Radiation-driven Warping: The Origin of Warps and Precession in Accretion Disks

摘要: A geometrically thin, optically thick, warped accretion disk with a central source of luminosity is subject to nonaxisymmetric forces due radiation pressure; the resulting torque acts modify warp. In recent paper, J. E. Pringle used local analysis show that initially planar disks are unstable warping driven by torque. Here we extend this work global stable and modes. We confirm Pringle's conclusion centrally illuminated generically via mechanism; discuss time evolution likely steady state such systems, specifically mechanism can explain water masers in NGC 4258 164 day precession period SS 433. Radiation-driven provide robust for producing warped, precessing active galactic nuclei X-ray binary systems.