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Structure of line-emitting accretion disks in active galactic nuclei - ARP 102B
Chen, Kaiyou; Halpern, Jules P.
AA(Columbia University, New York), AB(Columbia University, New York)
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 344, Sept. 1, 1989, p. 115-124. (ApJ Homepage)
Publication Date:
NASA/STI Keywords:
Accretion Disks, Active Galactic Nuclei, Radio Galaxies, Balmer Series, Electron Scattering, Emission Spectra, Gravitational Effects, Luminosity, Photoionization
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The prime objects of the present self-consistent model of a line-emitting accretion disk able to account for the properties observed in a small class of AGNs are Arp 102B and 3C 390.3, whose double-peaked emission lines have been attributed to a Keplerian disk. Improved calculations of the line profile of a relativistic Keplerian disk, generalized to include a variety of emissivity laws as well as local broadening due to electron scattering or turbulence, are noted to fit Arp 102B; analytic and numerical calculations of the solid angle presented by the outer thin disk to an extended isotropic source of illumination demonstrate that the energy budget requirements for line emission from the disk are also satisfied.

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