10-MU-M AND 20-MU-M INTER-STELLAR ABSORPTION-BANDS - COMPARISON WITH THE INFRARED-SPECTRUM OF THE NOGOYA METEORITE

被引:9
作者
FRIEDEMANN, C
GURTLER, J
DORSCHNER, J
机构
[1] Universitäts-Sternwarte Jena, Germany (Democratic Republic
关键词
D O I
10.1007/BF00644333
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
For submicrometer-sized particles of the carbonaceous chondrite Nogoya and, for comparison purposes, also of terrestrial chamosite, the mass absorption coefficients have been derived from laboratory spectra for the wavenumber range 250-1300 cm-1. 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-μm region it is concluded that phyllosilicates, especially such occurring in carbonaceous chondrites, are interesting candidates for the material of interstellar grains. © 1979 D. Reidel Publishing Co.
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页码:297 / 304
页数:8
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