Raman spectra of submicron amorphous carbon grains and mixtures of polycyclic aromatic hydrocarbons

Details Raman spectra of submicron amorphous carbon grains and mixtures of polycyclic aromatic hydrocarbons Raman spectra of submicron amorphous carbon grains and mixtures of polycyclic aromatic hydrocarbons

Nov 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988infph..28..383b&link_type=abstract

Infrared Physics (ISSN 0020-0891), vol. 28, Nov. 1988, p. 383-388. Research supported by MPI.

Physics

7

Amorphous Materials, Cyclic Hydrocarbons, Interstellar Matter, Raman Spectra, Aromatic Compounds, H Ii Regions, Infrared Spectra, Spectrum Analysis

Scientific paper

Raman spectra are presented for different samples of materials, potentially candidates of interstellar dust, namely amorphous carbon submicron particles and polycyclic aromatic hydrocarbon collections (PAH). The carbon particles show spectra characterized by two peaks, falling respectively at 1365/cm and 1590/cm, while PAH spectra seem to be characterized by a single line at 1590/cm. These preliminary results confirm that PAH collections alone cannot account for the astronomical unidentified infrared bands, while mixtures containing also hydrogenated amorphous carbon produce a better match.

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