Spectral profiles of GJ 3470 FUV lines in Visit E. Each row corresponds to a stellar line, ordered from top to bottom by decreasing formation temperature. Black profiles show quiescent stellar lines. Red profiles correspond to the flaring exposures in the second (left column) and third (right column) HST orbits of the visit. Lines are plotted as a function of wavelength in the expected stellar rest frame. The N V and Si IV doublets have been coadded and are plotted in velocity space. Vertical dashed lines correspond to the expected rest position of the stellar lines.