Fig. 6From: Electron beam-associated symmetric electrostatic solitary waves on the separatrix of magnetic reconnection: multi-spacecraft analysisDistribution of the electron phase space density (PSD) as a function of energy. a, b C1. c, d C2. e, f C3. g, h C4. Panels in the left column show the distribution within the former spin period while the panels in the right column show those in the latter spin period of the four spacecrafts. The black, red, and green lines in each subplot denote the phase space density at 0°, 90°, and 180° pitch angles, respectivelyBack to article page