https://i.astro.tsinghua.edu.cn/~cli/ 2026-04-25T01:13:18+00:00 https://i.astro.tsinghua.edu.cn/~cli/ https://i.astro.tsinghua.edu.cn/~cli/lib/tpl/20cones/images/favicon.ico text/html 2024-11-06T06:16:41+00:00 https://i.astro.tsinghua.edu.cn/~cli/doku.php?id=wiki:about&rev=1730873801&do=diff I'm a Professor at Department of Astronomy of Tsinghua University. My research has been focused on the structure, formation and evolution of galaxies, and the large-scale structure of the Universe. I use data from both observational experiments (particularly SDSS-IV and Subaru/PFS) and numerical simulations to understand the physical link of different classes of galaxies with the hosting dark matter halos. I've been teaching text/html 2023-12-04T22:19:50+00:00 https://i.astro.tsinghua.edu.cn/~cli/doku.php?id=wiki:arxiv&rev=1701728390&do=diff My arXiv notes (since 2020) Userful tools * RealSim-IFS: Realistic synthetic integral field spectroscopy with RealSim-IFS * The RealSim-IFS Python code is publicly available here: <https://github.com/cbottrell/realsim_ifs>. * how to referee papers? A Referee Primer for Early Career Astronomers * Review articles * Dust Formation in Astrophysical Environments: The Importance of Kinetics * ALPINE: A Large Survey to Understand Teenage Galaxies 2023 2022 July * Turbulent Co… text/html 2024-11-27T07:57:41+00:00 https://i.astro.tsinghua.edu.cn/~cli/doku.php?id=wiki:contact&rev=1732694261&do=diff Contact Prof. Cheng Li (李成) Department of Astronomy Tsinghua University, 100084 Beijing, P. R. China Tel: +86 (0)10-627-94129 Email: cli2015 at tsinghua edu cn Office: E322, Eastern Wing, Physics Building text/html 2023-12-04T22:21:34+00:00 https://i.astro.tsinghua.edu.cn/~cli/doku.php?id=wiki:diary&rev=1701728494&do=diff Diary since October 2020 12/2023 Tuesday 5 December 2023 * missing AGN-starburst connection? 10/2020 Thursday 15 October 2020 ArXiv of the day * arXiv:2010.06725: Clustering of red and blue galaxies around high-redshift 3C radio sources as seen by the Hubble Space Telescope, Zohreh Ghaffari, Martin Haas, Marco Chiaberge, S. P. Willner, Rolf Chini, Hendrik Hildebrandt, Michael West, Roberto de Propris text/html 2017-11-14T01:56:04+00:00 https://i.astro.tsinghua.edu.cn/~cli/doku.php?id=wiki:dokuwiki&rev=1510624564&do=diff DokuWiki wiki:dokuwiki DokuWiki is a simple to use and highly versatile Open Source wiki software that doesn't require a database. It is loved by users for its clean and readable syntax. The ease of maintenance, backup and integration makes it an administrator's favorite. Built in text/html 2018-04-28T23:48:22+00:00 https://i.astro.tsinghua.edu.cn/~cli/doku.php?id=wiki:download&rev=1524959302&do=diff [Download the slides] text/html 2022-02-18T07:04:16+00:00 https://i.astro.tsinghua.edu.cn/~cli/doku.php?id=wiki:galphys&rev=1645167856&do=diff Galactic Physics * Chapter 1: Introduction to the course * Chapter 2: Cosmological background ([PPT]) text/html 2018-09-16T03:53:45+00:00 https://i.astro.tsinghua.edu.cn/~cli/doku.php?id=wiki:internal&rev=1537070025&do=diff 2018.9.16: 最近关闭了微信朋友圈的功能，清理了微信群和通信录，还附庸风雅买了一套竖版繁体《资治通鉴》，每天晚上睡前不看微信改读历史。从三家分晋开始，昨晚读到秦始皇驾崩，不到200年的历史可谓精彩纷呈，各种历史事件大小人物粉墨登场，国家发展和合纵连横、人才竞争和内斗内耗、战争兵法和斗争技巧、仁义道德与为人处事，感触很多，忍不住写点读后感与大家分享。最大的感触是，以前道听途说的许多说法其实都有问题，真的是尽信书不如无书。都说战国时代不讲仁义只顾攻伐，其实恰恰相反，上到国君下到臣民，人人顾惜信誉和死后名声，凡事必要师出有名，为国家朋友道义奋不顾身者比比皆是，道德诚信体系远非当今社会可比。而被后人称道的的苏秦之流，恰恰是十足的小人，苏秦凭口才说服六国合纵，身佩六国相印，秦国稍一反击马上逃得远远的，合纵局面不到两年就土崩瓦解（维基百科上说合纵维持了15年，其实是讹传），之后这家伙竟然与最初提拔赏识自己的燕文公的夫人私通，事发后逃到齐国，怂恿齐湣王攻灭宋国，直接导致齐国被诸侯围攻，要不是联军总指挥乐毅遭到燕惠王猜忌，齐国当时就亡国了。苏秦在齐国恐怕是太得意太嚣张了，被政敌买凶刺死，也是… text/html 2024-12-11T02:12:08+00:00 https://i.astro.tsinghua.edu.cn/~cli/doku.php?id=wiki:meetings&rev=1733883128&do=diff The ecosystem of gas and dust in galaxies near and far, Chiang Mai, Dec 10-15, 2024 text/html 2017-11-14T01:56:04+00:00 https://i.astro.tsinghua.edu.cn/~cli/doku.php?id=wiki:navigation_header&rev=1510624564&do=diff About|Research|Teaching|Contact text/html 2024-09-18T07:27:34+00:00 https://i.astro.tsinghua.edu.cn/~cli/doku.php?id=wiki:notes&rev=1726644454&do=diff Surface brightness and color profiles of early-type galaxies * La Barbera et al. (2012): <https://academic.oup.com/mnras/article/426/3/2300/988992?login=false> * This paper studied the optical-optical and optical-NIR color out to 8R_e for a sample of 673 massive early-type galaxies (ETGs) with M*>3×10^10 soloar mass, selected from SDSS-based SPIDER survey. Radial profiles of colors, as well as stellar age and metallicity derived from stellar population synthesis modelling are obtained. Ge… text/html 2026-04-07T04:50:49+00:00 https://i.astro.tsinghua.edu.cn/~cli/doku.php?id=wiki:publications&rev=1775537449&do=diff Publications Full Publication List * My full publication list on the NASA/ADS Recent papers * Gao, Ce, Li, Cheng, Mo, Houjun, et al. Galaxy Populations in Groups and Clusters: II. Conditional Luminosity Functions at Redshifts from z ~ 1 to z ~ 0, submitted to MNRAS, arXiv eprints (2026) * Guo, Yanhan and Li, Cheng, Interaction-induced HI gas concentration with centrally-enhanced star formation in ALFALFA-SDSS galaxies, submitted to MNRAS, arXiv e-prints (2026) * Ma, Qinglin, Li, Chen… text/html 2026-03-21T22:13:10+00:00 https://i.astro.tsinghua.edu.cn/~cli/doku.php?id=wiki:research&rev=1774131190&do=diff Research Interests * Structure, formation and evolution of galaxies * Circum-galactic medium and inter-galactic medium * Star formation, feedback, and interstellar medium * Physical link of galaxies with dark matter halos * Large-scale structure of the Universe text/html 2026-03-21T22:17:04+00:00 https://i.astro.tsinghua.edu.cn/~cli/doku.php?id=wiki:schedule&rev=1774131424&do=diff Weekly Schedule, Spring 2026 Monday Tuesday Wednesday Thursday Friday 09:00-10:00 10:00-11:00 Teaching text/html 2026-03-21T22:14:12+00:00 https://i.astro.tsinghua.edu.cn/~cli/doku.php?id=wiki:schedules&rev=1774131252&do=diff Weekly Schedule, Fall 2024 Monday Tuesday Wednesday Thursday Friday 09:00-10:00 Group Meeting Group Meeting 10:00-11:00 Group Meeting text/html 2021-01-08T01:57:02+00:00 https://i.astro.tsinghua.edu.cn/~cli/doku.php?id=wiki:scratch&rev=1610071022&do=diff Headline Li Hui * Does the IMF differ between the two modes of star formation? * steeper mass function of star clusters by major mergers; is this consistent with the linear relation of halo mass and GC total mass? * triple distribution in the Age-Metallicity diagram? due to major mergers? text/html 2020-02-26T06:55:50+00:00 https://i.astro.tsinghua.edu.cn/~cli/doku.php?id=wiki:ssst&rev=1582700150&do=diff SSST 02/26/2020 * 09:00-10:00am SSST telecon * 10:00-11:00am telecon with Sharon X. Wang on exoplanet * 3:00-4:00pm telecon with Chao Liu * text/html 2018-05-30T06:06:27+00:00 https://i.astro.tsinghua.edu.cn/~cli/doku.php?id=wiki:students&rev=1527660387&do=diff * Naijun Jin * Ryan Chown text/html 2017-11-14T01:56:04+00:00 https://i.astro.tsinghua.edu.cn/~cli/doku.php?id=wiki:syntax&rev=1510624564&do=diff Formatting Syntax DokuWiki supports some simple markup language, which tries to make the datafiles to be as readable as possible. This page contains all possible syntax you may use when editing the pages. Simply have a look at the source of this page by pressing text/html 2021-11-08T13:33:17+00:00 https://i.astro.tsinghua.edu.cn/~cli/doku.php?id=wiki:teaching&rev=1636378397&do=diff Teaching Galactic Physics, for graduate students (Spring semester, since 2021) * Introduction * Cosmological background * Linear perturbation theory * Non-linear collapse and virialization * Formation and structure of dark matter halos * text/html 2024-04-17T22:50:56+00:00 https://i.astro.tsinghua.edu.cn/~cli/doku.php?id=wiki:travels&rev=1713394256&do=diff Past travels * March, 3, 2022, Colloquium at SJTU, Shanghai * June 10-13, the 11th C-MaNGA workshop, Zhuhai * May 14-17, 2021, the 23th Guoshuojing Symposium on Galaxies and Cosmology, Hangzhou * March 25, 2021, Colloquium at NJU, Nanjing text/html 2017-11-14T01:56:04+00:00 https://i.astro.tsinghua.edu.cn/~cli/doku.php?id=wiki:welcome&rev=1510624564&do=diff Welcome to your new DokuWiki Congratulations, your wiki is now up and running. Here are a few more tips to get you started. Enjoy your work with DokuWiki, -- the developers Create your first pages Your wiki needs to have a start page. As long as it doesn't exist, this link will be red: text/html 2021-07-23T10:47:18+00:00 https://i.astro.tsinghua.edu.cn/~cli/doku.php?id=wiki:working&rev=1627037238&do=diff Comments to Xihan: * In the introduction, need to highlight/emphasize the differences in sample selection criteria between Bait et al and our work. * the values of stellar mass in Fig.1 are inconsistent with those in Table 1, which I think is a factor of log(h*h)=0.3 dex. Let's orrect the figure (and other figures with the same problem) using h=0.7, as claimed at the end of the introduction.