Physics – Chemical Physics
Scientific paper
Jan 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002jchph.116.1211c&link_type=abstract
Journal of Chemical Physics, Volume 116, Issue 4, pp. 1211-1214 (2002).
Physics
Chemical Physics
11
Interstellar Medium And Nebulae In Milky Way, Radio-Frequency, Microwave, And Infrared Spectra, Infrared Spectra, Atomic And Molecular Data, Spectra, And Spectral Parameters
Scientific paper
Infrared spectra of CH stretches have been investigated on the surfaces of synthetic diamond crystallites (5, 100, and 700 nm in diameter) to provide insights into the mid-infrared emission bands of stardusts in interstellar media. While the spectrum of 5-nm diamonds fails to display the distinct 2835 cm-1 (or 3.53 μm) band, a remarkably good match of the absorption bands of larger diamond grains with the emission observed for the stars Elias 1 and HD 97048 is obtained. Suggested by this study, the nanodiamonds that can display such characteristic emission bands at 3.53 μm in these two interstellar systems have a size significantly larger than 5 nm.
Chang Hung C.
Chen Chi-Fan
Cheng Cong-Ling
Sheu Shyh-Yang
Wu Congjun
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