopic characterisation of thermally processed and electron irradiated CO2 astrophysical ice analogues

Journal of Molecular Spectroscopy(2022)

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摘要
•Mid-IR and VUV spectra of thermally annealed and irradiated CO2 ices were studied.•Firstly, ices deposited at various temperatures were annealed to 70 K.•Secondly, the temperature-dependent formation of radiolytic products was assessed.•Spectra are sensitive to changes induced by thermal annealing and irradiation.•Our results are relevant to the study of interstellar and Solar System ices.
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关键词
Astrochemistry,Mid-IR spectroscopy,VUV spectroscopy,Electron-induced chemistry,Synchrotron radiation
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