Luminosity of C IV and O VIII lines synthesized from the models for the case of a train of blobs (red dots; Sim-Tr) and for the case of randomly fragmented stream (blue dot; Sim-Frag). The luminosity derived from UV and X-ray observations of three well-studied CTTSs are superimposed (black dots; MP Mus, Argiroffi et al. 2007; TW Hya, Brickhouse et al. 2010; V4046 Sgr, Argiroffi et al. 2012).
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