黑洞周围的扭曲和偏心圆盘
Warped and eccentric discs around black holes
摘要：
X射线双星中黑洞周围的吸积盘在黑洞的自旋轴不垂直于双星轨道平面的情况下发生翘曲。它们也可以通过与双星轨道共振的不稳定性而变得偏心。取决于盘的厚度和耗散过程的效率，这些全局变形可能能够以静态弯曲波或密度波的形式传播到盘的最内部。我们描述的解决方案中的线性政权和讨论的条件下，翘曲或偏心可能会产生显着的活动在内部区域，这可能包括准周期振荡的激发。
英文摘要：
Accretion discs around black holes in X-ray binary stars are warped if the spin axis of the black hole is not perpendicular to the binary orbital plane. They can also become eccentric through an instability involving a resonance with the binary orbit. Depending on the thickness of the disc and the efficiency of dissipative processes, these global deformations may be able to propagate into the innermost part of the disc in the form of stationary bending or density waves. We describe the solutions in the linear regime and discuss the conditions under which a warp or eccentricity is likely to produce significant activity in the inner region, which may include the excitation of quasi-periodic oscillations.
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