Normalised excess variance versus log(L2−10 keV) for the ULXs. The dotted-filled region indicates the area with BH mass of (2.5−30) × 103 M⊙ and accretion rates of ṁEdd = (0.01−0.8). Dashed lines indicate the case B model for AGN-like objects with a BH mass of (2.5−30) × 103 M⊙ (from left to right along each line), and for accretion rates of ṁEdd = [0.01, 0.05, 0.1, 0.2, 0.5, 0.8] (from top to bottom).
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