CRA Seminar: Prof. Huan Yang (Perimeter Institute)

Probing neutron star physics with gravitational wave detections

The recent detection of the binary neutron star merger event (GW170817) has marked the beginning of multi-messenger astronomy with gravitational waves. In this talk I will briefly review current findings associated with GW170817 and introduce new opportunities from future detections. In the first part, I will explain interesting features of gravitational waveform coming from eccentric binary neutron star systems, emphasizing a new type of tidal resonance effect that may show up in the late inspiral stage. I will also show how to use tidal effects to distinguish neutron star/low-mass black hole binaries from neutron star binaries. In the second half of the talk, I will discuss current efforts in detecting post-merger gravitational wave signals. This includes developing a machine learning based post-merger template to perform Matched-Filter search, and a new concept of high-frequency gravitational wave detectors targeting post-merger neutron star physics.

http://www.perimeterinstitute.ca/people/huan-yang