Lyman edges in AGN accretion discs

Details Lyman edges in AGN accretion discs Lyman edges in AGN accretion discs

Jul 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990mnras.245p...1c&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 245, July 1, 1990, p. 1P-3P.

Astronomy and Astrophysics

Astronomy

12

Accretion Disks, Active Galactic Nuclei, Lyman Spectra, Black Holes (Astronomy), Quasars, Spectrum Analysis, Thermal Emission, Ultraviolet Radiation

Scientific paper

It is shown that the basic difference in the two principal approaches to predictions of the Lyman edge in an accretion disk lies in the implicit assumption about the density of the radiating gas. Independent from the details, models predict a broad range of the edge sizes, both in absorption and in emission. Observed spectra do not exhibit any strong feature at 912 A, but may still be consistent with an accretion disk mechanism if more advanced theory is developed.

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