Heterogeneous solid/gas chemistry of organic compounds related to comets,meteorites, Titan,and Mars: Laboratory and in lower Earth orbit experiments |
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Authors: | H Cottin P Coll D Coscia N Fray YY Guan F Macari F Raulin C Rivron F Stalport C Szopa D Chaput M Viso M Bertrand A Chabin L Thirkell F Westall A Brack |
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Institution: | 1. LISA, Université Paris 12 et Paris 7, CNRS, 61 Av. du Général de Gaulle, 94010, Créteil, France;2. Service d’aéronomie, UMR 7620 CNRS, Réduit de Verrières – BP 3, Route des Gatines, 91371 Verrières le Buisson Cedex, France;3. CNES, Centre spatial de Toulouse, 18 Avenue Edouard Belin, 31401 Toulouse Cedex 9, France;4. CNES, 2 Place Maurice Quentin, 75039 Paris Cedex 01, France;5. CBM, CNRS, Rue Charles-Sadron, 45071 Orleans Cedex 2, France;6. LPCE, CNRS, Avenue de la Recherche Scientifique, 45071 Orleans Cedex 2, France |
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Abstract: | To understand the evolution of organic molecules involved in extraterrestrial environments and with exobiological implications, many experimental programs in the laboratory are devoted to photochemical studies in the gaseous phase as well as in the solid state. The validity of such studies and their applications to extraterrestrial environments can be questioned as long as experiments conducted in space conditions, with the full solar spectrum, especially in the short wavelength domain, have not been implemented. The experiments that are described here will be carried out on a FOTON capsule, using the BIOPAN facility, and on the International Space Station, using the EXPOSE facility. Vented and sealed exposition cells will be used, which will allow us to study the chemical evolution in the gaseous phase as well as heterogeneous processes, such as the degradation of solid compounds and the release of gaseous fragments. |
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Keywords: | Astrochemistry Photolysis Exo-astrobiology Comet Titan Mars Meteorite International Space Station FOTON EXPOSE BIOPAN |
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