Abstract
There is an order-of-magnitude discrepancy between the observations and theoretical calculations of electron density in Saturn's ionosphere. Since the lower observed values are prevalent regardless of latitude, there must be a loss process operating over the entire planet which is missing from current theoretical considerations. A corona of ice particles is suggested here as a possible explanation.
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Chen, R.H. Saturn's ionosphere: A corona of ice particles?. The Moon and the Planets 28, 37–41 (1983). https://doi.org/10.1007/BF01371670
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DOI: https://doi.org/10.1007/BF01371670