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We estimated the sensitivity of the upcoming advanced, ground-basedgravitational-wave observatories (the upgraded LIGO and Virgo and the KAGRAinterferometers) to coalescing intermediate mass black hole binaries (IMBHB).We added waveforms modeling the gravitational radiation emitted by IMBHBs todetectors' simulated data and searched for the injected signals with thecoherent WaveBurst algorithm. The tested binary's parameter space coversnon-spinning IMBHBs with source-frame total masses between 50 and 1050$\text{M}_{\odot}$ and mass ratios between $1/6$ and 1$\,$. We found thatadvanced detectors could be sensitive to these systems up to a range of a fewGpc. A theoretical model was adopted to estimate the expected observationrates, yielding up to a few tens of events per year. Thus, our results indicatethat advanced detectors will have a reasonable chance to collect the firstdirect evidence for intermediate mass black holes and open a new, intriguingchannel for probing the Universe over cosmological scales.

Prospects for intermediate mass black hole binary searches with advanced gravitational-wave detectors