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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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Godard, Marie
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (10/10 displayed)
- 2022The 3.4 µm absorption band profile : comparison of aliphatic interstellar dust observations and laboratory analogues properties
- 2017Swift heavy ion irradiation of interstellar dust analogues. Small carbonaceous species released by cosmic rayscitations
- 2016Mantle formation, coagulation, and the origin of cloud/core shine. I. Modelling dust scattering and absorption in the infraredcitations
- 2014Hydrogenated amorphous carbons : evolution of interstellar carbon dust
- 2012Effects of cosmic rays on hydrocarbon interstellar dustcitations
- 2011Hydrogenated amorphous carbons: observations, synthesis and characterisation in laboratory of interstellar dust
- 2011Ion irradiation of carbonaceous interstellar analogues. Effects of cosmic rays on the 3.4 μm interstellar absorption bandcitations
- 2011The influence of cosmic rays on the 3.4 microns interstellar absorption band
- 2010Photoluminescence of hydrogenated amorphous carbons: Wavelength-dependent yield and implications for the extended red emissioncitations
- 2009Hydrogenated amorphous carbons photoluminescence and astrophysical implications for the extended red emission
Places of action
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article
Swift heavy ion irradiation of interstellar dust analogues. Small carbonaceous species released by cosmic rays
Abstract
Context. Interstellar dust grain particles are immersed in vacuum ultraviolet (VUV) and cosmic ray radiation environments influencing their physicochemical composition. Owing to the energetic ionizing interactions, carbonaceous dust particles release fragments that have direct impact on the gas phase chemistry. <BR /> Aims: The exposure of carbonaceous dust analogues to cosmic rays is simulated in the laboratory by irradiating films of hydrogenated amorphous carbon interstellar analogues with energetic ions. New species formed and released into the gas phase are explored. <BR /> Methods: Thin carbonaceous interstellar dust analogues were irradiated with gold (950 MeV), xenon (630 MeV), and carbon (43 MeV) ions at the GSI UNILAC accelerator. The evolution of the dust analogues is monitored in situ as a function of fluence at 40, 100, and 300 K. Effects on the solid phase are studied by means of infrared spectroscopy complemented by simultaneously recording mass spectrometry of species released into the gas phase. <BR /> Results: Specific species produced and released under the ion beam are analyzed. Cross sections derived from ion-solid interaction processes are implemented in an astrophysical context.