Merging and Ringing Down Binary Black Holes with Unequal Masses in SpECTRE

Over the next decade, new gravitational wave observatories will require highly accurate models of the binary black holes they expect to observe, including binaries with black-hole masses far from equal. Near the time of merger, these models necessarily rely on numerical relativity simulations, because analytic approximations break down. SpECTRE is a next-generation numerical-relativity code that uses a discontinuous-Galerkin method combined with task-based parallelism. One primary goal for SpECTRE is modeling merging black holes with the accuracy future observatories will require. In this talk, I will discuss the progress toward using SpECTRE to evolve binary black holes with unequal masses through merger and ringdown.