题 目:Analyzing Gravitational Wave Data for Charge Constraints

报告人:王海天

时 间:2024年4月1号(星期一)上午10:00

地 点:LE201

邀请人:李瑾

报告摘要:The detection of gravitational wave signals provides us with a rare opportunity to test general relativity in strong-field regimes. In traditional astrophysics, black holes are generally assumed to be Kerr black holes. Therefore, by analyzing gravitational wave data, we can constrain various modifications to gravitational theories or introduce non-Kerr parameters for non-Kerr black holes. My focus is primarily on Kerr-Newman black holes and non-Kerr parameters introduced by the Einstein-dilaton-Gauss-Bonnet (EdGB) theory. Due to the contributions from higher-order modes and orbital precession in new gravitational wave data, we have improved the constraints on EdGB theory by an order of magnitude. Additionally, we analytically studied the impact of electric charge on gravitational waveforms for Kerr-Newman black holes, considering modifications due to the charge during inspiral and ringdown phases.

报告人介绍:

2016年本科毕业于华南理工大学,2019年硕士毕业于中山大学天琴中心,2022年博士毕业于中国科学技术大学&紫金山天文台。2022年至今是北京大学科维理天文与天体物理研究所博后。研究方向主要是结合双黑洞并合产生的引力波信号进行数据分析以及检验广义相对论。截至目前,已发表于国际主流期刊的文章共16篇,其中一作和共同通讯九篇,其它合作文章七篇。当前Inspire上的h-index为11,总引用量642次。博后期间主持博士后科学基金会特别资助(站前)项目“时域分析引力波数据的研究”,以及国自然理论物理专项项目“用引力波数据限制修改引力”。