Experimental laboratory simulation of Titan's atmosphere: aerosols and gas phase

Details Experimental laboratory simulation of Titan's atmosphere: aerosols and gas phase Experimental laboratory simulation of Titan's atmosphere: aerosols and gas phase

Oct 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999p%26ss...47.1331c&link_type=abstract

Planetary and Space Science, Volume 47, Issue 10-11, p. 1331-1340.

Physics

87

Scientific paper

The discovery that Titan, the largest satellite of Saturn, has an atmosphere and that methane is a significant constituent of it, was the starting point for a systematic study of Titan's atmospheric organic chemistry. Since then, the results from numerous ground-based observations and two flybys of Titan, by Voyager I and II, have led to experimental laboratory simulation studies and photochemical and physical modeling. All these works have provided a more detailed picture of Titan. We report here a continuation of such a study performing an experimental laboratory simulation of Titan's atmospheric chemistry, and considering the two physical phases involved: gases and aerosols. Concerning the gaseous phase, we report the first detection of C4N2 and we propose possible atmospheric abundances for 70 organic compounds on Titan's upper atmosphere. Concerning the solid phase, we have characterized aerosol analogues synthesized in conditions close to those of Titan's environment, using elemental analysis, pyrolysis, solubility studies and infrared spectroscopy.

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