Extended Data Fig. 4: Refractive index of CH4 ice. | Nature Astronomy

Extended Data Fig. 4: Refractive index of CH4 ice.

From: A major ice component in Pluto’s haze

Extended Data Fig. 4

Red lines and dots correspond to measurements at IR32,76 and visible77,78 wavelengths, respectively. Our estimate based on the gas phase cross section is shown by the gray line and is consistent with a previous estimate69 (blue dots). The dashed line presents the results when the kUV is fitted with a set of Gaussian curves and the solid black line presents the case of a 2,000 cm−1 blue-shift on kUV. All cases provide results in agreement with the visible observations and consistent with measurements (orange and green lines) in the UV range71,72.

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