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Europa and Ganymede's Water-Product Exospheres

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Figure 1: Surface densities for the dominant species in Europa (solid) and Ganymede’s (dashed) exospheres at the sunlit trailing hemisphere.The H 2 O case  repre-sents a low-sublimation case[2].
Figure 2: Line-of-sight column density maps for the dominant hydrogen species on Europa and Ganymede

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