Nonlinear magnetic diffusion and magnetic helicity transport in galactic

@inproceedings{Kleeorin2002NonlinearMD,
  title={Nonlinear magnetic diffusion and magnetic helicity transport in galactic},
  author={Nathan Kleeorin and David Moss and I. V. Rogachevskii and Dmitry D Sokoloff},
  year={2002}
}
We have extended our previous mean-field galactic dynamo model which included algebraic and dynamic alpha nonlinearities (Kleeorin et al. 2002), to include also a quenching of the turbulent diffusivity. We readily obtain equilibrium states for the large-scale magnetic field in the local disc dynamo model, and these fields have strengths that are comparable to the equipartition field strength. We find that the algebraic nonlinearity alone (i.e. quenching of both the α effect and turbulent… CONTINUE READING

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