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Paper: The General Physics of WARPS
Volume: 160, Astrophysical Discs: An EC Summer School
Page: 53
Authors: Pringle, J. E.
Abstract: We address the general theory of how warps propagate through gaseous centrifugally supported discs. In low viscosity, near Keplerian discs, such as are found around young stars, a warp can propagate as a non-dispersive wave at about half the sound speed. For most other discs, such as those found in X-ray binaries and in active galactic nuclei, the warp propagates in a diffusive fashion. We address briefly the generation of disc warps, including dynamical interactions, forced precession of a misaligned disc, and the radiation-driven warping instability.
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