Plasma measurements made during the flyby of Io on 7 December 1995 with the Galileo spacecraft plasma analyzers reveal that the spacecraft unexpectedly passed directly through the ionosphere of Io. The ionosphere is identified by a dense plasma that is at rest with respect to Io. This plasma is cool relative to those encountered outside the ionosphere. The composition of the ionospheric plasmas includes O++, O+ and S++, S+, and SO2+ ions. The plasma conditions at Io appear to account for the decrease in the magnetic field, without the need to assume that Io has a magnetized interior.
CITATION STYLE
Frank, L. A., Paterson, W. R., Ackerson, K. L., Vasyliunas, V. M., Coroniti, F. V., & Bolton, S. J. (1996). Plasma observations at Io with the Galileo spacecraft. Science, 274(5286), 394–395. https://doi.org/10.1126/science.274.5286.394
Mendeley helps you to discover research relevant for your work.