标题： 站在巨人的肩膀上：凌星与高对比度巨行星的综合光谱调查 显示英文标题

标题： Standing on the Shoulders of Giants: A Comprehensive Spectroscopic Survey of Transiting & High-Contrast Giant Planets

摘要： 我们提出了一项关于巨型行星的全面调查，这些行星从靠近恒星且强烈受辐射的热木星到年轻的、轨道较宽的直接成像行星都有涵盖。 两种已确立的技术（时间序列凌日观测和高对比度光谱学）的结合，将为我们提供一个前所未有的窗口，以了解一系列平衡温度（100-2000 K）、轨道分离（0.1-100天文单位）和系统年龄（10百万年到10亿年）下的气态行星组成。 迄今为止，通过凌日和直接成像测量的行星成分表明了两种不同的形成路径：直接成像行星的恒星式形成和凌日行星的行星式形成。 通过利用凌日和直接成像领域的技术和理论专长，我们可以获得关于巨型行星形成、迁移、吸积和演化的整体视图。 从这项综合计划的结果中，我们将开始回答我们对巨型行星理解中的一个基本未解问题：巨型行星在原行星盘中的何处以及如何形成？ 显示英文摘要

摘要： We propose a comprehensive survey of giant planets ranging from close-in highly irradiated hot Jupiters to young, wide-orbit directly imaged planets. The combination of two established techniques for probing planetary atmospheric compositions (time-series transit observations and high-contrast spectroscopy) will provide an unprecedented window into gaseous planet compositions across a range of equilibrium temperatures (100-2000 K), orbital separations (0.1-100 au), and system ages (10 Myr-1 Gyr). To-date, compositional measurements of both transiting and directly imaged planets suggest two distinct formation pathways: star-like formation for directly imaged planets and planet-like formation for transiting planets. By leveraging the combined technical and theoretical expertise of the transiting and direct imaging communities, we can obtain a holistic view of giant planet formation, migration, accretion, and evolution. From the results of this comprehensive program, we will begin to answer one of the fundamental outstanding questions in our understanding of giant planets: where and how in the protoplanetary disk do giant planets form?