Formation of electron depletion layer and parallel electric field in the separatrix region of anti-parallel magnetic reconnection

Li Zisheng^{1, 2}, Wang Huanyu^{1, 2, †}, Gao Xinliang^{1, 2}

(a) The parallel electrostatic potential Φ ∥ along the separatrix for run 1 at Ω i 0 t = 21.25 (black solid line), run 2 at Ω i 0 t = 19 (blue solid line), run 3 at Ω i 0 t = 17.5 (green solid line), and run 4 at Ω i 0 t = 16.5 (red solid line). (b) The parallel electrostatic potential Φ ∥ along the separatrix for run 5 at Ω i 0 t = 21 (red solid line), run 6 at Ω i 0 t = 19.5 (blue solid line), run 3 at Ω i 0 t = 17.5 (green solid line), and run 7 at Ω i 0 t = 16.75 (red solid line). In the figure, the black dashed lines denote the value Φ ∥ / v A B 0 d i = 0 .