Ball lightning as a force-free magnetic knot

  • Ranada, Soler, Trueba
  • Published 2000 in
    Physical review. E, Statistical physics, plasmas…


The stability of fireballs in a recent model of ball lightning is studied. It is shown that the balls shine while relaxing in an almost quiescent expansion, and that three effects contribute to their stability: (i) the formation in each one during a process of Taylor relaxation of a force-free magnetic field, a concept introduced in 1954 in order to explain… (More)

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