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Fig. 6
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Selected normalised line profiles for the O6 model for clumping factors D = 1, 2, 4, 8. Upper panel:He II Hα line profile. Lower panel: He II Piα (4–6, 10 123 Å) and H I Pδ line with an emission peak of the He II 6–14 line (10 048 Å) line profiles.
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