Fig. 4
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Product of wind X-ray opacity κE times wind density ρ as a function of energy. The opacity and wind density are computed from the CMFGEN models of Raucq et al. (2016) at a distance r = a/2 from the stellar centre. The continuous red line (labelled 1) shows the results for the primary star, whereas the dashed blue line (labelled 2) corresponds to the secondary star of HD 149404.
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