Mock L_X − L_UV with fixed f_max = 0.5 and different μ color coded, as in Fig. 1. The connected solid points show the trend of a single typical mass (log m = 8.7) with ṁ = 0.03, 0.07, 0.17, 0.42, 1 (increasing from left to right in L_UV). The dashed lines indicate a slope of one. The distributions of transparent points show the mock L_X − L_UV for a range of , and Γ = 2.1 ± 0.1, that follows the typically observed objects (see Sect. 4).