Computer Science
Scientific paper
Sep 1979
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979icar...39..433c&link_type=abstract
Icarus, vol. 39, Sept. 1979, p. 433-449.
Computer Science
10
Atmospheric Ionization, Cosmic Rays, Jupiter Atmosphere, Ammonia, Atmospheric Chemistry, Atmospheric Models, Electron Density (Concentration), Hydrocarbons, Ion Density (Concentration), Ion Production Rates, Jupiter, Cosmic Rays, Atmosphere, Ionization, Absorption, Flux, Models, Ions, Electrons, Density, Pressure, Hydrocarbons, Chemistry, Magnetic Fields, Data, Gases, Particles, Ammonium, Dissociation, Neutralization
Scientific paper
An approximate form of the Boltzmann equation has been used to obtain local ionization rates due to the absorption of galactic cosmic rays in the Jovian atmosphere. It is shown that the muon flux component of the cosmic-ray-induced cascade may be especially important in ionizing the atmosphere at levels where the total number density exceeds 10 to the 19th per cu cm (well below the ionospheric layers produced by solar EUV). A model containing both positive and negative ion reactions has been employed to compute electron and ion number densities. Peak electron number densities of the order of 1000 per cu cm may be expected even at relatively low magnetic latitudes. The dominant positive ions are NH4(+) and CnHm(+) cluster ions, with n at least 2; it is suggested that the absorption of galactic cosmic-ray energy at such relatively high pressures in the Jovian atmosphere (M about 10 to the 18th to 10 to the 20th per cu cm) and the subsequent chemical reactions may be instrumental in the local formation of complex hydrocarbons.
Capone L. A.
Dubach J.
Prasad Shiva
Whitten Robert C.
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