Tianyu: search for the second solar system and explore the dynamic universe
Fabo Feng, Yicheng Rui, Zhimao Du, Qing Lin, Congcong Zhang, Dan Zhou,, Kaiming Cui, Masahiro Ogihara, Ming Yang, Jie Lin, Yongzhi Cai, Taozhi Yang,, Xiaoying Pang, Mingjie Jian, Wenxiong Li, Hengxiao Guo, Xian Shi, Jianchun, Shi, Jianyang Li, Kangrou Guo, Song Yao, Aming Chen

TL;DR
The Tianyu project aims to discover solar system analogs and explore dynamic celestial events using a dedicated high-precision, wide-field photometric survey with two telescopes in China, covering a broad range of astronomical phenomena.
Contribution
This work introduces a novel two-telescope system designed specifically to detect long-period, cold giant exoplanets and various transient astronomical events, expanding the scope of current observational capabilities.
Findings
Expected to find over 300 exoplanets, including 12 cold giants
Projected discovery of 1-2 solar system analogs in five years
Enhanced observation of transient events across multiple timescales
Abstract
Giant planets like Jupiter and Saturn, play important roles in the formation and habitability of Earth-like planets. The detection of solar system analogs that have multiple cold giant planets is essential for our understanding of planet habitability and planet formation. Although transit surveys such as Kepler and TESS have discovered thousands of exoplanets, these missions are not sensitive to long period planets due to their limited observation baseline. The Tianyu project, comprising two 1-meter telescopes (Tianyu-I and II), is designed to detect transiting cold giant planets in order to find solar system analogs. Featuring a large field of view and equipped with a high-speed CMOS camera, Tianyu-I will perform a high-precision photometric survey of about 100 million stars, measuring light curves at hour-long cadence. The candidates found by Tianyu-I will be confirmed by Tianyu-II…
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Taxonomy
TopicsStellar, planetary, and galactic studies · Astronomy and Astrophysical Research · Adaptive optics and wavefront sensing
