Astronomy and Astrophysics – Astrophysics
Scientific paper
Jul 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002a%26a...389..568s&link_type=abstract
Astronomy and Astrophysics, v.389, p.568-571 (2002)
Astronomy and Astrophysics
Astrophysics
8
Methods: Laboratory, Dust, Circumstellar Matter, Ism: Lines And Bands
Scientific paper
Crystalline silicate is an important matter since the ISO discovery of crystalline silicate features in circumstellar dusty environments. Polarized infrared reflection spectra of crystal fayalite (Fe2SiO4), an end member of olivine solid solution, were measured for each crystal axis in infrared region up to 100 mu m, and the oscillator parameters of the dielectric constants for each crystal axis are derived by fitting the reflection spectra. The optical constants derived by the oscillator parameters provide a useful standard for the optical characterization of fayalite.
Chihara Hiroyuki
Koike Chiyoe
Mizutani Kohei
Sogawa Hisato
Suto Hiroshi
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