GWDAW-8 Abstract: Template-less Multi-detector Searches for Binary Black Hole Coalescences

Shawn Seader · Washington State University


The energy output during the merger phase of a high mass binary black hole coalescence can be substantially higher than that yielded by its inspiral phase. Such events are also visible to much larger distances than binary neutron star coalescences, and offer better chances of detection with the first generation of Earth-based interferometers. However, we do not yet have reliable enough waveforms for the merger phase. Here we extend the work of Flanagan and Hughes in modeling this phase as a burst and coherently analyzing the data from multiple detectors for detecting such a signal. Although this strategy is not as efficient as matched-filtering (i.e., if reliable templates were present), nevertheless it is powerful enough in discerning for consistency in polarization and sky-position information available in the signals at the different detectors.