Search for intermediate mass black hole binaries in the first observing run of Advanced LIGO

(LIGO Scientific Collaboration and Virgo Collaboration)

Research output: Contribution to journalArticleResearchpeer-review

38 Citations (Scopus)

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.

Original languageEnglish
Article number022001
JournalPhysical Review D
Volume96
Issue number2
DOIs
StatePublished - 15 Jul 2017

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LIGO (observatory)
gravitational waves
matched filters
stellar mass
sky
confidence
bursts
coverings
angular momentum
filters
orbitals
sensitivity
detectors

Cite this

(LIGO Scientific Collaboration and Virgo Collaboration). / Search for intermediate mass black hole binaries in the first observing run of Advanced LIGO. In: Physical Review D. 2017 ; Vol. 96, No. 2.
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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.",
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Search for intermediate mass black hole binaries in the first observing run of Advanced LIGO. / (LIGO Scientific Collaboration and Virgo Collaboration).

In: Physical Review D, Vol. 96, No. 2, 022001, 15.07.2017.

Research output: Contribution to journalArticleResearchpeer-review

TY - JOUR

T1 - Search for intermediate mass black hole binaries in the first observing run of Advanced LIGO

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AU - Arun, K. G.

AU - Ascenzi, S.

AU - Ashton, G.

AU - Ast, M.

AU - Aston, S. M.

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AB - 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.

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