Fig. 5.
Radial distributions of the electron plasma parameters and the magnetic fields. Panels a–g show electron number density (Ne), magnetic field strength (Bt), perpendicular pressure (Pe⊥), total pressure (Ptotal), perpendicular temperature (Te⊥), parallel temperature (Te||), and electron tangential bulk velocity (Veϕ). The x-axis is the distance (r) between the measuring position and the center of the ESMC. In each panel, solid dots with error bars represent direct observations, and the spacecraft are labeled as different colors. The orange curves represent a trend of the collective. In panel g, the purple curve is a diamagnetic drift velocity (Vd) estimated from Pe⊥. The dashed line marks the radius of the ESMC (i.e., RMC) obtained by the sounding technique. The error bars are instrumental errors directly obtained from the FPI data product except for Ptotal, which is derived from its definition and the propagation of error