Flux integrated over the stable (empty symbols) and absorbed spectral ranges (filled symbols) in the C II λ1334.5 (squares) and C II λ1335.7 (triangles) lines in Visit B_fuv. Fluxes are normalized by their value in the quiescent spectra (see text). Upper panel: The absorbed range extends from 5 to 41 km s⁻¹. The stable range is its complementary within –100 to 100 km s⁻¹. Lower panels: The absorbed range extends from –53 to –22 km s⁻¹ in the top panel and from –27 to 18 km s⁻¹ in the bottom panel. The stable range is defined as [–100,–53] + [18,100] km s⁻¹. Absorption in the line core is diluted because the flux is integrated over a spectral range encompassing both exposures 1 and 2 signatures.