Preliminary Pioneer 10 Encounter Results from the Ames Research Center Plasma Analyzer Experiment

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Science  25 Jan 1974:
Vol. 183, Issue 4122, pp. 303-305
DOI: 10.1126/science.183.4122.303


Preliminary results from the Ames Research Center plasma analyzer experiment for the Pioneer 10 Jupiter encounter indicate that Jupiter has a detached bow shock and magnetopause similar to the case at Earth but much larger in spatial extent. In contrast to Earth, Jupiter's outer magnetosphere appears to be highly inflated by thermal plasma and therefore highly responsive in size to changes in solar wind dynamic pressure.