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Tearing Instability and Periodic Density Perturbations in the Slow Solar Wind

  • Authors: Victor Réville, Marco Velli, Alexis P. Rouillard, Benoit Lavraud, Anna Tenerani, Chen Shi, and Antoine Strugarek

2020 The Astrophysical Journal Letters 895 L20.

  • Provider: AAS Journals

Caption: Figure 2.

Top panel: cuts of the radial field structure close to the HCS for three of the simulations. Dashed lines shows formulation (1) using ﹩| A| \,=| {B}_{Z}(R=5,Z=2)| ﹩ and the best fit for a. Bottom panel: aspect ratio a/L of the current sheet as a function of the Lundquist number for all six simulations. The plain blue line is obtained using L = 4R and the shaded area spans L ∈ [2R, 6R]. The critical aspect ratio a/L = S−1/3 is shown in plain black, while the Sweet–Parker aspect ratio a/L = S−1/2 is represented with the dashed line.

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