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Paper: Mid-Infrared Spectrum of the Zodiacal Light Observed with AKARI/IRC
Volume: 418, AKARI, a Light to Illuminate the Misty Universe
Page: 395
Authors: Ootsubo, T.; Ueno, M.; Ishiguro, M.; Usui, F.; Pyo, J.; Hong, S. S.; Kwon, S. M.; Mukai, T.; the AKARI MP-SOSOS members
Abstract: We present three spectra of the zodiacal light observed in mid-infrared wavelength region with Infrared Camera (IRC) on board AKARI. The IRC spectra (5.5–12.5 μm) show an excess emission feature in 9–11 μm which can be reasonably accounted for by a combination of amorphous and crystalline silicate. The IRC observation suggests the presence of crystalline silicate features (9.3 and 11.35 μm) in the zodiacal light spectrum, indicating that pyroxene-rich anhydrous chondritic porous interplanetary dust particle-like dust may be one of major sources for the small (<10 μm) interplanetary dust particles.
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