Abstract We revisit the discovery and implications of the first candidate systems to contain multiple transiting exoplanets. These systems were discovered using data from the Kepler space telescope. The initial paper, presenting five systems (Steffen et al., 2010a), was posted online at the time the project released the first catalog of Kepler planet candidates. The first extensive analysis of the observed population of multis was presented in a follow-up paper published the following year (Lissauer et al., 2011b). Multiply-transiting systems allow us to answer a variety of important questions related to the formation and dynamical evolution of planetary systems. These two papers addressed a wide array of topics including: the distribution of orbital period ratios, planet size ratios, system architectures, mean-motion resonance, orbital eccentricities, planet validation and confirmation, and the identification of different planet populations. They set the stage for many subsequent, detailed studies by other groups. Intensive studies of individual multiplanet systems provided some of Kepler’s most important exoplanet discoveries. As we examine the scientific impact of the first of these systems, we also present some history of the people and circumstances surrounding their discoveries.

中文翻译：

---

开普勒多凌日行星系统的发现和遗产

摘要 我们重新审视了第一个包含多个凌日系外行星的候选系统的发现和影响。这些系统是使用开普勒太空望远镜的数据发现的。最初的论文展示了五个系统（Steffen 等，2010a），在该项目发布第一个开普勒行星候选者目录时在线发布。第二年发表的一篇后续论文中介绍了对观察到的多重群体的第一次广泛分析（Lissauer 等人，2011b）。多重凌日系统使我们能够回答与行星系统的形成和动力学演化相关的各种重要问题。这两篇论文涉及广泛的主题，包括：轨道周期比的分布、行星尺寸比、系统架构、平均运动共振、轨道离心率、行星验证和确认，以及不同行星种群的识别。他们为其他小组的许多后续详细研究奠定了基础。对单个多行星系统的深入研究提供了开普勒一些最重要的系外行星发现。当我们检查这些系统中的第一个系统的科学影响时，我们还介绍了围绕他们的发现的人和环境的一些历史。