Internal solar rotation and the boundary layer non-linear dynamo

  • G. Belvedere
  • M. R. E. Proctor
  • G. Lanzafame
Part V Inverse Problems of Solar Oscillations
Part of the Lecture Notes in Physics book series (LNP, volume 367)


Most recent helioseismological results suggest the location of dynamo action in the boundary layer between the radiative and convective zones. This is confirmed by some preliminary results of a non-linear dynamo model in a spherical shell (0.05 Re thick, with full time and latitude resolution. The internal solar rotation profile deduced by helioseismological data is assumed. Periodic symmetric regime is found for negative helicity and absolute values of the dynamo number of order unity. These small values are compatible with the steep radial angular velocity gradient in the boundary layer.


Boundary Layer Spherical Shell Convection Zone Differential Rotation Solar Dynamo 
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Copyright information

© Springer-Verlag 1990

Authors and Affiliations

  • G. Belvedere
    • 1
  • M. R. E. Proctor
    • 2
  • G. Lanzafame
    • 1
  1. 1.Istituto di AstronomiaUniversity di CataniaItaly
  2. 2.Department of Applied Mathematics and Theoretical PhysicsUniversity of CambridgeEngland

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