From Titan’s tholins to Titan’s aerosols: Isotopic study and chemical evolution at Titan’s surface |
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Authors: | Mai-Julie Nguyen François Raulin Patrice Coll Sylvie Derenne Cyril Szopa Guy Cernogora Guy Israël Jean-Michel Bernard |
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Institution: | 1. Laboratoire Interuniversitaire des Systèmes Atmosphériques (LISA), Universities Paris 12 and Paris 7, F-94010 Créteil, France;2. Laboratoire de Chimie Bioorganique et Organique Physique/Bioemco CNRS-ENSCP, F-75231 Paris, France;3. Service d’Aéronomie (SA), Universities Paris 6 and Versailles-Saint-Quentin, F-91371 Verrières le buisson, France;4. Laboratoire de Planétologie de Grenoble (LPG), F-38041 Grenoble, France |
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Abstract: | In the present work, we focused on the possible isotopic fractionation of carbon during the processes involved in the formation of Titan’s tholins. We present the first results obtained on the 12C/13C isotopic ratios measured on Titan’s tholins synthesized in laboratory with cold plasma discharges. Measurements of isotopic ratio 12C/13C, done both on tholins and on the initial gas mixture (N2:CH4 (98:2)) used to produce them, do not show any evident deficit or enrichment in 13C relatively to 12C in the synthesized tholins, compared to the initial gas mixture. This observation allows to go further in the analyses of the ACP experiment data, including part of the Cassini–Huygens mission. |
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Keywords: | Titan Atmosphere Aerosols Tholins Simulations Chemical evolution Surface ACP |
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