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Title: A new pathway of Saturnian ring-ionosphere coupling via charged nanograins

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{sup –6} e amu{sup –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.
Authors:
;  [1]
  1. Institute of Space Science, National Central University, Jhongli City, Taoyuan County 32001, Taiwan (China)
Publication Date:
OSTI Identifier:
22357026
Resource Type:
Journal Article
Resource Relation:
Journal Name: Astrophysical Journal; Journal Volume: 786; Journal Issue: 1; Other Information: Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; COUPLING; INJECTION; IONOSPHERE; MAGNETIC FIELDS; MASS; NANOSTRUCTURES; PLANETS; SATELLITE ATMOSPHERES; SATELLITES; TRAJECTORIES