Fig. 4
90% upper limits on velocity broadening obtained in the 0.8′ region for the O viii lines compared with those measured for high-ionization Fe xx (open red triangles) and for the low-ionization Fe xvii (filled black triangles) line systems. For six sources we could also measure the limits for the hot (open green circles) and the cool (open magenta boxes) CIE components (see Sect. 5.1).
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