Small-scale Induced Large-scale Transitions in Solar Wind Magnetic Field | Zendy

Tommaso Alberti | Zendy; Davide Faranda | Zendy; Reik V. Donner | Zendy; Théophile Caby | Zendy; V. Carbone | Zendy; Giuseppe Consolini | Zendy; B. Dubrulle | Zendy; Sandro Vaienti | Zendy

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Small-scale Induced Large-scale Transitions in Solar Wind Magnetic Field

Author(s) -

Tommaso Alberti,

Davide Faranda,

Reik V. Donner,

Théophile Caby,

V. Carbone,

Giuseppe Consolini,

B. Dubrulle,

Sandro Vaienti

Publication year - 2021

Publication title -

the astrophysical journal letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 3.639

H-Index - 201

eISSN - 2041-8213

pISSN - 2041-8205

DOI - 10.3847/2041-8213/ac0148

Subject(s) - dissipative system , scale (ratio) , physics , statistical physics , attractor , magnetic field , solar wind , inertial frame of reference , crossover , noise (video) , classical mechanics , mathematics , computer science , mathematical analysis , quantum mechanics , artificial intelligence , image (mathematics)

We investigate the role of small-scale dynamics in inducing large-scale transitions in the solar wind magnetic field by means of dynamical system metrics based on instantaneous fractal dimensions. By looking at the corresponding multiscale features, we observe a break in the average attractor dimension occurring at the crossover between the inertial and the kinetic/dissipative regime. Our analysis suggests that large-scale transitions are induced by small-scale dynamics through an inverse cascade mechanism driven by local correlations, while electron contributions (if any) are hidden by instrumental noise.

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