Optical data of meteoritic nano-diamonds from far-ultraviolet to far-infrared wavelengths
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Optical data of meteoritic nano-diamonds from far-ultraviolet to far-infrared wavelengths. / Mutschke, H.; Andersen, A. C.; Jäger, C.; Henning, T.; Braatz, A.
I: Astronomy and Astrophysics, Bind 423, Nr. 3, 01.09.2004, s. 983-993.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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TY - JOUR
T1 - Optical data of meteoritic nano-diamonds from far-ultraviolet to far-infrared wavelengths
AU - Mutschke, H.
AU - Andersen, A. C.
AU - Jäger, C.
AU - Henning, T.
AU - Braatz, A.
PY - 2004/9/1
Y1 - 2004/9/1
N2 - We have used different spectroscopic techniques to obtain a consistent quantitative absorption spectrum of a sample of meteoritic nano-diamonds in the wavelength range from the vacuum ultraviolet (0.12 μm) to the far infrared (100 μm). The nano-diamonds have been isolated by a chemical treatment from the Allende meteorite (Braatz et al. 2000, Meteorit. Planet. Sci., 35, 75). Electron energy loss spectroscopy (EELS) extends the optical measurements to higher energies and allows the derivation of the optical constants (n & k) by Kramers-Kronig analysis. The results can be used to restrain observations and to improve current models of the environment where the nano-diamonds are expected to have formed. We also show that the amount of nano-diamond which can be present in space is higher than previously estimated by Lewis et al. (1989, Nature, 339, 117).
AB - We have used different spectroscopic techniques to obtain a consistent quantitative absorption spectrum of a sample of meteoritic nano-diamonds in the wavelength range from the vacuum ultraviolet (0.12 μm) to the far infrared (100 μm). The nano-diamonds have been isolated by a chemical treatment from the Allende meteorite (Braatz et al. 2000, Meteorit. Planet. Sci., 35, 75). Electron energy loss spectroscopy (EELS) extends the optical measurements to higher energies and allows the derivation of the optical constants (n & k) by Kramers-Kronig analysis. The results can be used to restrain observations and to improve current models of the environment where the nano-diamonds are expected to have formed. We also show that the amount of nano-diamond which can be present in space is higher than previously estimated by Lewis et al. (1989, Nature, 339, 117).
KW - ISM: dust, extinction ISM: lines and bands
KW - Methods: laboratory
KW - Stars: abundances
KW - Stars: atmospheres
KW - Stars: carbon
UR - http://www.scopus.com/inward/record.url?scp=4243200451&partnerID=8YFLogxK
U2 - 10.1051/0004-6361:20034544
DO - 10.1051/0004-6361:20034544
M3 - Journal article
AN - SCOPUS:4243200451
VL - 423
SP - 983
EP - 993
JO - Astronomy & Astrophysics
JF - Astronomy & Astrophysics
SN - 0004-6361
IS - 3
ER -
ID: 232623097