Abstract
Clathrate hydrate early entered the field of space astrophysics as they were suggested to explain the anomalous desorption behaviour of gaseous parent molecules in comets by providing a dissociation pressure curve intermediate between the pure compound sublimation equilibrium and the water ice phase. It is nowadays the source for many astrophysical investigations with application ranging from explaining giant planets (and/or their satellites) observed molecular abundances, the possible occurrence of Mars carbon dioxide/methane clathrates or ethane sequestration on the Saturn's moon Titan. We experimentally investigate near to mid-infrared spectroscopic signature of clathrates in the low temperature range adapted to these icy bodies of our solar system. We discuss the implications for space-based astrophysical satellites or probes remote sensing in order to constrain their possible presence.
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