• Auroral Arcs: The Fracture Theory Revisited 

      Haerendel, GerhardORCIDiD (Journal of Geophysical Research: Space Physics, 2021-01-15)
      The fracture theory for auroral arcs, developed by the author since 1980, compares the decoupling of the magnetic field from the ionosphere by the auroral acceleration region (AAR) with the breaking of a solid rod. In the ...
    • The Onset of a Substorm and the Mating Instability 

      Haerendel, GerhardORCIDiD; Frey, HaraldORCIDiD (Journal of Geophysical Research: Space Physics, 2021-10-19)
      The paper underlines the view that the appearance of beading and its nonlinear growth in the onset arc occurs independently from the onset of reconnection in the tail at about 20 RE. Both events follow from an extreme ...