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Accretion Discs in AGN, Viscosity and Structure of Accretion Disks

Published online by Cambridge University Press:  22 November 2011

B. Rocca-Volmerange ,
H. Sol ,
J.-M. Hure  and
D. Richard
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Abstract

Early, it has been suggested that Keplerian flows should beunstable regarding shear instabilities. This hypothesis, not seriouslyconsidered nowadays, is strongly sustained by a recent re-analysis ofexperimental data on shear flows and new laboratory experiments. Wereview some consequences on steady state accretion dises of a viscositylaw derived from shear experiments. In particular, we show thatit wholly suppresses the thermal and viscous instabilities within theradiation pressure dominated region, unlike the standard theory.

Type
Research Article
Information
European Astronomical Society Publications Series , Volume 1: AGN in their cosmic environment , 2001 , pp. 53 - 61
Copyright
© EAS, EDP Sciences 2002

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