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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Palumbo, Mariaelisabetta
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Topics
Publications (6/6 displayed)
- 2016Wild 2 grains characterized combining MIR/FIR/Raman micro-spectroscopy and FE-SEM/EDS analyses
- 2011Formation of CO_2 and OCS after cosmic ion irradiation of icy grain mantles
- 2007Combined Micro-Infrared (IR) and Micro-Raman Measurements on Stratospheric Interplanetery Dust Particles
- 2003A Raman study of ion irradiated icy mixtures
- 2002Infrared and Raman spectroscopy of refractory residues left over after ion irradiation of nitrogen bearing icy mixtures
- 2000Laboratory and astronomical IR spectra: an experimental clue for their comparison
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article
Infrared and Raman spectroscopy of refractory residues left over after ion irradiation of nitrogen bearing icy mixtures
Abstract
We have studied by infrared spectroscopy the evolution of the 2165 cm-1 absorption feature formed after ion irradiation of icy mixtures at low temperature (10-16 K). We have considered mixtures made of H2 O, CO, CH3 OH, CH4 , N2 and NH3 . These mixtures have been irradiated with 30 keV He+ and Ar+ ions and 60 keV Ar++ ions. In the infrared spectra, a feature appears at 2165 cm-1 after ion irradiation of all mixtures studied. After warm-up this feature shifts to lower wavenumbers and it is still present in the refractory residue left over at room temperature. After further irradiation of the residue at room temperature the intensity of the abosrption feature decreases. Raman spectroscopy of similar mixtures has shown that ion irradiation causes a modification of the structure of the samples which evolve towards an amorphous carbon....