Gravitational Waves from Charged-Black Hole Binaries

We model the dynamics of a binary black hole system with electrically charged components and the gravitational waves emitted. Systems with extreme and intermediate mass-ratios are investigated using black hole perturbation theory. Through this procedure we solve the linearized Einstein-Maxwell equations numerically. The rate of radiative energy dissipation from gravitational and electromagnetic waves is used to incorporate radiation reaction into the equations of motion through adiabatic and quasi-circular approximations. We observe that the gravitational waveforms are most strongly affected by electric charge when the two binary components have opposite charge-to-mass ratios, and we quantify the effect of electric charge in various scenarios.