The Structure and Spectrum of Accretion Disks in Active Galactic Nuclei

Details The Structure and Spectrum of Accretion Disks in Active Galactic Nuclei The Structure and Spectrum of Accretion Disks in Active Galactic Nuclei

Dec 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996aas...18910002s&link_type=abstract

American Astronomical Society, 189th AAS Meeting, #100.02; Bulletin of the American Astronomical Society, Vol. 28, p.1407

Astronomy and Astrophysics

Astronomy

Scientific paper

We present a calculation of the vertical structure and spectrum of a viscously heated accretion disk around a massive non-rotating black hole. After finding the radial dependence of vertically-integrated quantities for these disks, we solve the equations of hydrostatic equilibrium, energy balance, and frequency-dependent radiation transfer as functions of altitude. To solve the last set of equations, we use a variable Eddington factor method. We include electron scattering, free-free, and HI, HeI, and HeII bound-free opacities and the corresponding continuum cooling processes. We find that Lyman edge features, both in emission and absorption, are a generic feature of these disks and that previous calculations have underestimated the amplitude of the edge.

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