Correlations between X-ray properties and Black Hole Mass in AGN: towards a new method to estimate black hole mass from short exposure X-ray observations

Julian A. Mayers, Kathy Romer, Arya Fahari +14

Several investigations of the X-ray variability of active galactic nuclei (AGN) using the normalised excess variance (${\sigma }_{\mathrm{NXS}}^2$) parameter have shown that variability has a…