报告题目:Merits of the LISA-TAIJI networks

报告人：王刚 副研究员（上海天文台）

报告时间：2023年5月26日（周五）上午 10:00-12:00

报告地点：理学楼A 二楼师生活动中心

摘 要 (Abstract): The space-borne gravitational wave (GW) detectors, LISA and TAIJI, are planned to be launched in the 2030s. The dual detectors with comparable sensitivities will form a network observing GW with significant advantages. In this talk, I will report our investigations on the three potential LISA-TAIJI networks for the different location and orientation compositions of LISA orbit (+60◦ inclination and tailing the Earth by 20◦) and alternative TAIJI orbit configurations including TAIJIp (+60◦ inclination and leading the Earth by 20◦), TAIJIc (+60◦ inclination and co-located with LISA), TAIJIm (−60◦ inclination and leading the Earth by 20◦). In the three LISA-TAIJI configurations, the LISA-TAIJIm network shows the best performance on the sky localization and polarization determination for the massive binary system due to their better complementary antenna pattern, and LISA-TAIJIc could achieve the best cross-correlation and observe the stochastic GW background with an optimal sensitivity. The future deployment should trade off the detectability for massive black hole binaries and stochastic GW background.

报告人简介(Bio): 王刚，Dr. Gang Wang received Ph.D as Marie Skłodowska-Curie fellow from Gran Sasso Science Institute (GSSI) and International School for Advanced Studies (SISSA) in 2017. During 2015-2017, he worked on data analysis pipeline for searching gravitational wave signals from compact binary coalescence in the LIGO-Virgo collaboration. After one-year visiting at Wuhan Institute of Physics and Mathematics, CAS, he joined Shanghai Astronomical Observatory, CAS in 2019. His current research interests include space mission orbit designs, simulation of time-delay interferometry, and gravitational wave data processing.

邀请人：朱涛 教授