Résumé
We have studied the ultraviolet (UV) optical response of various hollow and filled spherical multishell fullerenes (commonly called carbon onions) in the wavelength region of the carbon rc-plasmon excitation. Our theoretical approach, which follows a recently proposed growth model, allowed us to investigate the modification of the electronic properties of these clusters brought about by a material (for example, diamond) filling the inner cavity and by a coating layer (for example, water). We found that coated onion particles have optical properties consistent with the UV interstellar dust absorption data, including the constant position of the absorption maximum associated with a large variation of the resonance width.
langue originale | Anglais |
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Pages (de - à) | 719-727 |
Nombre de pages | 9 |
journal | Astrophysical Journal |
Volume | 487 |
Numéro de publication | 2 PART I |
Les DOIs | |
état | Publié - 1 janv. 1997 |
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Carbon onions as possible carriers of the 2175 A interstellar absorption bump. / Henrard, L.; Lambin, P. H.; Lucas, A. A.
Dans: Astrophysical Journal, Vol 487, Numéro 2 PART I, 01.01.1997, p. 719-727.Résultats de recherche: Contribution à un journal/une revue › Article
TY - JOUR
T1 - Carbon onions as possible carriers of the 2175 A interstellar absorption bump
AU - Henrard, L.
AU - Lambin, P. H.
AU - Lucas, A. A.
PY - 1997/1/1
Y1 - 1997/1/1
N2 - We have studied the ultraviolet (UV) optical response of various hollow and filled spherical multishell fullerenes (commonly called carbon onions) in the wavelength region of the carbon rc-plasmon excitation. Our theoretical approach, which follows a recently proposed growth model, allowed us to investigate the modification of the electronic properties of these clusters brought about by a material (for example, diamond) filling the inner cavity and by a coating layer (for example, water). We found that coated onion particles have optical properties consistent with the UV interstellar dust absorption data, including the constant position of the absorption maximum associated with a large variation of the resonance width.
AB - We have studied the ultraviolet (UV) optical response of various hollow and filled spherical multishell fullerenes (commonly called carbon onions) in the wavelength region of the carbon rc-plasmon excitation. Our theoretical approach, which follows a recently proposed growth model, allowed us to investigate the modification of the electronic properties of these clusters brought about by a material (for example, diamond) filling the inner cavity and by a coating layer (for example, water). We found that coated onion particles have optical properties consistent with the UV interstellar dust absorption data, including the constant position of the absorption maximum associated with a large variation of the resonance width.
KW - ISM: dust, extinction
KW - ISM: molecules
KW - Ultraviolet: ISM
UR - http://www.scopus.com/inward/record.url?scp=0001569645&partnerID=8YFLogxK
U2 - 10.1086/304645
DO - 10.1086/304645
M3 - Article
AN - SCOPUS:0001569645
VL - 487
SP - 719
EP - 727
JO - Astrophysical Journal
JF - Astrophysical Journal
SN - 0004-637X
IS - 2 PART I
ER -