Chia-Hui Lin (NTU)
The gravitational wave (GW) detected in 2015 is a milestone in science, that proves the most important prediction of Einstein’s general relativity. The ongoing GW detectors such as the advanced LIGO, VIRGO, and KARGRA, is opening a new window of the universe. Therefore, numerical relativistic simulations will provide a powerful tool to study the physics of GW sources. In this poster, we present two GR simulations with Einstein toolkit on a leading supercomputer, Edison (150k+ cores) at NERSC. Our first simulation is to reproduce the observational event, GW150914 which is the first-ever detected GW signal from a binary black hole merger. Our second simulation is to model a binary neutron star merger. For both cases, we can extract the underlying physics and obtain the proper GW signals that match with observation well. Our results demonstrate the power of Einstein toolkit which will be used to study exotic GW events from different types of compact object mergers and predict their observational signatures.