Local Analysis of Nonlinear Oscillations of Thin Accretion Disks
arXiv:0802.1594 · doi:10.1093/pasj/60.3.605
Abstract
We calculated the coupling coefficients for non-linear, quasi-local oscillatory modes of thin accretion disks. We found that several of them are non-zero. Mode coupling is a necessary condition for a resonance, and thus our results may be relevant for the recently discussed QPO resonance model.
15 pages, to be published in PASJ Vol. 60 No. 3