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Roughly 30 years ago, high-resolution stellar spectroscopy provided the first set of discoveries in the field of exoplanets through precise radial velocity (PRV) measurements. Up to the present day, radial velocity has revealed over a thousand exoplanets and tracked down hundreds of transiting exoplanets. The combination of high-precision radial velocity data and high-quality host star spectra has opened doors to various directions of exoplanet detection and research. This presentation will showcase some recent work done at Tsinghua ExoLab focusing on bridging stars and planets using high-resolution spectroscopy. Here "bridging" carries two meanings: exploring the links between stellar properties and the architecture or composition of exoplanets, or transitional objects between stars and planets. This talk is pitched at the level appropriate to senior undergrads and junior grad students that major in astronomy or physics.
Xuesong (Sharon) Wang is an Associate Professor in the Department of Astronomy at Tsinghua University. She joined the department in 2020 and was previously a Carnegie Fellow at Carnegie DTM (now EPL) and the Observatories. She received her Ph.D. from the Pennsylvania State University and a B.S. in Physics from Tsinghua. Her group at Tsinghua, the ExoLab, focuses on observational studies of exoplanets, primarily using the transit and radial velocity (RV) methods. She is the Project Scientist for the next-generation precise RV spectrograph, CHORUS, that China is currently building for the 10.4-meter GTC, as well as a science team member for multiple RV programs such as Magellan/PFS, Keck/KPF and WIYN/NEID.
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