Astronomy and Astrophysics – Astronomy
Scientific paper
Oct 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010dps....42.3606c&link_type=abstract
American Astronomical Society, DPS meeting #42, #36.06; Bulletin of the American Astronomical Society, Vol. 42, p.1065
Astronomy and Astrophysics
Astronomy
Scientific paper
In 2007, the instruments of the CASSINI spacecraft, orbiting within the system of Saturn, allowed the discovery of RADAR dark-patches in the polar regions of the main kronian moon. These features are interpreted as hydrocarbon lakes with ethane identified as the main compound. In order to detail the composition of these lakes, numerical simulations have been recently performed assuming thermodynamic equilibrium between the atmosphere and the liquid phase. Here we first explore the influence of thermodynamic data uncertainties on the computed lakes chemical composition. To do so, we perform Monte-Carlo simulations in order to mimic the relevant uncertainties. In a second stage we examine the hypothesis that Titan's hydrocarbon lakes could be at the origin of the strong noble gas depletion measured in the atmosphere by the Huygens probe.
Cordier Daniel
Ferreira Artur
Lavvas Panayiotis
Lebonnois Sébastien
Lobo Lester
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