Laboratory study of silicates and application to cometary dust

Details Laboratory study of silicates and application to cometary dust Laboratory study of silicates and application to cometary dust

Dec 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992ncimc..15.1091b&link_type=abstract

Nuovo Cimento C, Serie 1 (ISSN 0390-5551), vol. 15 C, no. 6, p. 1091-1096.

Computer Science

2

Cometary Atmospheres, Cosmic Dust, Optical Properties, Silicates, Emission Spectra, Glass, Halley'S Comet, Infrared Spectroscopy, Olivine

Scientific paper

A study was carried out to measure the optical properties of glassy silicates having a composition similar to that of minerals predicted in theoretical condensation sequences. Here, measured values of the mass absorption coefficient, from 2.5 to 25 microns, are presented for ground samples of olivine, dipsoid, and serpentine, and also smoke samples prepared from these minerals. The broad emission feature present in the Comet Halley spectrum between 8 and 13 microns is fitted using laboratory spectral data of natural (both glassy and crystalline) and synthetic amorphous olivine with a chemical composition reflecting the cosmic abundances of the various components.

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