We present the perturbed version of the Photometric-Magnetic Dynamical (PhMD) model for describing the sunspot evolution. This involves fluctuating the magnetic flux inflow into the sunspot, by a harmonic perturbation with frequency equal to that of the solar rotation. The nonlinear dynamical system is studied either for the conservative or for the dissipative case.
CITATION STYLE
Livadiotis, G., & Moussas, X. (2009). The perturbed photometric-magnetic dynamical model for the sunspot evolution. In Astrophysics and Space Science Proceedings (Vol. 0, pp. 455–459). Springer Science and Business Media B.V. https://doi.org/10.1007/978-3-540-75826-6_46
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