The photochemistry of hydrocarbons in the atmosphere of Titan |
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| Authors: | Darrell F Strobel |
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| Institution: | Naval Research Laboratory, Washington, D.C. 20375, USA |
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| Abstract: | Detailed photochemical models are constructed for two model atmospheres: (1) 100% CH4 and (2) 50% H2, 50% CH4. Both models predict large column densities of C2H2 and C2H6 (～1 cm atm) for eddy mixing rates ～105 cm2 sec?, which are comparable to rates appropriate for Jupiter. These column densities vary inversely with the eddy diffusion coefficient. The models confirm the interpretation by Danielson et al. (1973) of the 12μ feature in the spectra of Gillet et al. (1973) as emission by C2H6 in a thermal inversion region. The mixing ratio is sensitive to the net escape rate of H atoms from the exobase. |
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