Fig. 5
From: Inference of field reversed configuration topology and dynamics during Alfvenic transients

Inference of Alfvenic oscillations. a Hooke’s constant as obtained from the inferred magnetic configuration. b Estimated particle inventory as stored in the C-2U database. c Electromagnetic force (solid green), plasma mass times acceleration (red) and Hooke’s constant times axial plasma displacement (blue). The shaded area corresponds to one standard deviation