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Royal Observatory of Belgium, 1180 Brussels, Belgium
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- PublicationRestrictedA THERMODYNAMIC APPROACH TO THE MAGNETOSPHERIC COMPLEXITY: THE ROLE OF FLUCTUATIONS(2006)
; ; ; ;Istituto di Fisica Spazio Interplanetario, INAF, 00133 Rome, Italy ;Istituto di Nazionale di Geofisica e Vulcanologia, 00143 Rome, Italy ;Royal Observatory of Belgium, 1180 Brussels, Belgium ;Consolini, G.; 1Istituto di Fisica Spazio Interplanetario, INAF ;De Michelis, P.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia ;Kretzschmar, M.; Royal Observatory of Belgium, 1180 Brussels, Belgium ;; Recent studies evidenced that the magnetotail dynamics looks like the one of an avalanching system. This fact has been related with a near criticality dynamics and modelled by singular diffusion and transport equations. Here, we discuss some features of the Earth’s magnetotail dynamics using a thermodynamic approach. In detailwediscuss the role played by fluctuations in singular diffusion and relaxation processes from a non-equilibrium thermodynamics point of view. Moreover, the emergence of non-Gaussian statistics is discussed in the framework of the thermodynamics of composite systems.158 24