2 A ug 2 00 2 Imbalanced Weak MHD Turbulence

MHD turbulence consists of waves that propagate along magnetic fieldlines, in both directions. When two oppositely directed waves collide, they distort each other, without changing their respective energies. In weak MHD turbulence, a given wave suffers many collisions before cascading. " Imbalance " means that more energy is going in one direction than the… (More)