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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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Jones, Anthony
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (20/20 displayed)
- 2021BEDE: Bayesian estimates of dust evolution for nearby galaxiescitations
- 2015Amorphous Hydrocarbon Optical Properties
- 2015Dust variations in the diffuse interstellar medium: constraints on Milky Way dust from Planck-HFI observationscitations
- 2014A hidden reservoir of Fe/FeS in interstellar silicates?citations
- 2013The Circle of Dust: From Nanoparticles to Macromolecules and Beyond
- 2013Heteroatom-doped hydrogenated amorphous carbons, a-C:H:X. "Volatile" silicon, sulphur and nitrogen depletion, blue photoluminescence, diffuse interstellar bands and ferro-magnetic carbon grain connectionscitations
- 2013On the Excitation and Formation of Circumstellar Fullerenes
- 2013Photoprocessing-driven dust evolution in the diffuse ISM
- 2012Variations on a theme - the evolution of hydrocarbon solids. I. Compositional and spectral modelling - the eRCN and DG modelscitations
- 2012Variations on a theme - the evolution of hydrocarbon solids. II. Optical property modelling - the optEC<SUB>(s)</SUB> modelcitations
- 2012Variations on a theme - the evolution of hydrocarbon solids. III. Size-dependent properties - the optEC<SUB>(s)</SUB>(a) modelcitations
- 2009The Cycle of Carbon Dust in the ISM
- 2008Carbonaceous dust in interstellar shock waves: hydrogenated amorphous carbon (a-C:H) vs. graphitecitations
- 2007IRAS 08572+3915: constraining the aromatic versus aliphatic content of interstellar HACscitations
- 2007Ferromagnetic inclusions in silicate thin films: insights into the magnetic properties of cosmic grainscitations
- 2006The origin of GEMS in IDPs as deduced from microstructural evolution of amorphous silicates with annealingcitations
- 2004Laboratory Studies of the Ion-irradiation of Dust Analogs: Application to the Evolution of Interstellar Silicates
- 2002Temperature-dependent FIR/sub-mm dust emissivity indices: some implications for the diffuse ISM dust compositioncitations
- 2001Structural and chemical alteration of crystalline olivine under low energy He<SUP>+</SUP> irradiationcitations
- 2000The formation and reformation of interstellar dust.
Places of action
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article
Heteroatom-doped hydrogenated amorphous carbons, a-C:H:X. "Volatile" silicon, sulphur and nitrogen depletion, blue photoluminescence, diffuse interstellar bands and ferro-magnetic carbon grain connections
Abstract
Context. Hydrogenated amorphous carbons, a-C:H, can incorporate a variety of heteroatoms, which can lead to interesting effects. <BR /> Aims: We investigate the doping of interstellar a-C:H grains with, principally, Si, O, N and S atoms within the astrophysical context. <BR /> Methods: A search of the literature on doped a-C:H reveals a number of interesting phenomena of relevance to astrophysics. <BR /> Results: X dopants in a-C:H:X materials can affect the sp<SUP>3</SUP>/sp<SUP>2</SUP> ratio (X = Si, O and N), lead to blue photoluminescence (undoped or X = N), induce ferromagnetic-like behaviour (X = N and S) or simply be incorporated (depleted) into the structure (X = Si, O, N and S). Si and N atoms could also incorporate into fullerenes, possibly forming colour-centres that could mimic diffuse interstellar bands. <BR /> Conclusions: Doped a-C:H grains could explain several dust-related conundrums, such as: "volatile" Si in photo-dissociation regions, S and N depletion in molecular clouds, blue luminescence, some diffuse interstellar bands and ferromagnetism in carbonaceous grains....