国际天文年邀请审查系外行星
International Year of Astronomy Invited Review on Exoplanets
摘要：
就在14年前，太阳系还是银河系中唯一已知的行星系，关于行星形成的概念就是由这个样本形成的。从那时起，已经发现了320颗行星围绕276颗恒星运行。这个庞大且不断增长的系外行星群为行星形成理论提供了信息，将太阳系置于更广阔的背景下，并揭示了许多惊喜。在这篇评论中，我提供了一个概述，已经从行星的发生，轨道和物理结构的研究中学到了什么。在回顾了该领域的进展之后，我将讨论系外行星科学的一些未来方向，着眼于其他恒星周围类地行星的探测和表征。
英文摘要：
Just fourteen years ago the Solar System represented the only known planetary system in the Galaxy, and conceptions of planet formation were shaped by this sample of one. Since then, 320 planets have been discovered orbiting 276 individual stars. This large and growing ensemble of exoplanets has informed theories of planet formation, placed the Solar System in a broader context, and revealed many surprises along the way. In this review I provide an overview of what has been learned from studies of the occurrence, orbits and physical structures of planets. After taking a look back at how far the field has advanced, I will discuss some of the future directions of exoplanetary science, with an eye toward the detection and characterization of Earth-like planets around other stars.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
