Standard model spectra in the range of 2−50 μm and 67−72 μm. For parameters see Table 3. In gray the continuum under the 69 μm band. Spectral bands of crystalline olivine at 11.3, 23.5, 27.5 and 33.5 μm are indicated with vertical gray lines. The 23.5 and 27.5 μm bands are difficult to detect because these spectral bands are already in self reversal.
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