Solar Physics

, Volume 163, Issue 1, pp 193–203 | Cite as

A nonlinear RLC solar cycle model

  • J. M. Polygiannakis
  • X. Moussas
  • C. P. Sonett


A simplified, monoparametric model, based on the Van der Pol nonlinear RLC electric oscillator, is found capable of describing the shape and related morphological properties (such as the Waldmeier effect) of the sunspot cycles. The model can also exhibit long periods of sunspot inactivity of the Maunder Minimum type. According to the model, the significant rise-to-fall time asymmetry of the most recent cycles suggests that it is unlikely that another cycle suppression will occur in the forthcoming decades. The complete sunspot record and the system's attractor are successfully emulated, given the sunspot number at cycle maxima.


Solar Cycle Sunspot Number Cycle Model Sunspot Cycle Cycle Suppression 
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Copyright information

© Kluwer Academic Publishers 1996

Authors and Affiliations

  • J. M. Polygiannakis
    • 1
  • X. Moussas
    • 1
  • C. P. Sonett
    • 2
  1. 1.Section of Astronomy, Astrophysics and Mechanics, Department of PhysicsNational University of AthensAthensGreece
  2. 2.Department of Planetary SciencesLunar and Planetary LaboratoryTucsonU.S.A.

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