中国科学院机构知识库网格系统: Tianyu—Search for the Second Solar System and Explore the Dynamic Universe

Tianyu—Search for the Second Solar System and Explore the Dynamic Universe

文献类型：期刊论文


Author	Feng FB(冯发波)21,22; Rui YC(芮易成)22; Du ZM(杜芝茂)20; Lin Q(林清)20; Zhang CC(张聪聪)19; Zhou D(周丹)19; Cui KM(崔开明)22; OGIHARA Masahiro 21,22; Yang M(杨明)18; Lin J(林杰)16,17
Source	天文学报/Acta Astronomica Sinica
Issued Date	2024-07
Volume	65 Issue:04 Pages:3-45
Keyword	techniques: photometric planets and satellites: detection planets and satellites: formation stars: supernovae: general stars: variables: general minor planets asteroids: general stars: gamma-ray burst: general
ISSN	0001-5245
DOI	10.15940/j.cnki.0001-5245.2024.04.001
Alternative Title	天语计划——寻找第二个太阳系及探索动态宇宙
Rank	第8完成单位
English Abstract	Giant planets like Jupiter and Saturn, play important roles in the formation andhabitability of Earth-like planets. The detection of solar system analogs that have multiple coldgiant planets is essential for our understanding of planet habitability and planet formation. Al though transit surveys such as Kepler and Transiting Exoplanet Survey Satellite (TESS) havediscovered thousands of exoplanets, these missions are not sensitive to long period planetsdue to their limited observation baseline. The Tianyu project, comprising two 1-meter tele scopes (Tianyu-I and II), is designed to detect transiting cold giant planets in order to findsolar system analogs. Featuring a large field of view and equipped with a high-speed comple mentary metal-oxide-semiconductor (COMS) camera, Tianyu-I will perform a high-precisionphotometric survey of about 100 million stars, measuring light curves at hour-long cadence. Thecandidates found by Tianyu-I will be confirmed by Tianyu-II and other surveys and follow-upfacilities through multi-band photometry, spectroscopy, and high resolution imaging. Tianyutelescopes will be situated at an elevation about 4000 meters in Lenghu, chosen as the premierobservation site in China. With a photometric precision of 0. 1% for stars with V < 14 mag, and1% for stars with V < 18 mag, Tianyu is expected to find more than 300 transiting exoplanets, including about 12 cold giant planets, over five years. Assuming coplanarity for solar systemanalogs and an occurrence rate of 10% for Earth twins, a five-year survey of Tianyu woulddiscover 1–2 solar system analogs, which could be confirmed by Earth-hunting missions suchas Earth 2. 0. Moreover, Tianyu is also designed for non-exoplanetary exploration, incorporat ing multiple survey modes covering timescales from sub-seconds to months, with a particularemphasis on events occurring within the sub-second to hour range. It excels in observing areassuch as infant supernovae, rare variable stars and binaries, tidal disruption events, Be stars, cometary activities, and interstellar objects. These discoveries not only enhance our comprehen sion of the universe but also offer compelling opportunities for public engagement in scientific exploration.
Subject	天文学 ; 恒星与银河系
Classification	P144
URL	查看原文
Funding Project	Shanghai Jiao Tong University 2030 Initiative, Science and Technology Commission of Shanghai Municipality project [23JC1410200]; Zhangjiang National Innovation Demonstration Zone project [ZJ2023-ZD-003]; China-Chile Joint Research Fund under project CCJRF 2205, by FONDECYT grant 1201371; the ANID BASAL project FB210003; YZC is National Natural Science Foundation of China [NSFC]; YZC is National Natural Science Foundation of China [12303054]; the Yunnan Fundamental Research Projects [202401AU070063]; the International Centre of Supernovae, Yunnan Key Laboratory [202302AN360001]; NSFC [12150009]; NSFC through grants 12173029 and 12233013; NSFC [12120101003 and 12233008]; NSFC [12233003]
Language	英语
Funding Organization	Shanghai Jiao Tong University 2030 Initiative, Science and Technology Commission of Shanghai Municipality project [23JC1410200] ; Zhangjiang National Innovation Demonstration Zone project [ZJ2023-ZD-003] ; China-Chile Joint Research Fund under project CCJRF 2205, by FONDECYT grant 1201371 ; the ANID BASAL project FB210003 ; YZC is National Natural Science Foundation of China [NSFC, 12303054] ; the Yunnan Fundamental Research Projects [202401AU070063] ; the International Centre of Supernovae, Yunnan Key Laboratory [202302AN360001] ; NSFC [12150009] ; NSFC through grants 12173029 and 12233013 ; NSFC [12120101003 and 12233008] ; NSFC [12233003]
Version	出版稿
源URL	[http://ir.ynao.ac.cn/handle/114a53/27515]
Collection	云南天文台_丽江天文观测站（南方基地）云南天文台_中国科学院天体结构与演化重点实验室
Affiliation	1.Department of Astronomy,Stockholm University; 2.清华大学天体物理研究中心 3.Centre for Astrophysics Research,University of Hertfordshire; 4.中国科学院国家天文台中国科学院天文光学技术重点实验室; 5.山东大学空间与物理学院山东省光学天文与日地空间环境重点实验室; 6.Instituto de Estudios Astrofísicos,Facultad de Ingeniería y Ciencias,Universidad Diego Portales; 7.太原理工大学电子信息与光学工程学院; 8.中山大学大气科学学院; 9.中国科学院国家天文台; 10.上海师范大学上海市星系与宇宙学半解析研究重点实验室;
Recommended Citation GB/T 7714	Feng FB,Rui YC,Du ZM,et al. Tianyu—Search for the Second Solar System and Explore the Dynamic Universe[J]. 天文学报/Acta Astronomica Sinica,2024,65(04):3-45.
APA	冯发波.,芮易成.,杜芝茂.,林清.,张聪聪.,...&宋翠英.(2024).Tianyu—Search for the Second Solar System and Explore the Dynamic Universe.天文学报/Acta Astronomica Sinica,65(04),3-45.
MLA	冯发波,et al."Tianyu—Search for the Second Solar System and Explore the Dynamic Universe".天文学报/Acta Astronomica Sinica 65.04(2024):3-45.

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来源：云南天文台

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