EXTINCTION SPECTRA OF CORUNDUM IN THE WAVELENGTHS FROM UV TO FIR

被引：111
作者：
KOIKE, C
KAITO, C
YAMAMOTO, T
SHIBAI, H
KIMURA, S
SUTO, H
机构：
[1] RITSUMEIKAN UNIV,KUSATSU 525,JAPAN
[2] HOKKAIDO UNIV,SAPPORO,HOKKAIDO 060,JAPAN
[3] INST SPACE & ASTRONAUT SCI,SAGAMIHARA,KANAGAWA 229,JAPAN
[4] COMMUN RES LABS,KOGANEI,TOKYO 184,JAPAN
来源：
ICARUS | 1995年 / 114卷 / 01期
关键词：
D O I：
10.1006/icar.1995.1055
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
Extinction efficiency from UV to FIR wavelengths were measured for two kinds of gamma-alumina particles; one is commercially available aerosil corundum particles, and the other is a combustion product. It is shown that the spectra showed very broad peaks around 13 mu m and that the features agreed very well with those of the spectrum calculated using data of bulk amorphous gamma-alumina. Complex refractive indices of the gamma-alumina particles were deduced from dispersion relations and are presented both in figures and in numerical tables. A brief discussion is given on the possible presence of corundum dust in celestial objects and meteorites. (C) 1995 Academic Press, Inc.
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页码：203 / 214
页数：12
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