Response of the Moon to the time-varying interplanetary magnetic field


  • J. L. Blank,

  • W. R. Sill


The solar wind plasma on the sunlit side of the moon is apparently energetic enough to confine any lunar magnetic fields within the lunar surface. Accordingly, the effect of the confining solar wind currents is represented by imposing a surface current at the moon-solar wind boundary, and the induced magnetic field in the lunar interior is calculated as a function of frequency for a simple core-crust model. The solution provides a method for estimating the electrical conductivity, and thus for obtaining information on the temperature, of the lunar interior from magnetic field measurements at the lunar surface.