The spectra of accretion discs in active galactic nuclei

Details The spectra of accretion discs in active galactic nuclei The spectra of accretion discs in active galactic nuclei

Mar 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992xrea.conf..117r&link_type=abstract

In MPI für Extraterrestrische Physik, X Ray Emission from Active Galactic Nuclei and the Cosmic X Ray Background p 117-122 (SEE

Physics

Accretion Disks, Active Galactic Nuclei, Spectral Emission, X Ray Spectra, Compton Effect, Extreme Ultraviolet Radiation, Luminosity, Mathematical Models, Radiant Flux Density, Radiation Absorption, Spectrum Analysis

Scientific paper

Fully self consistent calculations of the spectra emitted by active galactic nuclei accretion disks are presented. The inner, radiation dominated regions of standard, alpha disks are treated. Incoherent Compton scattering and emission/absorption of radiation by hydrogen and helium are included in computing the vertical temperature structure within the disk and the emergent spectrum. At high accretion rates (L approximately L edd) comptonization modifies the extreme ultraviolet/soft X-ray continuum and the He2 spectral features. In particular, an important fraction of the emergent flux appears in the form of a steep soft X-ray spectrum.

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