Modeling multipolar gravitational-wave emission from small mass-ratio
  mergers
  Using the effective-one-body (EOB) formalism and a time-domain Teukolsky
code, we generate inspiral, merger, and ringdown waveforms in the small
mass-ratio limit. We use EOB inspiral and plunge trajectories to build the
Teukolsky equation source term, and compute full coalescence waveforms for a
range of black hole spins. By comparing EOB waveforms that were recently
developed for comparable mass binary black holes to these Teukolsky waveforms,
we improve the EOB model for the (2,2), (2,1), (3,3), and (4,4) modes. Our
results can be used to quickly and accurately extract useful information about
merger waves for binaries with spin, and should be useful for improving
analytic models of such binaries.
