Detection of gravitational waves with pulsar timing array----天文地球动力学研究中心(中文版)

Detection of gravitational waves with pulsar timing array

发布时间：2017-04-18 来源：

Title: Detection of gravitational waves with pulsar timing array

Speaker:Dr. ZHU Xingjiang

Time:15:00, April 17

Location:Medium Conference Room of Tianwen Tower

Abstract: Gravitational wave astronomy is an emerging branch of observational astronomy. In this talk I will first give an overview of gravitational waves and a brief history of detection efforts across the gravitational wave spectrum. I will review the recent LIGO detections of signals from coalescing stellar-mass binary black holes. Then I will move on to discuss gravitational wave detection in the nanohertz frequency band through pulsar timing arrays. While no detection has been made so far, it is believed to be likely that the gravitational wave window can be extended to lower frequencies within 5-10 years. After giving some status updates on various timing array programs, I will describe searches for gravitational waves from individual supermassive black hole binaries with Parkes Pulsar Timing Array and the data analysis methods being used for such searches. I will conclude with some remarks regarding the future of gravitational wave astronomy.