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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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Baratta, Giuseppe
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Topics
Publications (10/10 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
- 2004Raman spectroscopy of ion irradiated diamondcitations
- 2004Infrared and Raman spectroscopies of refractory residues left over after ion irradiation of nitrogen-bearing icy mixturescitations
- 2004A Raman study of ion irradiated icy mixturescitations
- 2004Raman and photoluminescence study of ion beam irradiated porous silicon: a case for the astrophysical extended red emission?citations
- 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 spectroscopies of refractory residues left over after ion irradiation of nitrogen-bearing icy mixtures
Abstract
Using infrared and Raman spectroscopies, we have studied the effects induced by ion irradiation on icy mixtures at low temperature (T=12 K) and after warm up to room temperature. In particular, we have considered mixtures made of H<SUB>2</SUB>O, CO, CH<SUB>4</SUB>, and N<SUB>2</SUB>. These mixtures have been irradiated with 30 keV He<SUP>+</SUP> and 60 keV Ar<SUP>2+</SUP> ions. After ion irradiation at low temperature, several new absorption features appear in the infrared spectra, some of which may be due to N-bearing molecular species. A refractory organic residue is left over after warm-up to room temperature. After further irradiation of the residue at room temperature, the intensity of all infrared absorption features 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....