The X-ray/UV ratio in Active Galactic Nuclei: dispersion and variability

Elia Chiaraluce, Fausto Vagnetti, Francesco Tombesi +1

The relation between the ${\alpha }_{OX}$ index and the optical/UV luminosity ($L_{UV}$), a by product of the X-ray - optical/UV luminosity relation, is affected by a relatively large disp…