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LIGO's detection of gravitational wave events has entered a "new normal", and the era of gravitational wave astronomy has arrived. The construction of a longer-armed gravitational wave detector in space will allow the detection of low-frequency gravitational waves in the milli-Hertz band, targeting supermassive black holes and primordial gravitational waves in the early universe. The presentation will provide an overview of the Space Gravitational Wave Detector, followed by a detailed discussion of the scientific issues of interest to low-frequency gravitational wave observations. The main focus will be on discussing the cosmological standard standard sirens, the physical properties of black holes, and tests of gravitational theory.
Wenbiao Han is the Director of the Science and Technology Development Department and a researcher professor in Shanghai Astronomical Observatory of CAS . He is also the adjunct professor at the University of Chinese Academy of Sciences (UCAS) and Hangzhou Institute for Advanced Study. He graduated from the Shanghai Observatory (SOA) with his Ph.D. degree in 2009, and then did postdoctoral work and visiting scientist at ICRA (Italy), KASI (South Korea), and the University of Missouri (U.S.). He has been engaged in gravitational wave astronomy for a long time, mainly focusing on wave source physics, waveform templates, gravitational theory and cosmological model testing. He has published more than 60 SCI papers and two books, and was selected as a member of the Young Stable Support Team for Basic Research of the Chinese Academy of Sciences (CAS) in 2020. He was the vice-chair of the Committee of Author-list of KAGRA in 2020.