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Clathrate Hydrates Formation in Short-Period Comets

Petit, Jean-Marc; Marboeuf, Ulysse; Mousis, Olivier +1 more

The initial composition of current models of cometary nuclei is only based on two forms of ice: crystalline ice for long-period comets and amorphous ice for short-period comets. A third form of ice, i.e., clathrate hydrate, could exist within the short-period cometary nuclei, but the area of formation of this crystalline structure in these objects…