Science Goals of the Earth 2.0 Space Mission
文献类型：会议论文
| 作者 | Zhang, Hui14; Ge, Jian14; Deng, Hongping14; Yao, Xinyu14; Zhu, Jiapeng14; Zang, Weicheng13; Mao, Shude13; Zhu, Wei13; Wang, Sharon Xuesong13; Xie, Jiwei12 |
| 出版日期 | 2022-07-01 |
| 会议日期 | JUL 17-22, 2022 |
| 会议地点 | Montreal, CANADA |
| 关键词 | ET Earth 2.0 terrestrial planet habitable planet free-floating planet time-domain black-hole binary stars |
| 卷号 | 12180 |
| DOI | 10.1117/12.2630151 |
| 页码 | 1218016 |
| 国家 | CANADA |
| 英文摘要 | 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. |
| 产权排序 | 17 |
| 会议录 | SPACE TELESCOPES AND INSTRUMENTATION 2022: OPTICAL, INFRARED, AND MILLIMETER WAVE
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| 会议录出版者 | Spie-Int Soc Optical Engineering |
| 会议录出版地 | BELLINGHAM |
| 语种 | 英语 |
| ISSN号 | 0277-786X;1996-756X |
| ISBN号 | 978-1-5106-5342-9 |
| WOS记录号 | WOS:000865466600035 |
| 源URL | [http://ir.xao.ac.cn/handle/45760611-7/5178]  |
| 专题 | 新疆天文台_光学天文与技术应用研究室 |
| 通讯作者 | Zhang, Hui |
| 作者单位 | 1.Department of Astronomy, University of Maryland, College Park, MD 20742, USA; 2.Department of Astronomy, Beijing Normal University, Beijing, China; 3.National Astronomical Observatory, Chinese Academy of Sciences, Beijing, China; 4.Max Planck Institute for Solar System Research, G¨ottingen, Germany; 5.Max Planck Institute for Astronomy, Heidelberg, Germany; 6.School of Physics and Astronomy, University of Birmingham, Birmingham B15 2TT, UK; 7.Department of Physics, Zhejiang University, Hangzhou, China; 8.T.D. Lee Institute, Shanghai Jiaotong University, Shanghai, China; 9.School of Physics and Astronomy, Sun-Yat-Sen University, Zhuhai, China; 10.Centre for Astrophysics, University of Southern Queensland, QSL, Australia; |
| 推荐引用方式 GB/T 7714 | Zhang, Hui,Ge, Jian,Deng, Hongping,et al. Science Goals of the Earth 2.0 Space Mission[C]. 见:. Montreal, CANADA. JUL 17-22, 2022. |
入库方式： OAI收割
来源：新疆天文台
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