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Science 18 January 1980:
Vol. 207. no. 4428, pp. 301 - 302
DOI: 10.1126/science.207.4428.301
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Articles

Corotation Lag in Jupiter's Magnetosphere: Comparison of Observation and Theory

T. W. HILL 1

1 Department of Space Physics and Astronomy, Rice University, Houston, Texas 77001

Voyager 1 plasma flow data are compared with a recent theory that predicted measurable departures from rigid corotation in Jupiter's magnetosphere as a consequence of rapid plasma production and weak atmosphere-magnetosphere coupling. The comparison indicates that the theory can account for the observed corotation lag, provided that the plasma mass production rate during the Voyager 1 encounter was rather larger than expected, namely sim 1030 atomic mass units per second.

Submitted on August 28, 1979

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Science. ISSN 0036-8075 (print), 1095-9203 (online)