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Properties and Astrophysical Implications of the 150 M Binary Black Hole Merger GW190521

Abbott, R; Abbott, T D; Abraham, S; Acernese, F; Ackley, K; Adams, C; Adya, Vaishali; Adhikari, Rana X; Affeldt, C; Agathos, M; Agatsuma, K; Altin, Paul; Eichholz, Johannes; Forsyth, Perry; Grace, Benjamin; Holland, Nathan; Kijbunchoo, Nutsinee; McClelland, David; McManus, David; McRae, Terry; Scott, Susan M.; Shaddock, Daniel; Toyra, Daniel; Ward, Robert; Yap, Min Jet


The gravitational-wave signal GW190521 is consistent with a binary black hole (BBH) merger source at redshift 0.8 with unusually high component masses, ${85}_{-14}^{+21}$ M and ${66}_{-18}^{+17}$ M, compared to previously reported events, and shows mild evidence for spin-induced orbital precession. The primary falls in the mass gap predicted by (pulsational) pair-instability supernova theory, in the approximate range 65-120 M. The probability that at least one of the black holes in GW190521 is...[Show more]

CollectionsANU Research Publications
Date published: 2020
Type: Journal article
Source: Astrophysical Journal Letters
DOI: 10.3847/2041-8213/aba493
Access Rights: Open Access


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