时间：12月27日（周五）上午10：00 

地点：多学科416
报告人：易疏序 (Radboud University)
主持人：廖进元 副研究员
     
题目：恒星级双黑洞并合引力波的电磁对应体

摘要：Multimessenger astronomy, combining gravitational-wave (GW) and electromagnetic-wave (EM) observations, has a huge impact on physics, astrophysics, and cosmology. However, the majority of sources detected with currently running ground-based GW observatories are binary black hole (BBH) mergers, which disappointingly were expected to have no EM counterparts. In this Letter, we propose that if a BBH merger happens in a gaseous disk around a supermassive black hole, the merger can be accompanied by a transient radio flare like a fast radio burst (FRB). We argue that the total mass and the effective spin derived from GW detection can be used to distinguish such a source from other channels of BBH mergers. If this prediction is confirmed with future observations, multimessenger astronomy can be greatly improved. The mystery of the origin of FRBs could also be revealed partially.

个人简历：2016年于中国科学院大学获得博士学位，博士论文题目《脉冲星计时应用研究》；2016-2018年于香港大学从事博士后研究，研究方向致密双星辐射机制；2018-今于荷兰Radboud大学从事博士后研究，研究方向引力波天文学。