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ABSTRACT

Allen et al. 1980

Allen, M., J.P. Pinto, and Y.L. Yung, 1980: Titan: Aerosol photochemistry and variations related to the sunspot cycle. Astrophys. J., 242, L125-L128, doi:10.1086/183416.

A photochemical theory is proposed for producing complex polymers in a methane atmosphere. It is argued that the polyacetylenes (C2nH2) are the most likely precursor molecules for the formation of the stratospheric haze layer on Titan. The production of polyacetylenes involves a strong positive feedback, leading to more production of polyacetylenes. The thermosphere of Titan may undergo substantial expansion and contraction over a solar cycle, with important consequences for the chemistry of the upper atmosphere.

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