Cosmic ray synthesis of organic molecules in Titan's atmosphere

Details Cosmic ray synthesis of organic molecules in Titan's atmosphere Cosmic ray synthesis of organic molecules in Titan's atmosphere

Oct 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980icar...44...72c&link_type=abstract

Icarus, vol. 44, Oct. 1980, p. 72-84.

Computer Science

39

Atmospheric Chemistry, Cosmic Rays, Ionic Reactions, Organic Compounds, Satellite Atmospheres, Synthesis (Chemistry), Titan, Atmospheric Models, Hydrogen, Ionization, Methane, Nitrogen, Positive Ions, Radiation Effects

Scientific paper

The possible synthesis of organic molecules by the absorption of galactic cosmic rays in an N2-CH4-H2 Titan model atmosphere has been studied. The cosmic-ray-induced ionization results in peak electron densities of 2000/cu cm, with NH(+), C3H9(+), and C4H9(+) being among the important positive ions. Details of the ion and neutral chemistry relevant to the production of organic molecules are discussed. The potential importance of N(2D) reactions with CH4 and H2 is also demonstrated. Although the integrated production rate of organic matter due to the absorption of the cosmic ray cascade is much less than that by solar ultraviolet radiation, the production of nitrogen-bearing organic molecules by cosmic rays may be greater.

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