On the dynamics of vortex modes within magnetic islands

  title={On the dynamics of vortex modes within magnetic islands},
  author={W. A. Hornsby and A. G. Peeters and Mattia Siccinio and Emanuele Poli},
  journal={Physics of Plasmas},
Recent work investigating the interaction of magnetic islands with micro-turbulence has uncovered the striking observation of large scale vortex modes forming within the island structure [W. A. Hornsby et al., Phys. Plasmas 17, 092301 (2010)]. These electrostatic vortices are found to be the size of the island and are oscillatory. It is this oscillatory behaviour and the presence of turbulence that leads us to believe that the dynamics are related to the geodesic acoustic mode (GAM), and it is… 

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