| 国台学术报告2020年第10次/NAOC Colloquium No.10 2020 | |
| 报告题目/Title： | Measuring distances of quasars through geometric method |
| 报告人/Speaker： | Prof.Jian-Min Wang (Institute of High Energy Physics, CAS) |
| 报告时间/Time： | Wednesday 2:30 PM, Dec.16th, 2020 |
| 报告地点/Location： | A601, NAOC & Live Streaming |
| 主持人/Host： | Dr. Gongbo Zhao |
| 报告视频/Video： | Click to watch the video （未经授权请勿转载） |
| 报告摘要/Abstract： | |
| Quasars are cosmological celetial objects, but their distances have been hardly measured so far. Thanks are given to GRAVITY/VLTI for its powerful capbilities of spatial resolution (10 μas) of 3C 273 broad-line regions. This offers an opportunity of measurimg quasar distances through geometric method. In this talk, I will explain a new geometric scheme of quasar distances through GRAVITY/VLTI and reverberation mapping. It is totally independent of extinction, dereddening, standarization and calibrations of cosmic ladders. Successful application of the scheme was done for 3C 273. | |
| 报告人介绍/Bio: | |
| Prof. Jian-Min Wang joined IHEP under "The Hundred Talents Program" in 1999. He was graduated from National University of Defense Technology in 1987, and got his PhD at University of Science and Techonolgy of China in 1995. He was supported by the National Science Fund for Distinguished Young Scholars in 2003, and awarded the Huang Run-Qian Prize for Astrophysics in 2020. His major interests are qusasrs for supermassive black hole masses, cosmology and nano-Hz gravitational waves. | |
| 报告海报/Poster： | Click to download the poster |
| 演示幻灯片/Slides： | Click to download the slides |
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