Subset of all hard state observations with detected radio fluxes, using the same color-coding as in Fig. 9. The symbol shapes show the rising (up-pointing triangle) and decaying (down-pointing triangle) hard state. Top: distribution of these observations in the ṁ_in−r_J plane (x-axis at top). Middle: spectral index of the power law Γ_PL from the Clavel et al. (2016) as function of the ṁ_in from our fits. Bottom: theoretical spectra associated with each solution (r_Jṁ_in) in the (theoretical) RXTE range 2−300 keV.