Turbulent dynamos with advective magnetic helicity flux

  title={Turbulent dynamos with advective magnetic helicity flux},
  author={Fabio Del Sordo and Gustavo Guerrero and Arnd Brandenburg},
Many astrophysical bodies harbour magnetic fields that are thought to be sustained by a dynamo process. However, it has been argued that the production of large-scale magnetic fields by meanfield dynamo action is strongly suppressed at large magnetic Reynolds numbers owing to the conservation of magnetic helicity. This phenomenon is known as catastrophic quenching. Advection of magnetic fields by stellar and galactic winds towards the outer boundaries and away from the dynamo is expected to… CONTINUE READING
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