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	ET White Paper: To Find the First Earth 2.0
	Ge, Jian79; Zhang, Hui79; Zang, Weicheng78; Deng, Hongping79; Mao, Shude63,78; Xie, Ji-Wei77; Liu, Hui-Gen77; Zhou, Ji-Lin77; Willis, Kevin60; Huang, Chelsea54
英文摘要	The ET mission is a wide-field and ultra-high-precision photometric survey mission being developed in China. This mission is designed to measure, for the first time, the occurrence rate and the orbital distributions of Earth-sized planets. ET consists of seven 30 cm telescopes to be launched to the Earth-Sun's L2 point. Six of these are transit telescopes with a FOV of 500 square degrees. Staring in the direction that encompasses the original Kepler field for four continuous years, this monitoring will yield tens of thousands of transiting planets, including the elusive Earth twins orbiting solar-type stars. The seventh is a 30 cm microlensing telescope that will monitor an area of 4 square degrees toward the galactic bulge. Combined with simultaneous ground-based KMTNet observations, it will measure masses of hundreds of long-period and free-floating planets. Together, the transit and the microlensing telescopes will revolutionize our understanding of terrestrial planets across a large swath of orbital distances and free space. In addition, the survey data will also facilitate studies in the fields of asteroseismology, Galactic archaeology, time-domain sciences, and black holes in binaries. © 2022, CC BY-NC-ND.
	2022-06-14
语种	英语
内容类型	预印本
源URL	[http://ir.opt.ac.cn/handle/181661/96044]
专题	西安光学精密机械研究所_空间光学应用研究室
作者单位	1.Jimei University, Xiamen, China; 2.Elte Eötvös Loránd University, Institute of Physics, Pázmány Péter sétány 1/A, Budapest; 1117, Hungary 3.Konkoly Observatory, Research Centre for Astronomy and Earth Sciences, Eötvös Loránd Research Network (ELKH), Konkoly Thege Miklós út 15-17, Budapest; H-1121, Hungary; 4.Royal Observatory of Belgium, Ringlaan 3, Brussel; B-1180, Belgium; 5.Centre for Astrophysics, University of Southern Queensland, Toowoomba; QLD; 4350, Australia; 6.Institute of Astronomy, Ku Leuven, Celestijnenlaan 200D, Leuven; B-3001, Belgium; 7.School of Physics, University of New South Wales, NSW; 2052, Australia; 8.Department of Astronomy, Yale University, 52 Hillhouse Ave., New Haven; CT; 06511, United States; 9.Lesia, Observatoire de Paris, Psl Research University, Cnrs, Sorbonne Université, Université Paris Diderot, Meudon; 92195, France; 10.INAF-Osservatorio di Astrofisica e Scienza Dello Spazio di Bologna, Bologna, Italy;
推荐引用方式 GB/T 7714	Ge, Jian,Zhang, Hui,Zang, Weicheng,et al. ET White Paper: To Find the First Earth 2.0. 2022.

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