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In a world increasingly facing new challenges at the forefront of plasma scientific research and technological innovation, CNR and ISTP pledge progress and achieve an impact in the integration of research into societal practices and policy

Building Up Solar-wind-like 3D Uniform-intensity Magnetic Fields

Valentini, Francesco; Malara, Francesco; Sorriso-Valvo, Luca; Bruno, Roberto; Primavera, Leonardo

A numerical model representing a 3D turbulent constant-magnitude magnetic field B is described. Assuming a form for two components of the vector potential, the third component is calculated such as to obtain a uniform intensity for B. Singular surfaces are always present in the solution, in the form of rotational discontinuities. Using a spectrum for derivatives of the given vector potential components that satisfies the critical-balance condition, an anisotropic spectrum for B is obtained, with a prevalence of perpendicular wavevectors k(perpendicular to) and a Kolmogorov power-law range with respect to k(perpendicular to). These features make the model suitable to represent magnetic turbulence in solar wind fast-speed streams.

ID 415452
DOI 10.3847/2041-8213/ab31f8
PRODUCT TYPE Journal Article
LAST UPDATE 2022-02-04T10:58:39Z
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