Institutional Repository of Optical Astronomy Research Laboratory
| Science Goals of the Earth 2.0 Space Mission | |
Zhang, Hui1; Ge, Jian1; Deng, Hongping1; Yao, Xinyu1; Zhu, Jiapeng1; Zang, Weicheng2; Mao, Shude2; Zhu, Wei2; Wang, Sharon Xuesong2; Xie, Jiwei3; Yang, Ming3; Jiang, Chaofeng3; Chen, Dichang3; Wang, Mutian3; Tang, Wei3; Sun, Mengfei3; Willis, Kevin4; Huang, Chelsea5; Ma, Bo6; Wang, Yonghao6; Shen, Rongfeng6; Tam, Pak-Hin Thomas6; Hu, Zhecheng6; Yang, Yanlv6; Feng, Fabo7; Liu, Beibei8; Ye, Quanzhi9; Xiang, Maosheng10; Yu, Jie11; Zhang, Jinghua12; Wu, Yaqian12; Zong, Weikai13; Yuan, Haibo13; Li, Tanda14; Zhao, Yinan15; Zou, Yuanchuan16; Liu, Jinzhong17
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| 2022-07-01 | |
| Conference Name | Conference on Space Telescopes and Instrumentation - Optical, Infrared, and Millimeter Wave |
| Source Publication | SPACE TELESCOPES AND INSTRUMENTATION 2022: OPTICAL, INFRARED, AND MILLIMETER WAVE |
| Volume | 12180 |
| Pages | 1218016 |
| Conference Date | JUL 17-22, 2022 |
| Conference Place | Montreal, CANADA |
| Country | CANADA |
| Publication Place | BELLINGHAM |
| Publisher | Spie-Int Soc Optical Engineering |
| Contribution Rank | 17 |
| Abstract | An innovative Chinese space mission, the Earth 2.0 (ET) mission, is being developed to combine the transit and microlensing method together to search for Earth-sized exoplanets in the Galaxy, including the most precious ones-Earth 2.0s, i.e., habitable Earth-sized (0.8-1.25 Earth radii) planets orbiting solar type stars, cold and free-floating low-mass planets. ET's 6 transit telescopes will monitor a FoV of 500 square degrees (covering the Kepler field) continuously for at least four years and generate a huge database containing high-cadence and ultra-high photometry precision light curves of 1.2 million FGKM dwarfs. With such a high value database in hand, many unsolved issues in the exoplanet field and even stellar sciences will be well addressed. Besides looking for Earth 2.0s and constraining its occurrence rate, ET will be dedicated to map a much wider radius-period diagram of terrestrial-like exoplanets than ever and reveal how it depends on the stellar properties and environments. With the 4-yr legacy data of Kepler, ET will observe some planet systems for up to 8 years and catch additional components in a multi-planet system, e.g. cold Giant, cold sub-Earths, exomoons, exorings and even exocomets. Are exomoons and exocomets common in a planet system? What's the favorite number of planets in a multi-planet system? What's the most common orbital configuration of planet systems? With these new data, ET will deepen our understandings on how unique our Solar system is and how do multi-planet systems evolve. In addition to exoplanet sciences, ET's time series data will also benefit the studies in asteroseismology, archeology in the Galaxy, time-domain astrophysics and black hole science. |
| Keyword | ET Earth 2.0 terrestrial planet habitable planet free-floating planet time-domain black-hole binary stars |
| DOI | 10.1117/12.2630151 |
| Indexed By | CPCI |
| Language | 英语 |
| ISBN | 978-1-5106-5342-9 |
| ISSN | 0277-786X;1996-756X |
| WOS ID | WOS:000865466600035 |
| Citation statistics | |
| Document Type | 会议论文 |
| Identifier | http://ir.xao.ac.cn/handle/45760611-7/5178 |
| Collection | 光学天文与技术应用研究室 |
| Corresponding Author | Zhang, Hui |
| Affiliation | 1.Shanghai Astronomical Observatory, Chinese Academy of Sciences, Shanghai, China; 2.Department of Astronomy, Tsinghua University, Beijing, China; 3.Department of Astronomy, Nanjing University, Nanjing, China; 4.Science Talent Training Center, Gainesville, Florida, U.S.A; 5.Centre for Astrophysics, University of Southern Queensland, QSL, Australia; 6.School of Physics and Astronomy, Sun-Yat-Sen University, Zhuhai, China; 7.T.D. Lee Institute, Shanghai Jiaotong University, Shanghai, China; 8.Department of Physics, Zhejiang University, Hangzhou, China; 9.Department of Astronomy, University of Maryland, College Park, MD 20742, USA; 10.Max Planck Institute for Astronomy, Heidelberg, Germany; 11.Max Planck Institute for Solar System Research, G¨ottingen, Germany; 12.National Astronomical Observatory, Chinese Academy of Sciences, Beijing, China; 13.Department of Astronomy, Beijing Normal University, Beijing, China; 14.School of Physics and Astronomy, University of Birmingham, Birmingham B15 2TT, UK; 15.Department of Astronomy, Geneva University, Geneva, Switzerland; 16.Department of Astronomy, Huazhong University of Science and Technology, Wuhan, China; 17.Xinjiang Astronomical Observatory, Chinese Academy of Sciences, Xinjiang, China |
| Recommended Citation GB/T 7714 | Zhang, Hui,Ge, Jian,Deng, Hongping,et al. Science Goals of the Earth 2.0 Space Mission[C]. BELLINGHAM:Spie-Int Soc Optical Engineering,2022:1218016. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| Zhang-2022-Science G（816KB） | 会议论文 | 开放获取 | CC BY-NC-SA | View Application Full Text | ||
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