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We report results from a search for gravitational waves produced by perturbedintermediate mass black holes (IMBH) in data collected by LIGO and Virgobetween 2005 and 2010. The search was sensitive to astrophysical sources thatproduced damped sinusoid gravitational wave signals, also known as ringdowns,with frequency $50\le f_{0}/\mathrm{Hz} \le 2000$ and decay timescale$0.0001\lesssim \tau/\mathrm{s} \lesssim 0.1$ characteristic of those producedin mergers of IMBH pairs. No significant gravitational wave candidate wasdetected. We report upper limits on the astrophysical coalescence rates ofIMBHs with total binary mass $50 \le M/\mathrm{M}_\odot \le 450$ and componentmass ratios of either 1:1 or 4:1. For systems with total mass $100 \leM/\mathrm{M}_\odot \le 150$, we report a 90%-confidence upper limit on the rateof binary IMBH mergers with non-spinning and equal mass components of$6.9\times10^{-8}\,$Mpc$^{-3}$yr$^{-1}$. We also report a rate upper limit forringdown waveforms from perturbed IMBHs, radiating 1% of their mass asgravitational waves in the fundamental, $\ell=m=2$, oscillation mode, that isnearly three orders of magnitude more stringent than previous results.

Search for gravitational wave ringdowns from perturbed intermediate mass black holes in LIGO-Virgo data from 2005-2010