论文标题
豆豆里的豌豆？开普勒多行星系统中的半径相关性
Peas in a Pod? Radius correlations in Kepler multi-planet systems
论文作者
论文摘要
我们解决了Weiss等人的主张。 （2018年），开普勒多星际系统中相邻行星的半径是相关的。我们探索了两个简单的玩具模型---在第一个中，行星的半径是从单个通用分布中随机选择的，第二个我们假设几种类型的系统具有不同的半径分布。我们表明，与Weiss等人报道的相似行星的半径之间的明显相关性。 （2018）在这两种模型中都可以出现。另外，第二个模型符合观察到的行星的半径和信噪比分布。我们还评论了一种常用校正的有效性，该校正用于估计固有行星的发生率，该校正率是基于加权行星的可检测性的。
We address the claim of Weiss et al. (2018) that the radii of adjacent planets in Kepler multi-planet systems are correlated. We explore two simple toy models---in the first the radii of the planets are chosen at random from a single universal distribution, and in the second we postulate several types of system with distinct radius distributions. We show that an apparent correlation between the radii of adjacent planets similar to the one reported by Weiss et al. (2018) can arise in both models. In addition the second model fits the radius and signal-to-noise distribution of the observed planets. We also comment on the validity of a commonly used correction that is used to estimate intrinsic planet occurrence rates, based on weighting planets by the inverse of their detectability.
