Remanent magnetism at Mars

  title={Remanent magnetism at Mars},
  author={S. A. Curtis and Norman F. Ness},
We show that a strong case can be made for an intrinsic magnetic field of dynamo origin for Mars earlier in its history. The typical equatorial magnetic field intensity would have been ∼ 0.01-0.1 Gauss. The earlier dynamo activity is no longer extant, but a significant remanent magnetic field may exist. A highly non-dipole magnetic field could result from the remanent magnetization of the surface. Remanent magnetization may thus play an important role in the Mars solar wind interactions in… CONTINUE READING