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Accretion Disk Line Emission in AGN: A Devil's Advocacy by Sulentic, J. W.; Marziani, P.; Dultzin-Hacyan, D. is a scholarly article available to read on EtoBox.

What is Accretion Disk Line Emission in AGN: A Devil's Advocacy about?

We review the evidence for AGN optical and X-ray broad line emission from an accretion disk. We argue that there is little, if any, statistical evidence to support this assertion. The inconsistency is strongest for the rare class of Balmer profiles that show double peaks. The line profiles predicted by a simple illuminated disk model are often incompatible with the observations. We suggest that the Fe Kalpha line in Seyfert 1 galaxies, where a broad line is most often and most strongly detected, is actually a composite of two lines both with Gaussian profiles; one narrow/unshifted and the other broad/redshifted.

Author

Sulentic, J. W.; Marziani, P.; Dultzin-Hacyan, D.

Published

1998

Language

EN