Continuum Spectra of Quasar Accretion Disk Models

Details Continuum Spectra of Quasar Accretion Disk Models Continuum Spectra of Quasar Accretion Disk Models

1997-12-11

arxiv.org/abs/astro-ph/9712162v1

Astronomy and Astrophysics

Astrophysics

4 pages, 3 figures, to appear in "Accretion Processes in Astrophysical Systems: Some Like it Hot," proceedings of the 8th Annu

Scientific paper

10.1063/1.55893

We have calculated the spectrum and polarization of a standard thin accretion disk with parameters appropriate for a bright quasar. This model improves upon previous work by including ultraviolet metal line opacities, assumed for now to be in LTE. Though not yet fully self-consistent, our calculations demonstrate that metal lines can change the spectral slope, reduce the polarization, and reduce the Lyman edge feature in accretion disk spectra. Some observational differences between quasar spectra and accretion disk models might be reconciled with the inclusion of metal lines.

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