2019
DOI: 10.3847/2041-8213/ab3800
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Abstract: We present results on the mass, spin, and redshift distributions with phenomenological population models using the 10 binary black hole (BBH) mergers detected in the first and second observing runs completed by Advanced LIGO and Advanced Virgo. We constrain properties of the BBH mass spectrum using models with a range of parameterizations of the BBH mass and spin distributions. We find that the mass distribution of the more massive BH in such binaries is well approximated by models with no more than 1% of BHs … Show more

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Cited by 752 publications
(712 citation statements)
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“…Nine additional BBHs were detected by the LIGO-Virgo Collaboration after GW150914, in the first two observing runs, and these nine detections informed models of the population of BBHs [32]. We now repeat our calculations of ρ tot for populations that are consistent with the models in [32].…”
Section: Power-law Mass-function Populationsmentioning
confidence: 71%
“…Nine additional BBHs were detected by the LIGO-Virgo Collaboration after GW150914, in the first two observing runs, and these nine detections informed models of the population of BBHs [32]. We now repeat our calculations of ρ tot for populations that are consistent with the models in [32].…”
Section: Power-law Mass-function Populationsmentioning
confidence: 71%
“…• For the merger events detected so far by LIGO-Virgo, the effective spin parameter of the binary is compatible to zero, except possibly for few high-mass events [3,4,[20][21][22]. We have shown that a primordial origin of these BH binaries could naturally explain this distribution, especially in the likely scenario in which accretion is quenched at z 10 due to structure formation [41].…”
Section: Discussionmentioning
confidence: 99%
“…where M 1 and M 2 are the individual BH masses, J 1 and J 2 are the corresponding angularmomentum vectors, andL is the direction of the orbital angular momentum. From the observational point of view, there is a general tendency for the effective spin parameter of merger events detected so far to be compatible with zero [3,4], with possible few exceptions [4,[20][21][22] of high-mass events (total mass larger than 50 M ). The available data indicates that the dispersion of χ eff around zero grows with the mass [23].…”
Section: Introductionmentioning
confidence: 99%
“…The ongoing search for gravitational waves is starting to provide direct constraints on the BH mass function and probe the theoretically predicted PISN BH mass gap (Fishbach & Holz 2017;Abbott et al 2019b;Stevenson et al 2019). This offers an unprecedented tool to understand the physics of their massive star progenitors.…”
Section: Discussionmentioning
confidence: 99%