Limitations of Hall MHD as a model for turbulence in weakly collisional plasmas

@inproceedings{Howes2009LimitationsOH,
  title={Limitations of Hall MHD as a model for turbulence in weakly collisional plasmas},
  author={Gregory G. Howes},
  year={2009}
}
The limitations of Hall MHD as a model for turbulence in weakly collisional plasmas are explored using quan titative comparisons to Vlasov-Maxwell kinetic theory ove r a wide range of parameter space. The validity of Hall MHD in the cold ion limit is shown, but spurious undamped wave modes exist in Hall MHD when the ion temperature is finite. It is argued that turbulence in the dissipation range of the solar wind must be one, or a mixture, of three electromagnetic wave modes: the parallel… CONTINUE READING