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Compositional Mapping of Europa Using MCMC Modeling of Near-IR VLT/SPHERE and Galileo/NIMS Observations

  • Authors: Oliver King, Leigh N Fletcher, and Nicolas Ligier

2022 The Planetary Science Journal 3 72.

  • Provider: AAS Journals

Caption: Figure 11.

Hydrated sulfuric acid spatial distribution for the SPHERE and NIMS data sets. The values shown here are the best estimates that are calculated as the median of the posterior abundance distribution for each location. The acid abundance is highest toward the trailing apex (270° west, 0° north) and lower toward the leading hemisphere and high latitudes. The slight increase in acid abundance toward the edge of the SPHERE data set is likely to be caused by residual errors from the photometric correction. The typical uncertainty on the abundance values is ±10 percentage points for SPHERE and ±7 percentage points for NIMS.

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