Astrophysical discs are often warped, that is, their orbital planes change with radius. This occurs whenever there is a non-axisymmetric force acting on the disc, for example the Lense–Thirring precession induced by a misaligned spinning black hole, or the gravitational pull of a misaligned companion. Such misalignments appear to be generic in astrophysics. The wide range of systems that can harbour warped discs—protostars, X-ray binaries, tidal disruption events, quasars and others—allows for a rich variety in the disc’s response. Here we review the basic physics of warped discs and its implications.
CITATION STYLE
Nixon, C., & King, A. (2016). Warp propagation in astrophysical discs. In Lecture Notes in Physics (Vol. 905, pp. 45–63). Springer Verlag. https://doi.org/10.1007/978-3-319-19416-5_2
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