论文标题
限制KH 15D系统中的电路磁盘倾斜
Constraining the Circumbinary Disk Tilt in the KH 15D system
论文作者
论文摘要
KH 15D是一个由年轻的，古怪的二元组成的系统，是一个圆盘，它遮盖了二进制磁盘预动力。我们开发了一个自洽模型，该模型可与过去60年中KH 15D系统中观察到的光度变异性合理拟合。 Our model suggests that the circumbinary disk has an inner edge $r_{\rm in}\lesssim 1 \ {\rm au}$, an outer edge $r_{\rm out} \sim {\rm a \ few \ au}$, and that the disk is misaligned relative to the stellar binary by $\sim$5-16 degrees, with the内边缘比外边缘更倾斜。磁盘内部和外边缘的上升节点（扭曲）的倾斜度（扭曲）和经度之间的差异分别为$ \ sim $ 10度和$ \ sim $ 15度。我们还对磁盘的其他特性（例如进动期和表面密度曲线）提供了约束。我们的工作证明了光度数据在约束形成行星环形磁盘的物理特性方面的力量。
KH 15D is a system which consists of a young, eccentric binary, and a circumbinary disk which obscures the binary as the disk precesses. We develop a self-consistent model that provides a reasonable fit to the photometric variability that was observed in the KH 15D system over the past 60 years. Our model suggests that the circumbinary disk has an inner edge $r_{\rm in}\lesssim 1 \ {\rm au}$, an outer edge $r_{\rm out} \sim {\rm a \ few \ au}$, and that the disk is misaligned relative to the stellar binary by $\sim$5-16 degrees, with the inner edge more inclined than the outer edge. The difference between the inclinations (warp) and longitude of ascending nodes (twist) at the inner and outer edges of the disk are of order $\sim$10 degrees and $\sim$15 degrees, respectively. We also provide constraints on other properties of the disk, such as the precession period and surface density profile. Our work demonstrates the power of photometric data in constraining the physical properties of planet-forming circumbinary disks.
