Optical properties of silicates in the far ultraviolet |
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| Authors: | Philippe L Lamy |
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| Institution: | Laboratoire d''Astronomie Spatiale, Les Trois Lucs, 13012 Marseille, France |
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| Abstract: | Near-normal incidence reflectance measurements in the interval 1026–1640 Å were performed on four silicates already studied in the visible and infrared by Pollack et al. (1973). We use a Kramers-Kronig analysis of these data to calculate the complex index of refraction m = n ? ik. New transmission measurements improve the determination of k in the interval 2500–4500 Å, except for andesite, which is more opaque than found by Pollack et al. |
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