吸积盘物理 :稳定性和振动(英文)

Accretion Disk Physics: Stability and Oscillations

研究了环绕致密天体的吸积盘的稳定性质和振动模式。特别关注了在热致和粘滞扰动作用下稳定的对流起支配作用的盘外流。还研究了相对论性吸积盘的振动模式。一些在盘内的捕获的 ,非衰减的模式也许可以用来解释X射线双星和活动星系核中所观测到的准周期振动。

Stability properties and oscillation modes of accretion disks around compact objects are studied in this paper. Special attentions are paid on the advection- dominated accretion flows, which are shown to be stable against thermal and viscous perturbations. The oscillation modes in a relativistic accretion disk are investigated and some trapped, non-damping modes in the inner disk part can probably be employed to explain the observed quasi-periodic oscillations in X-ray binaries and AGNs