论文标题
持续的kozai-lidov振荡在未对准的偶然气盘中
Sustained Kozai-Lidov oscillations in misaligned circumstellar gas disks
论文作者
论文摘要
围绕具有足够高倾斜度的二进制恒星系统的一个组件的磁盘可以进行Kozai-Lidov（KL）振荡，在此期间，磁盘倾斜度和磁盘偏心率交换。先前的研究表明，由于粘性耗散，KL不稳定的磁盘没有吸收来源，它表现出阻尼的振荡，这使得磁盘稳定在附近或低于KL振荡的关键倾斜度。在三维流体动力学模拟的情况下，我们表明，流向二进制组件的高度未对准的电圆盘形成每个组件周围高度倾斜的偶然性磁盘。我们表明，连续的高度倾斜材料中的插入式中心允许KL振荡继续。 KL磁盘振荡在影响行星形成条件的情况下会产生冲击和偏心率的增长。
A disk around one component of a binary star system with sufficiently high inclination can undergo Kozai-Lidov (KL) oscillations during which the disk inclination and disk eccentricity are exchanged. Previous studies show that without a source of accretion, KL unstable disks exhibit damped oscillations, due to viscous dissipation, that leave the disk stable near or below the critical inclination for KL oscillations. With three-dimensional hydrodynamical simulations we show that a highly misaligned circumbinary disk that flows onto the binary components forms highly inclined circumstellar disks around each component. We show that a continuous infall of highly inclined material allows the KL oscillations to continue. The KL disk oscillations produce shocks and eccentricity growth in the circumstellar disks that affect the conditions for planet formation.
