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Figure 1. Titan haze formation according to the model of Chassefiere and Cabane [1995]. According to their model, Titan’s detached haze layer consists of aerosols formed from polyacetylenes and perhaps from C-N oligomers photochemically created between 500 and 800 km. The main haze layer, on the other hand, is constituted by C-H-N oligomers produced between 350 and 400 km by reactions initiated by the influx of energetic particles from Saturn’s magnetosphere. Such C-H-N oligomers have been termed ”tholins” by researchers at Cornell University, who have investigated their synthesis under conditions approximating those at Titan [e. g., Thompson et al., 1994]. Tholins may be formed at higher altitudes as well, and thus may also contribute to the detached haze layer.