C2H2 Photolysis Products as a Simulation of Titans Atmosphere

Details C2H2 Photolysis Products as a Simulation of Titans Atmosphere C2H2 Photolysis Products as a Simulation of Titans Atmosphere

Sep 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006dps....38.2708j&link_type=abstract

American Astronomical Society, DPS meeting #38, #27.08; Bulletin of the American Astronomical Society, Vol. 38, p.528

Astronomy and Astrophysics

Astronomy

Scientific paper

Since the descent of the Huygens probe in January 2005 and during the ongoing Cassini mission, a huge amount of data on Titan's atmosphere has been collected. Numerous hydrocarbon species have been observed, including C2H2, C2H4, C2H6, C3H4, C3H8 C4H2, C4H4, C2N2, HC3N and C6H6. The UV photolysis of various mixtures of C2H2, CH4, HCN and N2 at temperatures of 300K and 200K was studied. The abundances of gas-phase species were found to be in very good agreement with the Cassini-INMS observations. In addition to the gas-phase species, we shall present the composition of the solid phase polymers, mostly PAHs, up to Pyrene - C20H12. Masses up to m/e=881 were observed. The atomic ratios were found to be C:H:N = 1:!:0.007(8).

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