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谢基伟 | 教授
个人介绍

谢基伟,现任南京大学天文与空间科学学院教授、博士生导师、天文学系系主任,中国天文学会行星专业委员会副主任,中国郭守敬望远镜(LAMOST)科学委员会和用户委员会委员,《天文学报》副主编,被聘为江苏省天文学会“科技传播专家”、“科普校园行专家”,“苏州科普大使”。

1984年生于江西省赣州市,1999-2002 毕业于赣州市第三中学,2002-2006年南京大学天文系本科,2006-2011南京大学研究生,2008-2010佛罗里达大学联合培养博士,2011-2013多伦多大学博士后。2014-2020为南京大学天文与空间科学学院副教授。

主要研究领域为太阳系外行星的普查、形成和演化。2010年获首届教育部博士研究生学术新人奖,2012获年江苏省优秀博士论文,2013年获全国百篇优秀博士论文奖,2019年得到江苏省杰出青年基金支持,并获得中国天文学会第七届“黄授书奖”,亚太地球科学学会(AOGS)“卡米德讲座奖”以及江苏省天文学会科学技术一等奖(第二完成人)2022年在中国天文学会成立百年纪念大会上被授予中国天文学会2012-2022年度突出贡献奖研究成果曾分别被评为2016年度和2018年度中国十大天文科技进展。




承担课程

《理论力学》,《行星科学导论》,《天文与天体物理热点研究》,《千亿星辰》,《科学之光:认识宇宙》,《天文探秘》

研究领域

Research Group


Current members:

    Research Assistants: 

        YANG,Jia-Yi (杨佳祎);JIANG, Chao-Feng (姜朝峰)

    Post-Doc: 

        CHEN, Di-Chang  (陈迪昌)

    Ph.D students

        SHIN, Ke-Ting (辛科霆); ZHANG, Rui-Sheng (张睿晟); SUN, Meng-Fei(孙梦菲);AN, Dong-Sheng (安东升)

    Master students

        TU, Pei-Wei (涂培玮);WU, Di (武迪);ZHANG Xin-Yue (张欣悦)

    Undergraduates:

      A, Si-Ru (阿斯如)

        

Previous members:

        JIANG, Chao-Feng (姜朝峰) Ph.D in 2022, now research assitant in our group

        TANG, Wei (唐玮)research assistant in 2022, now graduate student at Imperial College London

        SU, Xiang-Ning (苏湘宁) Ph.D in 2021, now faculty in Shaoyang University, Hunan, China

        CHEN, Di-Chang  (陈迪昌)  Ph.D in 2021, now Post-Doc (LAMOST Fellow) in our group

        LI, Zi-Fan(李子凡)B.S. in 2022, now PhD student in PMO, China

        MO, Fan (莫凡) B.S. in 2022, now PhD student in PMO, China

        LIU, Shuai (刘帅)  B.S. in 2021, now PhD student in NAOC, China

        YANG, Jia-Yi (杨佳祎)  Ph.D in 2020, now research assitant in our group

        WANG, Zi-Xian (王梓先)  B.S. in 2019, now PhD student in University of Sydney, Austrilia 

        SHEN, Yu-Fu (申育夫)  B.S. in 2019, now PhD student in NAOC, China

        LIU, Zi-Bo (刘子博)  B.S. in 2018, now PhD student in Macau University of Science and Technology, China

        ZHANG, Ya-Peng  (张雅鹏)  B.S. in 2017, now PhD student in Leiden Observatory, Holland  

        ZHONG, Ze-Hao (钟泽昊)  B.S. in 2016, now PhD student in NAOC, China

        WANG, Xiao-YU (王啸宇)  B.S. in 2016, now PhD student in USTC, China




 Research Highlights


"Evolution of Hot Jupiters", In This Issue PNAS, Full paper published in PNAS 2023


"Overview of the LAMOST Survey in the First Decade", The Innovation,  2022


"LAMOST Helps in Planetary Census Across Time and Space" , Chinese Academy of Sciences press release, 2021


"Orbital Spacing Pattern of Planetary Systems with Super-Earths/sub-Neptunes", The Astronomical Journal, 2020


"Occurrence and Architecture of Planetary Systems with Super-Earths/sub-Neptunes" , The Astronomical Journal, 2020


"A power-law decay evolution scenario for polluted single white dwarfs", Nature Astronomy, 2019


"Introducing "Hoptunes", a New Class of Exoplanets", Kavlifoundation News, Full paper published in PNAS, 2018


"The Impact of Stars on Moons", Highlight in AAS NOVA, Full paper published in AJ, 2017


"Orbital Shape Distributions of Exoplanets" , BCAS,  Full paper published in PNAS, see also a story at IFL Science News "Lonely Planets Have Crazier Orbits Than Worlds With Companions", 2016


"NASA's Kepler Provides Insights on Enigmatic Planets", JPL news, Full paper published in ApJS, 2014


"41 New Transiting Planets in Kepler Field of View", NASA Kepler news, Full paper published in ApJS, 2012


"Astronomy Without A Telescope – A Snowball’s Chance"UNIVERSE TODAY news, Full paper published in ApJ, 2010


"Nearby Star System Could Support Earth-Like Planet" Space.com  news, Full paper published in ApJ, 2010

 





 Recent  Projects 


PAST: Planets Across Space and Time (“穿越”系列)

Over 5000 exoplanets have been discovered and thousands of candidates are yet to be confirmed. The discovered exoplanet population has expanded significantly from the solar neighborhood to a much larger area (orders of 1000 pc) in the Galaxy thanks to the improvement of observational technology. We are therefore entering a new era to study exoplanets in the Milky Way Galaxy. In the Galactic context, one of fundamental questions in studying exoplanets is: what are the differences in the properties of planetary systems at different positions (or compitions) of the Galaxy with different ages?  To address the question, in a series of papers from here on, we conduct statistical studies of planets at different positions in the Galaxy with different ages, a project that we dub Planets Across Space and Time (PAST). The answer to this question will provide insights on the formation and evolution of the ubiquitous and diverse exoplanets in different Galactic environments.


Publications:

Chen, D.-C., Xie, J.-W., Zhou, J.-L., et al. 2021. Planets Across Space and Time (PAST). I. Characterizing the Memberships of Galactic Components and Stellar Ages: Revisiting the Kinematic Methods and Applying to Planet Host Stars. The Astrophysical Journal 909. doi:10.3847/1538-4357/abd5be


Chen, D.-C., Yang, J.-Y., Xie, J.-W., et al. 2021. Planets Across Space and Time (PAST). II. Catalog and Analyses of the LAMOST-Gaia-Kepler Stellar Kinematic Properties. The Astronomical Journal 162. doi:10.3847/1538-3881/ac0f08


Chen, D.-C., Xie, J.~W., Zhou, J.-L., et al. 2022. Planets Across Space and Time (PAST). III. Morphology of the Planetary Radius Valley as a Function of Stellar Age and Metallicity in the Galactic Context Revealed by the LAMOST-Gaia-Kepler Sample. The Astronomical Journal 163. doi:10.3847/1538-3881/ac641f


Yang, J.-Y., Chen, D.-C., Xie, J.-W., et al. 2023. Planets Across Space and Time (PAST). IV. The Occurrence and Architecture of Kepler Planetary Systems as a Function of Kinematic Age Revealed by the LAMOST-Gaia-Kepler Sample. The Astronomical Journal 166. doi:10.3847/1538-3881/ad0368


Chen, D.-C., Xie, J.-W., Zhou, J.-L., et al. 2023. The evolution of hot Jupiters revealed by the age distribution of their host stars. Proceedings of the National Academy of Science 120. doi:10.1073/pnas.2304179120


POET: Planetary Orbit Eccentricity Trends (“诗人”系列)

Orbital eccentricity is one of the fundamental parameters in planetary dynamics, which provides crucial constraints on planet formation and evolution. Based on the fact that the solar system's planets have small orbital inclinations and eccentricities, Kant and Laplace in the 18th century put forward that the solar system formed from a nebula disk, laying the foundation for the modern theory of planet formation. Since the discovery of 51 Pegasi b in 1995, the number of exoplanets has increased dramatically. Furthermore, various surveys of spectroscopy and astrometry provide comprehensive characterizations for the host stars of exoplanets, allowing one to statistically study the relationship between stars and planets. Here we start a project, Planetary Orbit Eccentricity Trends (POET), to investigate how orbital eccentricities of planets depend on various stellar/planetary properties. 


Publications:

Xie, J.-W., Dong, S., Zhu, Z., et al. 2016, Exoplanet orbital eccentricities derived from LAMOST-Kepler analysis. Proceedings of the National Academy of Science, 113, 11431. doi:10.1073/pnas.1604692113


An, D.-S., Xie, J.-W., Dai, Y.-Z., Zhou, J.-L. 2023. Planetary Orbit Eccentricity Trends (POET). I. The Eccentricity-Metallicity Trend for Small Planets Revealed by the LAMOST-Gaia-Kepler Sample. The Astronomical Journal 165. doi:10.3847/1538-3881/acb533



DEB: Demographics of Exoplanets in Binaries (“新秀”系列)

Stars are thought to be commonly born and found in binary/multiple systems. Therefore, the demographics of exoplanets in binaries play a crucial role in statistically studying the whole exoplanet population in our Galaxy. Furthermore, the diverse orbital configurations and rich dynamics in planet-bearing binary systems provide valuable conditions to test various theories and models of planet formation and evolution. Here, we conduct a series of studies on the Demographics of Exoplanets in Binaries (DEB), aiming to find patterns from observations to deepen our understanding of planet formation and evolution.


Publications:

Su, X.-N., Xie, J.-W., Zhou, J.-L., et al. 2021. Demographics of Exoplanets in Binaries. I. Architecture of S-type Planetary Systems Revealed by the Radial-velocity Sample. The Astronomical Journal 162. doi:10.3847/1538-3881/ac2ba3



学术发表文章

发表文章清单(来自ADS统计)


主要代表性成果有:

(1)  用我国LAMOST望远镜揭示系外行星轨道规律和发现新的行星族群。巧妙的结合我国LAMOST数据和Kepler数据,对系外行星进行统计分析,并因此揭示行星圆轨道的普遍性以及偏心率和轨道倾角的线性规律,为理解系外行星的形成机制提供重要观测参考依据。新的热海王星行星族的发现不仅为检验各种具体的行星形成模型提供了观测依据,还为揭开热木星的起源提供了新的线索。(Xie et al. 2016, Dong et al. 2018)

(2)  通过统计分析斯皮策太空望远镜(Spitzer)和斯隆数字化巡天望远镜(SDSS)的观测数据,结合数值模拟和理论推导,提出了环白矮星尘埃盘和白矮星大气金属污染的演化模型,揭示了白矮星吞噬其周围残留行星物质的演化规律。(Chen et al. 2019)

(3)  从Kepler卫星观测数据中发现和证认了54颗系外行星,占当时Kepler发现行星总数的1/4左右。这些发现得到了官方的认可和报道,被美NASA的系外行星档案中收录并将其论文标注为发现文献 (Xie 2013, 2014)

(4)  对双星系统中行星的形成做了系统研究,并提出双星系统中星子生长的新机制。Xie & Zhou (2008, 2009), Xie et al. (2010a,b, 2011)。