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arXiv 1604.06458astro-ph.IMastro-ph.EP
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系外行星大气和巨型地基望远镜

Exoplanet Atmospheres and Giant Ground-Based Telescopes

I. J. M. Crossfield

摘要:

对太阳系外行星的研究已经迅速扩展到包括寻找新行星、测量大小和质量、行星内部模型、行星人口统计和出现频率、行星轨道和动力学特征以及研究这些世界的复杂大气层。只要有改进的工具和技术,我们对系外行星的了解就会大大提高,现在计划中的最大工具肯定是光学/红外极大望远镜(ELT)。两个主题总结了ELT的大气研究的优势:高角分辨率时,在衍射极限和高光谱分辨率,这些大型望远镜前所未有的收集面积。这篇简短的评论描述了ELT提供的新机会,以研究这些行星大气的组成,结构,动力学和演化,同时特别关注四个性质不同的行星种群的一些最引人注目的大气科学案例:高度辐射的气体巨星,年轻,热的巨行星,老,冷的气体巨星,小行星和地球类似物。

英文摘要:

The study of extrasolar planets has rapidly expanded to encompass the search for new planets, measurements of sizes and masses, models of planetary interiors, planetary demographics and occurrence frequencies, the characterization of planetary orbits and dynamics, and studies of these worlds' complex atmospheres. Our insights into exoplanets dramatically advance whenever improved tools and techniques become available, and surely the largest tools now being planned are the optical/infrared Extremely Large Telescopes (ELTs). Two themes summarize the advantages of atmospheric studies with the ELTs: high angular resolution when operating at the diffraction limit and high spectral resolution enabled by the unprecedented collecting area of these large telescopes. This brief review describes new opportunities afforded by the ELTs to study the composition, structure, dynamics, and evolution of these planets' atmospheres, while specifically focusing on some of the most compelling atmospheric science cases for four qualitatively different planet populations: highly irradiated gas giants, young, hot giant planets, old, cold gas giants, and small planets and Earth analogs.

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。

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