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Fig. 2

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Wind-fed power Pacc of Cyg X-3 as a function of the EUV irradiation (EFE in units of 2 × 1036 erg s−1 at 100 eV) as computed with the Bondi-Lyttleton formalism (solid line with error bars) from the wind velocities of Table 1. A similar relation for the bolometric luminosity Leqpair = Lbol of the X-ray source itself is shown by the dashed line, and it was obtained by EQPAIR modeling of X-ray spectra (Hjalmarsdotter et al. 2009). The horizontal line shows the power provided by the wind without EUV irradiation (NOX). The positions of the hard and very high spectral states are marked (HARD and VH). The vertical line shows the amount of power going to kinetic and advective parts.

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