Abstract
From a re-examination of the trajectories of small charged grains in the vicinity of the Saturnian rings, it is shown that the orbital motion of positively charged grains with a charge-to-mass ratio on the order of 10 -6 e amu-1 could allow the injection of water material into the equatorial atmosphere. Thus, a mechanism of ionospheric depletion in the equatorial region is provided, as indicated by the Cassini radio occultation measurements.
Original language | English |
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Article number | 34 |
Journal | Astrophysical Journal |
Volume | 786 |
Issue number | 1 |
DOIs | |
State | Published - 1 May 2014 |
Keywords
- planets and satellites: atmospheres
- planets and satellites: magnetic fields
- planets and satellites: rings