Proceedings of IAU 163: Radiation-Driven Warping: The Origin of Warps and Precession in Accretion Disks

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dc.creatorMaloney, Philip R.
dc.creatorBegelman, Mitchell C.
dc.date1996-12-11
dc.date.accessioned2026-07-07T02:22:32Z
dc.date.available2026-07-07T02:22:32Z
dc.descriptionA geometrically thin, optically thick, warped accretion disk with a central source of luminosity is subject to non-axisymmetric forces due to radiation pressure; the resulting torque acts to modify the warp. Initially planar accretion disks are unstable to warping driven by radiation torque, as shown in a local analysis by Pringle (1996) and a global analysis of the stable and unstable modes by Maloney, Begelman, & Pringle (1996). In general, the warp also precesses. We discuss the nature of this instability, and its possible implications for accretion disks in X-ray binaries and active galactic nuclei. Specifically, we argue that this effect provides a plausible explanation for the misalignment and precession of the accretion disks in X-ray binaries such as SS 433 and Her X-1; the same mechanism explains why the maser disk in NGC 4258 is warped.
dc.description10 pages, latex, paspconf.sty (included), 3 figures. To Appear in Proceedings of IAU #163, "Accretion Phenomena and Associated Outflows", (cf. also astro-ph/9612110, which also appears in ApJ, 472, p. 582)
dc.identifierhttps://arxiv.org/abs/astro-ph/9612111
dc.identifierhttp://arxiv.org/abs/astro-ph/9612111
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/10912
dc.subjectAstrophysics
dc.titleProceedings of IAU 163: Radiation-Driven Warping: The Origin of Warps and Precession in Accretion Disks
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