报告题目：MINERVA-Australis and SONG: Australia's new dedicated observatories 

　　报告人：Professor Rob Wittenmyer, University of Southern Queensland 

　　报告摘要：MINERVA-Australis at the University of Southern Queensland's Mount Kent. Observatory is the only southern hemisphere precise radial velocity facility wholly dedicated to follow-up of TESS planets. Mass measurements of these planets are critically necessary to maximise the scientific impact of the TESS mission, to understand the composition of exoplanets and the transition between rocky and gaseous worlds. MINERVA-Australis is a partnership between MIT, UNSW Australia, George Mason University, University of Louisville, Nanjing University, UC-Riverside, University of Texas, and the University of Florida. The array is now fully operational, with five 0.7m telescopes in place. I give an overview and update of operations, and I present our precise radial velocity results and orbital solutions for several TESS planets. 

　　The Stellar Observations Network Group (SONG) is establishing a node at Mount Kent. SONG-Australia will complete the global longitude coverage, delivering breakthroughs in fundamental understanding of the interiors of stars for decades to come. SONG-Australia is designed on a "MINERVA" model, whereby fibers from multiple small telescopes feed a single high-resolution spectrograph. This approach provides expandability and reduces cost by using factory-built components that have been well-tested by the MINERVA teams. As a result of these innovations, SONG-Australia is expected to be fully operational by mid-2020. 

　　报告时间：2019年12月17日下午2:00 

　　报告地点：紫台2-208会议室