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The detection of an intermediate-mass black hole population ($10^2-10^6$$M_{\odot}$) will provide clues to their formation environments (e.g., disks ofactive galactic nuclei, globular clusters) and illuminate a potential pathwayto produce supermassive black holes. Ground-based gravitational-wave detectorsare sensitive to mergers that can form intermediate-mass black holes weighingup to $\sim 450\ M_{\odot}$. However, ground-based detector data containnumerous incoherent short duration noise transients that can mimic thegravitational-wave signals from merging intermediate-mass black holes, limitingthe sensitivity of searches. Here we follow-up on binary black hole mergercandidates using a ranking statistic that measures the coherence or incoherenceof triggers in multiple-detector data. We use this statistic to rank candidateevents, initially identified by all-sky search pipelines, with lab-frame totalmasses $>55\ M_{\odot}$ using data from LIGO's second observing run. Ouranalysis does not yield evidence for new intermediate-mass black holes.However, we find support for eight stellar-mass binary black holes not reportedin the first LIGO-Virgo gravitational wave transient catalog GWTC-1, seven ofwhich have been previously reported by other catalogs.

A follow-up on intermediate-mass black hole candidates in the second LIGO-Virgo observing run with the Bayes Coherence Ratio