ET White Paper: To Find the First Earth 2.0
Abstract
We propose to develop a wide-field and ultra-high-precision photometric survey mission, temporarily named "Earth 2.0 (ET)". 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 30cm telescopes, to be launched to the Earth-Sun's L2 point. Six of these are transit telescopes with a field of view of 500 square degrees. Staring in the direction that encompasses the original Kepler field for four continuous years, this monitoring will return tens of thousands of transiting planets, including the elusive Earth twins orbiting solar-type stars. The seventh telescope is a 30cm microlensing telescope that will monitor an area of 4 square degrees toward the galactic bulge. This, combined with simultaneous ground-based KMTNet observations, will measure masses for hundreds of long-period and free-floating planets. Together, the transit and the microlensing telescopes will revolutionize our understandings 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 archeology, time-domain sciences, and black holes in binaries.
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Cite
@article{arxiv.2206.06693,
title = {ET White Paper: To Find the First Earth 2.0},
author = {Jian Ge and Hui Zhang and Weicheng Zang and Hongping Deng and Shude Mao and Ji-Wei Xie and Hui-Gen Liu and Ji-Lin Zhou and Kevin Willis and Chelsea Huang and Steve B. Howell and Fabo Feng and Jiapeng Zhu and Xinyu Yao and Beibei Liu and Masataka Aizawa and Wei Zhu and Ya-Ping Li and Bo Ma and Quanzhi Ye and Jie Yu and Maosheng Xiang and Cong Yu and Shangfei Liu and Ming Yang and Mu-Tian Wang and Xian Shi and Tong Fang and Weikai Zong and Jinzhong Liu and Yu Zhang and Liyun Zhang and Kareem El-Badry and Rongfeng Shen and Pak-Hin Thomas Tam and Zhecheng Hu and Yanlv Yang and Yuan-Chuan Zou and Jia-Li Wu and Wei-Hua Lei and Jun-Jie Wei and Xue-Feng Wu and Tian-Rui Sun and Fa-Yin Wang and Bin-Bin Zhang and Dong Xu and Yuan-Pei Yang and Wen-Xiong Li and Dan-Feng Xiang and Xiaofeng Wang and Tinggui Wang and Bing Zhang and Peng Jia and Haibo Yuan and Jinghua Zhang and Sharon Xuesong Wang and Tianjun Gan and Wei Wang and Yinan Zhao and Yujuan Liu and Chuanxin Wei and Yanwu Kang and Baoyu Yang and Chao Qi and Xiaohua Liu and Quan Zhang and Yuji Zhu and Dan Zhou and Congcong Zhang and Yong Yu and Yongshuai Zhang and Yan Li and Zhenghong Tang and Chaoyan Wang and Fengtao Wang and Wei Li and Pengfei Cheng and Chao Shen and Baopeng Li and Yue Pan and Sen Yang and Wei Gao and Zongxi Song and Jian Wang and Hongfei Zhang and Cheng Chen and Hui Wang and Jun Zhang and Zhiyue Wang and Feng Zeng and Zhenhao Zheng and Jie Zhu and Yingfan Guo and Yihao Zhang and Yudong Li and Lin Wen and Jie Feng and Wen Chen and Kun Chen and Xingbo Han and Yingquan Yang and Haoyu Wang and Xuliang Duan and Jiangjiang Huang and Hong Liang and Shaolan Bi and Ning Gai and Zhishuai Ge and Zhao Guo and Yang Huang and Gang Li and Haining Li and Tanda Li and Yuxi and Lu and Hans-Walter Rix and Jianrong Shi and Fen Song and Yanke Tang and Yuan-Sen Ting and Tao Wu and Yaqian Wu and Taozhi Yang and Qing-Zhu Yin and Andrew Gould and Chung-Uk Lee and Subo Dong and Jennifer C. Yee and Yossi Shvartzvald and Hongjing Yang and Renkun Kuang and Jiyuan Zhang and Shilong Liao and Zhaoxiang Qi and Jun Yang and Ruisheng Zhang and Chen Jiang and Jian-Wen Ou and Yaguang Li and Paul Beck and Timothy R. Bedding and Tiago L. Campante and William J. Chaplin and Jørgen Christensen-Dalsgaard and Rafael A. García and Patrick Gaulme and Laurent Gizon and Saskia Hekker and Daniel Huber and Shourya Khanna and Yan Li and Savita Mathur and Andrea Miglio and Benoît Mosser and J. M. Joel Ong and Ângela R. G. Santos and Dennis Stello and Dominic M. Bowman and Mariel Lares-Martiz and Simon Murphy and Jia-Shu Niu and Xiao-Yu Ma and László Molnár and Jian-Ning Fu and Peter De Cat and Jie Su and the ET consortium},
journal= {arXiv preprint arXiv:2206.06693},
year = {2022}
}
Comments
116 pages,79 figures