A Thermodynamic Approach to the Magnetospheric Complexity: The Role of Fluctuations |
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| Authors: | Giuseppe Consolini Paola De Michelis Matthieu Kretzschmar |
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| Institution: | (1) Istituto di Fisica Spazio Interplanetario, INAF, 00133 Rome, Italy;(2) Istituto di Nazionale di Geofisica e Vulcanologia, 00143 Rome, Italy;(3) Royal Observatory of Belgium, 1180 Brussels, Belgium |
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| Abstract: | 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 detail we discuss 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. |
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| Keywords: | Earth’ s magnetosphere dynamics complexity thermodynamics fluctuations |
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