Magnetospheres of the Galilean Satellites
MARGARET G. KIVELSON 1,
JAMES A. SLAVIN 1, and
DAVID J. SOUTHWOOD 1
1 Institute of Geophysics and Planetary Physics and Department of Earth and Space Sciences, University of California, Los Angeles 90024
The plasma and field perturbations of magnetospheres that would surround magnetized galilean satellites embedded in the corotating jovian plasma differ from those produced by interaction with an unmagnetized conductor. If the intrinsic satellite dipole is antiparallel to that of Jupiter, the magnetosphere will be open. It is predicted that Io has an internal magnetic field with a dipole moment of 6.5 x 1022 gauss-cubic centimeters antiparallel to Jupiter's, and Io's special properties can be interpreted on the basis of a reconnecting magnetosphere.
Submitted on March 27, 1979
Revised on May 31, 1979