Timescales of Quasar Accretion Discs from Low to High Black Hole Masses and a Turnover at the High Mass End

C. Wolf, S. Lai, J. -J. Tang +1

Characteristic time scales in the stochastic UV-optical variability of quasars may depend on the mass of their black holes, $M_{\mathrm{BH}}$, as much as physical timescales in their ac…