The 10- and 20-micron interstellar absorption bands - Comparison with the infrared spectrum of the Nogoya meteorite

Details The 10- and 20-micron interstellar absorption bands - Comparison with the infrared spectrum of the Nogoya meteorite The 10- and 20-micron interstellar absorption bands - Comparison with the infrared spectrum of the Nogoya meteorite

Feb 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979ap%26ss..60..297f&link_type=abstract

Astrophysics and Space Science, vol. 60, no. 2, Feb. 1979, p. 297-304.

Astronomy and Astrophysics

Astrophysics

9

Absorption Spectra, Carbonaceous Chondrites, Cosmic Dust, Infrared Spectra, Interstellar Radiation, Absorptivity, Infrared Spectroscopy, Interstellar Gas, Mass Spectroscopy, Particle Size Distribution, Silicates, Absorption Spectra, Meteorites, Infrared, Spectrum, Flux, Silicates, Carbonaceous Chondrites, Nogoya Meteorite, Phyllosilicates, Wavelengths, Observations, Mineralogy, Experiments, C2 Chondrites, Cosmic Dust

Scientific paper

For submicrometer-size particles of the Nogoya carbonaceous chondrite and, for comparison purposes, also of terrestrial chamosite, the mass absorption coefficients have been derived from laboratory spectra for the wavenumber range 250-1300 kaysers. By using these data the expected spectrum of an infrared source has been calculated under simple model assumptions and compared with the observed flux from the infrared source OH 26.5+0.6. Although certain discrepancies are left in the 20-micron region it is concluded that phyllosilicates, especially those occurring in carbonaceous chondrites, are interesting candidates for the material of interstellar grains.

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