Speaker
Description
XOB provides an eXact One-Body approach to the conservative part of binary dynamics in General Relativity. We will report that dynamics of this approach under the weak-field-low-speed expansion is equivalent to the post-newtonian approximation at all orders, thus making it a truly GR-version one-body formulation of two-body problems. Using this approach and a banana-shape-deformation modulated quadrupole formula, we calculate the gravitational waveform of black hole binary merger process and get results matching numeric relativity better than 99\%. As a fully analytical and whole-process applicable one-body approach, XOB not only produces the gravitational waveform of binary merger process rapidly, but also links its feature to the inner structure of merger bodies transparently.