Raman spectra of seven interplanetary dust particles

Details Raman spectra of seven interplanetary dust particles Raman spectra of seven interplanetary dust particles

Jan 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992chjss..12...57x&link_type=abstract

Chinese Journal of Space Science (ISSN 0254-6124), vol. 12, no. 1, p. 57-62.

Computer Science

1

Earth Atmosphere, Hydrocarbons, Interplanetary Dust, Raman Spectra, Crystal Structure, X Ray Spectra

Scientific paper

The Raman shift spectra of seven interplanetary dust particles, U2034(F10), U2034(F8), U2022(B1), W7074 18, W7074 C15, W7074 C3 and W7074 A7, were measured with a Spex-1403 Raman spectrograph. The exciting radiations were the 488 nm and 514 nm line of a 5W argon ion laser. All seven spectra exhibit the 1350 and 1600 Delta/cm arbon bands, implying that the Interplanetary dust particles were coated with hydrocarbon and incompletely crystallized carbon, the part of which may be the residue of hydrocarbon contents in the particles after water loss by the heating during their entry into the earth's atmosphere. A weak band structure in the 520-610/cm range could be caused by cyclosilicates, and a weak band at 2900/cm is tentatively identified as due to hydrocarbon molecules.

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