Hydrodynamical activity in thin accretion disks
arXiv:0801.0699 · doi:10.1016/j.newar.2008.03.011
Abstract
An asymptotic treatment of thin accretion disks, introduced by Kluźniak & Kita (2000) for a steady-state disk flow, is extended to a time-dependent problem. Transient growth of axisymmetric disturbances is analytically shown to occur on the global disk scale. The implications of this result on the theory of hydrodynamical thin accretion disks, as well as future prospects, are discussed.
To appear in New Astronomy Review, Proc. of "J-P. Lasota, X-ray binaries, accretion disks and compact stars" (October 2007); Abramowicz, M. Ed