Figure 5.

(Upper) Illustration of representative orbits of ions, one crossing and the other moving toward the center of the shear layer, from the initial state until a quarter of ion gyroperiod in the negative FAV case (red solid arrows) and no shearing flow case (black dashed arrows). (Below) Profiles at T=1.5 Ω_i⁻¹ (∼a quarter of ion gyroperiod) of ion density (b), difference between ion and electron densities (c), and electric field E_Y component (d) in the D₀=0.5 and negative FAV case. Narrow lines in Figs. 5c, 5d show initial profiles of (n_i−n_e) and E_Y, respectively.