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Access of energetic particles to Titan's exobase: A study of Cassini's T9 flyby
Coates, A. J.; Krupp, N.; Dougherty, M. K. +6 more
We study how the local electromagnetic disturbances introduced by Titan affect the ionization rates of the atmosphere. For this, we model the precipitation of energetic particles, specifically hydrogen and oxygen ions with energies between 1 keV and 1 MeV, into Titan's exobase for the specific magnetospheric configuration of the T9 flyby. For the …
A comprehensive analysis of ion cyclotron waves in the equatorial magnetosphere of Saturn
Simon, Sven; Kabanovic, Slawa; Meeks, Zachary
We present a comprehensive analysis of ion cyclotron waves in the equatorial magnetosphere of Saturn, considering all magnetic field data collected during the Cassini era (totaling to over 4 years of data from the equatorial plane). This dataset includes eight targeted flybys of Enceladus, three targeted flybys of Dione, and three targeted flybys …
Isotopic ratio of nitrogen on Titan: Photochemical interpretation
Krasnopolsky, Vladimir A.
Nitrogen isotope fractionation in predissociation of N2 (Liang et al., 2007) is combined with production of N(4S), N(2D), and N+ in dissociation and dissociative ionization by the solar EUV photons, photoelectrons, magnetospheric electrons and protons, and cosmic rays from the photochemical model. The ca…
Ion energy distributions and densities in the plume of Enceladus
Omidi, Nojan; Waite, J. Hunter; Cravens, Thomas E. +2 more
Enceladus has a dynamic plume that is emitting gas, including water vapor, and dust. The gas is ionized by solar EUV radiation, charge exchange, and electron impact and extends throughout the inner magnetosphere of Saturn. The charge exchange collisions alter the plasma composition. Ice grains (dust) escape from the vicinity of Enceladus and form …