Resolving Super Massive Black Holes with LISA

摘要: We study the angular resolution of gravitational wave detector LISA and show that numerical relativity can drastically improve accuracy position location for coalescing Super Massive Black Hole (SMBH) binaries. For systems with total redshifted mass above $10^7 M_{\odot}$, will mainly see merger ring-down (GW) signal, which now be computed numerically using full Einstein equations. Using waveforms also include about ten GW cycles inspiral, we inspiral-only estimates by an order magnitude. localizes half all such at $z=1$ to better than 3 arcminutes best 20% within one arcminute. This give excellent prospects identifying host galaxy.