Radial profiles of Metis pB (red lines), H I Lyman-α intensity (blue lines), FSI Fe IX/Fe X 17.4 nm intensity (thick grey lines), and the square root of FSI intensity (thick black lines) for the eastern streamer (left panel) and the western streamer (right panel). In order to be comparable, all profiles are normalized to their average value in the overlapping region between 4.05 and 4.45 R_⊙, indicated in plots by the vertical green arrows.