Multiwavelength properties of unobscured AGN

We confirm the tight correlation (scatter=0.45dex) between UV (2500{AA}) and X-ray (2keV) luminosity for our sample. We observe a significant decrease in {alpha}_ox_ with Lbol} and {lambda}_Edd_, suggesting that brighter sources emit more UV photons per X-rays. We report a second-order regression relation (scatter=0.15dex) between the 2-10keV bolometric correction ({kappa}_2-10_) and {alpha}_ox_, which is useful to compute Lbol in the absence of multiband SEDs.

We also investigate the dependence of optical/UV bolometric corrections on the physical properties of AGN and obtain a significant increase in the UV bolometric corrections ({kappa}_W2_ and {kappa}_M2_) with Lbol and {lambda}_Edd_, unlike those in the optical ({kappa}_V_ and {kappa}_B_), which are constant across five orders of L_bol and {lambda}_Edd_. We obtain significant dispersions (~0.1-1dex) in all bolometric corrections, and hence recommend using appropriate relations with observed quantities while including the reported scatter, instead of their median values.