N V doublet averaged over all visits, as a function of velocity relative to the line centers (vertical dotted lines). The upper panel shows the N V λ1238.8 line. The lower panel shows the N V λ1242.8 line. Compared to the quiescent spectra (black), the absorbed spectra blue) show a signature consistent with absorption from an optically thin cloud of ionized nitrogen gas. The green (before convolution) and red (after convolution) profiles correspond to a best-fit model for the intrinsic stellar line (solid line) and the occulting cloud (dashed line). The fit accounts for a weak stellar N I line at 1243.18 Å (90.5 km s⁻¹ in the lower panel).