论文标题
循环行星的低自旋轴变化
Low Spin-Axis Variations of Circumbinary Planets
论文作者
论文摘要
拥有巨大的月亮已被视为稳定行星倾斜的主要机制，这是我们地球的一个例子。但是，这并不总是与系外行业案例一致。本文详细介绍了一种替代机制的发现，即绕二进制恒星绕的行星往往具有较低的自旋轴变化。这是因为恒星二元的巨大四极电位可能会加快行星轨道进动的速度，并将系统从世俗的旋转轨道共振中驱除。因此，与单星类似物相比，低倾斜轨道中恒星二进制的宜人区行星具有更高的常规季节变化潜力。
Having a massive moon has been considered as a primary mechanism for stabilized planetary obliquity, an example of which being our Earth. This is, however, not always consistent with the exoplanetary cases. This article details the discovery of an alternative mechanism, namely that planets orbiting around binary stars tend to have low spin-axis variations. This is because the large quadrupole potential of the stellar binary could speed up the planetary orbital precession, and detune the system out of secular spin-orbit resonances. Consequently, habitable zone planets around the stellar binaries in low inclination orbits hold higher potential for regular seasonal changes comparing to their single star analogues.
