Modeling Bell's Non-resonant Cosmic Ray Instability
  We have studied the non-resonant streaming instability of charged energetic particles moving through a background plasma, discovered by Bell (2004). We confirm his numerical results regarding a significant magnetic field amplification in the system. A detailed physical picture of the instability development and of the magnetic field evolution is given. 
V.N.Zirakashvili, V.S.Ptuskin, H.J.Voelk