Post-innermost stable circular orbit ringdown amplitudes in extreme mass ratio inspiral

An extreme mass ratio inspiral consists of two parts: adiabatic inspiral and plunge. The plunge trajectory from the innermost stable circular orbit is special (somewhat independent of initial conditions). We write an expression for its solution in closedform and for the emitted waveform. In particular we extract an expression for the associated black-hole ringdown amplitudes, and evaluate them numerically.