Accretion-disk coronae in QSOs

Details Accretion-disk coronae in QSOs Accretion-disk coronae in QSOs

Aug 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991pasp..103..748s&link_type=abstract

Astronomical Society of the Pacific, Publications (ISSN 0004-6280), vol. 103, Aug. 1991, p. 748-751.

Astronomy and Astrophysics

Astronomy

Accretion Disks, Quasars, Stellar Coronas, Black Holes (Astronomy), Optical Thickness, Stellar Models, Stellar Temperature

Scientific paper

Some potential problems for accretion-disk models are discussed. Radiation pressure on gas in the hypothesized accretion disks of QSOs will result in a corona. The coronal temperature will be more than 10 to the 8th K. The implied mass-loss rate suggests that the Compton optical depth may be large unless some physical process disrupts the mass loss. As a result there may be a problem for observation of the ultraviolet photoionizing continuum since it would be Compton scattered to X-ray energies in contradiction to observations. Accretion disk models should include schemes to disrupt the mass loss if they are to be consistent with observations.

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