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2018.08.23學術報告:南极星空里的太阳系外行星

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時間:2018-08-21  來源:文本大小:【 |  | 】  【打印

  報告人:張輝   南京大學天文與空間科學學院副教授 

  報告時間:201882310:30 

  地點:2號樓二樓大會議室  

  報告題目:南極星空裏的太陽系外行星(Exoplanets in the Antarctic Sky---Searching for exoplanets within the TESS’s Southern CVZ. 

  報告人簡介: 

  張輝,2008年獲南京大學天文系博士學位,2014年澳大利亚新南威尔士大学高级访问学者,目前为南京大學天文與空間科學學院副教授。主要从事太阳系外行星的形成与演化相关的研究,内容包括行星與氣體盤相互作用的流體數值模擬大視場高精度測光巡天方法系外行星候選體的高精度視向速度證認以及行星大樣本統計等。2011年開始參與中國南極天文973項目,負責其中太陽系外行星的觀測策略和數據處理工作。目前發現太陽系外行星候選體100余顆,發表相關SCI論文20余篇。 

  報告摘要: 

  While the space based exoplanet survey projects (e.g. Kepler) have achieved great success, there is still valuable exoplanetary science that can be done from the ground. This is especially important at some unique sites. Dome A, the highest point of the Antarctic plateau, is one of these sites. In 2008, China established a scientific site at Dome A. Now, in a significant collaboration with Australian astronomers, a large survey project has been ongoing there for several years. This is the Antarctic Survey Telescope (AST3) project, consisting of three 0.5m telescopes located at Dome A. The exoplanet searching program is one of the two major scientific aims of AST3. I will briefly outline this project and introduce the progress of the exoplanet survey in details. It will cover the exoplanet scientific goals, instruments, designs of survey strategy, data reduction pipeline and exoplanet candidates we found within TESS’s Southern Continuous Viewing Zone.