Speaker: Jian-dong Zhang 张建东 (Sun Yat-Sen University)

腾讯会议：814-2523-8667 https://meeting.tencent.com/dm/enw38q7VWH8a

Abstract: Nearly one hundred events of gravitational wave signals have been detected with ground-based gravitational wave detectors targeting the band around ten Hz, and thus open a new window for gravitational wave astronomy and gravitational wave physics. It also yields a large number of important results in astronomy and gravitational theory. The millihertz band targeted by space-borne gravitational wave detectors has more and stronger sources, including compact galactic binaries, massive binary black holes, stellar-mass binary black holes, extreme mass ratio inspirals, and stochastic gravitational wave backgrounds from various sources. However, there are still a large number of theoretical problems to be solved in the analysis of related scientific problems, waveform template generation and data processing methods. This presentation will briefly introduce these problems and discuss the role that the study of gravitational theory can play in the study of related problems, taking the TianQin project as an example.

摘要：人们目前已经利用针对几十赫兹频段的地面引力波探测器探测到了近百例引力波信号，打开了引力波天文学和引力波物理研究的新窗口，并在天文学和引力理论等方面得到了大量重要的研究结果。而空间引力波探测器所针对的毫赫兹频段，存在着更多更强的不同种类的引力波源：包括银河系内致密双星、大质量双黑洞、恒星质量双黑洞、极端质量比旋近、和各种来源的随机引力波背景等。然而在相关的科学问题分析、波形模板产生和数据处理方法中都还存在着大量有待解决的理论问题。本报告将以天琴计划为例，针对这些问题进行简要的介绍，并讨论引力理论的研究在相关问题的研究中能够发挥的作用。

个人简介：张建东，现任中山大学物理与天文学院、天琴中心副教授。2011年本科毕业于北京大学天文系，2016年博士毕业于北京大学理论物理所。2016年加入中山大学物理与天文学院天琴中心，从事空间引力波探测相关的理论研究。主要的研究兴趣为引力理论和引力波物理学，当前主要研究方向为面向空间引力波探测的波形建模、引力理论检验和数据处理的相关问题。

Short bio: Jian-dong Zhang is an Associate Professor at the School of Physics and Astronomy, TianQin Center of Sun Yat-sen University. In 2011, he graduated from the Department of Astronomy of Peking University with a bachelor's degree. In 2016, he graduated from the Institute of Theoretical Physics of Peking University with a PhD degree. He joined the TianQin Center and the School of Physics and Astronomy of Sun Yat-sen University since 2016, and is engaged in the theoretical research related to space-borne gravitational wave detection. His main research interests are gravitational theory and gravitational wave physics, and his current research focus on the waveform modeling, testing the theory of gravity and data analysis for space-borne gravitational wave detection.