The Hall effect in accretion flows

  title={The Hall effect in accretion flows},
  author={Catherine Braiding and Mark Wardle},
  journal={Monthly Notices of the Royal Astronomical Society},
  • C. Braiding, M. Wardle
  • Published 29 August 2012
  • Physics
  • Monthly Notices of the Royal Astronomical Society
Magnetic diffusion in accretion flows changes the structure and angular momentum of the accreting material. We present two power-law similarity solutions for flattened accretion flows in the presence of magnetic diffusion: a secularly evolving Keplerian disc and a magnetically diluted free fall on to the central object. The influence of Hall diffusion on the solutions is evident even when this is small compared to ambipolar and Ohmic diffusion, as the surface density, accretion rate and angular… 

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