Architecture of selected planetary systems: I. Stars, Planets, Planetesimals and Dust

在其他恒星周围已经发现了数百个行星系统。它们的形状和大小令人眼花缭乱，而且有越来越多的证据表明它们的复杂性。然而，即使在研究最充分的案例中，它们的详细架构在很大程度上仍不为人所知。本项目涉及的是“完整的”行星系统，其中除了中央恒星和一个或几个行星外，还包括一个或多个尘埃盘(表示行星小行星带)。其中有几个是已知的，更多的可以在搜索内行星和外行星的伴生项目的帮助下找到。这个项目的主要目标是对几个选定的“完整”行星系统进行全面、连贯的理论分析。它将包括约束系统年龄、中央恒星的性质、行星的质量和轨道、小行星带的关键参数；找出尘埃的来源和化学成分；研究小行星带行星免受行星扰动的动力学稳定性；以及其他问题。我们还将尝试粗略地重建系统可能的形成场景和进化路径。这将导致对几个复杂的行星系统的综合看法，揭示它们与太阳系的相似和不同之处，最终有助于更好地理解行星系统的形成和演化。

Hundreds of planetary systems have been discovered around other stars. They come in a bewildering variety of shapes and sizes, and there is emerging evidence for their complexity. Yet their detailed architecture remains largely unknown even in the best-studied cases. The present project deals with “full” planetary systems which contain, apart the central star and one or several planets, also one or more dust disks (indicative of planetesimal belts). A handful of them are known, and more can be found with the help of accompanying projects that will search for inner and outer planets. The main goal of this project is to perform a comprehensive, coherent theoretical analysis of several selected “full” planetary systems. It will include constraining the system age, properties of the central star, masses and orbits of the planets, key parameters of the planetesimal belts; finding out the origin and chemical composition of dust; a dynamical stability study of the planets of the belts against perturbations by planets; and other issues. We will also attempt to roughly reconstruct possible formation scenarios and evolutionary paths of the systems. This will result in a synthetic view of several complex planetary systems, uncover their similarities and dissimilarities with the solar system, and finally, contribute to a better understanding of how planetary systems form and evolve.