Speaker Hirotada Okawa (Waseda Institute for Advanced Study)
Title: Post-Newtonian Kozai-Lidov mechanism and gravitational waves from hierarchical triple systems
We have recently studied gravitational waves from a hierarchical three-body system up to first-order post-Newtonian approximation. One of the key players is the so-called Kozai-Lidov oscillation, which causes periodic exchange between eccentricity of inner bindary and relative inclination. In our recent papers, we analyzed dynamics of three-body systems which consists of pulsars or black holes, and gravitational waves from such systems. In my talk, I will first explain the results obtained so far by perturbation and double-averaging method in the literature and will next discuss our direct simulation for three-body problems and those results.
Room: ZOOM videoconference (contact firstname.lastname@example.org for URL)