报告摘要：The detection and study of potentially habitable exoplanets is a cutting-edge topic in contemporary astronomy. The National Medium- and Long-Term Development Plan for Space Science (2024–2050) has been officially released, identifying “Nearby Habitable Exoplanets” as one of its key scientific frontiers.The Closeby Habitable Exoplanet Survey (CHES) (http://www.ps.pmo.cas.cn/CHES/)) aims to search for Earth-like planets in the habitable zones around 100 nearby Sun-like stars located within approximately 32 light-years of the Solar System. Utilizing micro-arcsecond-level space-based astrometry, CHES will conduct a comprehensive census of nearby planetary systems, determining the true masses and three-dimensional orbital parameters of detected planets, and establishing a complete database of nearby exoplanets.
The CHES telescope features a 1.2-meter aperture and will operate at the Sun-Earth Lagrangepoint L2 for a planned five-year scientific mission. The mission is expected to achieve significant breakthroughs in detecting terrestrial planets within the habitable zones of nearby solar-type stars. With its innovative technological approach, CHES offers unique advantages in the search for potentially habitable Earth-like planets.This pioneering research will address fundamental questions such as:What is the distribution of nearby habitable exoplanets?Is Earth unique?andHow do planets become cradles of life?
主讲人简介：Dr. Jianghui JI is a Research Professor and Director of the Laboratory at Purple Mountain Observatory, Chinese Academy of Sciences (CAS). He serves as Chair of the Planetary Science Division of the Chinese Astronomical Society and Director of the CAS Key Laboratory of Planetary Sciences. He is also a recipient of the National High-level Talent Program. His research focuses on exoplanets, protoplanetary disks, and small bodies in the Solar System. He has authored over 200 scientific publications. He has led several major research projects, including a Key Program of the National Natural Science Foundation of China and the CAS Strategic Priority Program on Space Science. His work has been recognized as part of China's Top Ten Astronomical Advances of the Year on three occasions and has earned him the Jiangsu Provincial Science and Technology Award. He has also been frequently invited to deliver plenary and keynote talks at international conferences.
