RMxAA

Revista Mexicana de Astronomía y Astrofísica

ISSN: 3061-8649
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Keywords

Accretion Disks: Active Galactic Nuclei
Accretion Disks: Black Holes
Accretion Disks: Synthetic Spectra
Accretion Disks: UV Spectra
Accretion Disks: X-Ray Spectra

How to Cite

Thermal continua of AGN disks: atmospheres, Lyman edges, and soft X-rays. (1993). Revista Mexicana De Astronomía Y Astrofísica, 27(1), 95-98. https://astronomia.unam.mx/journals/rmxaa/article/view/1993rmxaa..27...95c

Abstract

Ultraviolet and soft X-ray continuum spectra are calculated for thin, radiation-pressure-dominated disks using model atmospheres characterized by appropriately low effective gravities. Relativistic and non-LTE effects are incorporated in the calculations. In agreement with observations, Lyman edges are found to be insignificant over a wide range of masses, accretion rates, and viewing angles. The range of soft X-ray luminosities is consistent with observations if the disks are assumed to orbit maximally rotating black holes.
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