SIMBAD references

We have calculated UV/EUV (300A≤λ≤1500A) continuous energy distributions of accretion disks in the centers of active galactic nuclei (AGNs) for disk luminosities in the range 0.1xL_Edd≤L_acc< 1.0xL_Edd and central masses ranging from 10⁸M_☉ to 10¹⁰M_☉. The vertical gas pressure structure of the disk is obtained analytically, the temperature stratification and the resulting continuum radiation fields are calculated numerically. We show that weak Lyman edges are an intrinsic feature of such disks. The strength of the H I Lyman edge decreases for increasing accretion rate and fixed mass of the central black hole. It increases for increasing central mass and fixed luminosity in terms of the Eddington luminosity.