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Mid-Infrared Spectrum of the Zodiacal Emission: Detection of Crystalline Silicates in Interplanetary DustWithin a few astronomical units of the Sun the solar system is filled with interplanetary dust, which is believed to be dust of cometary and asteroidal origin. Spectroscopic observations of the zodiacal emission with moderate resolution provide key information on the composition and size distribution of the dust in the interplanetary space. They can be compared directly to laboratory measurements of candidate materials, meteorites, and dust particles collected in the stratosphere. Recently mid-infrared spectroscopic observations of the zodiacal emission have been made by two instruments on board the Infrared Space Observatory; the camera (ISOCAM) and the spectrophotometer (ISOPHOT-S). A broad excess emission feature in the 9-11 micron range is reported in the ISOCAM spectrum, whereas the ISOPHOT-S spectra in 6-12 microns can be well fitted by a blackbody radiation without spectral features.
Document ID
20030073597
Document Type
Conference Paper
Authors
Ootsubo, T. (National Astronomical Observatory Tokyo, Japan)
Onaka, T. (Tokyo Univ. Japan)
Yamamura, I. (Tokyo Univ. Japan)
Ishihara, D. (Tokyo Univ. Japan)
Tanabe, T. (Tokyo Univ. Japan)
Roellig, T. L. (NASA Ames Research Center Moffett Field, CA, United States)
Date Acquired
August 21, 2013
Publication Date
January 1, 2003
Publication Information
Publication: Workshop on Cometary Dust in Astrophysics
Subject Category
Astronomy
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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IDRelationTitle20030073556Analytic PrimaryWorkshop on Cometary Dust in Astrophysics
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