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|Title:||Search for intermediate mass black hole binaries in the first observing run of Advanced LIGO|
|Citation:||Physical Review D, 2017; 96(2):022001-1-022001-14|
|Publisher:||American Physical Society|
|B. P. Abbott, R. Abbott, T. D. Abbott … Won Kim … David J. Ottaway … Peter J. Veitch … et al.|
|Abstract:||During their first observational run, the two Advanced LIGO detectors attained an unprecedented sensitivity, resulting in the first direct detections of gravitational-wave signals produced by stellar-mass binary black hole systems. This paper reports on an all-sky search for gravitational waves (GWs) from merging intermediate mass black hole binaries (IMBHBs). The combined results from two independent search techniques were used in this study: the first employs a matched-filter algorithm that uses a bank of filters covering the GW signal parameter space, while the second is a generic search for GW transients (bursts). No GWs from IMBHBs were detected; therefore, we constrain the rate of several classes of IMBHB mergers. The most stringent limit is obtained for black holes of individual mass 100 M⊙, with spins aligned with the binary orbital angular momentum. For such systems, the merger rate is constrained to be less than 0.93 Gpc−3 yr−1 in comoving units at the 90% confidence level, an improvement of nearly 2 orders of magnitude over previous upper limits.|
|Rights:||© 2017 American Physical Society|
|Appears in Collections:||Physics publications|
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