Fig. 2: Measurements and model of the electron distribution.
From: Laboratory measurements of the physics of auroral electron acceleration by Alfvén waves
a The background distribution ge0(vz) obtained by averaging ge(vz) over Alfvén wave phase \({\phi }_{{E}_{z}}\) referenced to Ez. b Measured perturbations δge are coherent with Alfvén wave phase \({\phi }_{{E}_{z}}\). c A solution to the linearized Boltzmann equation accurately models ge1 caused by Alfvén waves in this experiment. WWAD measurements of ge(vz) are unavailable in the region between the vertical dashed lines.
