| 国台学术报告2021年第15次/NAOC Colloquium No.15 2021 | |
| 暨国家天文台组建20周年学术报告Colloquium for the 20th anniversary of NAOC | |
| 报告题目/Title： | Mapping Nearby Galaxies with Integral Field Spectroscopy |
| 报告人/Speaker： | Dr. Cheng Li (Tsinghua University) |
| 报告时间/Time： | Wednesday 2:30 PM, Dec. 22, 2021 |
| 报告地点/Location： | A601, NAOC & Live Streaming |
| 主持人/Host： | Prof. Yu Dai |
| 报告语言/Language： | English |
| 报告海报/Poster： | Click to download the poster |
| 报告视频/Video： | (未经授权请勿转载） |
| 直播链接/Live Webcast： | [光明网直播地址] https://topics.gmw.cn/2021-12/20/content_35393404.htm |
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| 报告摘要/Abstract： | |
| Galaxies are ecosystems consisting of multiple components which interplay with each other and are distributed over a wide range of spatial scale, from sub-galactic scales up to scales of dark matter halos. Therefore, in order to have a complete picture of galaxy evolution, one has to obtain observational data with multiple wavebands and different spatial resolutions to probe physical processes both internal and external to galaxies. Current integral field unit (IFU) surveys such as CALIFA and MaNGA are providing resolved spectroscopy for large samples of galaxies in the local Universe, allowing the stellar populations and star formation histories across the whole galaxy area to be studied with high accuracy. In addition, maps of molecular gas are also being obtained by arrays of radio antenna, thus providing additional data for linking the star formation and gas accretion processes in the IFU era. I'll present our recent studies based on the CALIFA, MaNGA and CARMA-EDGE surveys, particularly focusing on the resolved maps of star formation history and molecular gas, as well as roles of internal structure and environment in driving galaxy evolution. | |
| 报告人介绍/Bio: | |
| Cheng Li is a Professor at Department of Astronomy of Tsinghua University in Beijing. Before he joined Tsinghua in September 2015, he worked at Shanghai Astronomical Observatory as a group leader (2010-2015) and Max-Planck Institute for Astrophysics as a postdoc (2007-2010). He obtained his PhD from USTC in 2006. His research has been focused on the structure, formation and evolution of galaxies, as well as the large-scale structure of the Universe. He is a member of the SDSS-IV and Subaru/PFS projects. More details can be found on the web for both Cheng (http://astro.tsinghua.edu.cn/~cli/) and his group (https://lig.astro.tsinghua.edu.cn/). | |
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