Fig. 10From: Characteristics of storm time ion composition in the near-Earth plasma sheet using Geotail and RBSP measurementsBased on Geotail and RBSP-A observations, variation of energy density ratio for O+/H+ and He+/H+ with respect to Kp is shown. Blue and pink data points correspond to the energy density ratios of O+/H+ and He+/H+, respectively. Black-colored regression line corresponds to each data setBack to article page