Computer Science
Scientific paper
Nov 1987
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987icar...72..381j&link_type=abstract
Icarus (ISSN 0019-1035), vol. 72, Nov. 1987, p. 381-393.
Computer Science
32
Atmospheric Chemistry, Nitrogen, Organic Compounds, Satellite Atmospheres, Shock Waves, Titan, Ammonia, Atmospheric Composition, Atmospheric Entry, Graphite, Impact, Saturn, Satellites, Titan, Impacts, Shock Effects, Nitrogen, Origin, Organic Material, Formation, Bombardment, Energy, Atmosphere, Chemistry, Models, Simulations, Carbonaceous Material, Hydrocarbons, Methane, Ammonia, Abundance, Composition, Evolution, Equilibrium, Graphite, Condensation, Kinetic Energy
Scientific paper
The authors present the results of a chemical model that calculates the equilibrium composition of a Titan gas mixture subjected to shock heating and rapid quenching, with the shock energy derived from the infall of meteoritic and cometary debris. Early bombardment of Titan by circum-Saturnian and heliocentric projectiles delivered energy to the atmosphere in amounts dwarfing the current input from ultraviolet radiation and any existing lightning source. The resulting N2 and organic production would have had major effects on the early atmospheric and surface evolution of Titan, converting enough primordial NH3 to produce the observed N2-rich atmosphere, and depositing an organic layer hundreds of meters thick.
Jones Timothy D.
Lewis Scott J.
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