GW190521: A Binary Black Hole Merger with a Total Mass of <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mn>150</mml:mn><mml:mtext> </mml:mtext><mml:mtext> </mml:mtext><mml:msub><mml:mrow><mml:mi>M</mml:mi></mml:mrow><mml:mrow><mml:mo stretchy="false">⊙</mml:mo></mml:mrow></mml:msub></mml:mrow></mml:math>
R. AbbottCalifornia Institute of TechnologyT. D. AbbottLouisiana State UniversityS. AbrahamInter-University Centre for Astronomy and AstrophysicsF. AcerneseComplesso Universitario di Monte S.AngeloK. AckleyMonash UniversityC. AdamsLIGO Livingston ObservatoryR. X. AdhikariCalifornia Institute of TechnologyV. B. AdyaAustralian National UniversityC. AffeldtLeibniz Universität HannoverM. AgathosFriedrich-Schiller-Universität JenaK. AgatsumaUniversity of BirminghamN. AggarwalNorthwestern UniversityO. D. AguiarInstituto Nacional de Pesquisas EspaciaisA. AichThe University of Texas Rio Grande ValleyL. AielloGran Sasso Science Institute (GSSI)A. AinInter-University Centre for Astronomy and AstrophysicsP. AjithTata Institute of Fundamental ResearchSarp AkçayFriedrich-Schiller-Universität JenaB. AllenUniversity of Illinois at Urbana-ChampaignA. AlloccaINFNP. A. AltinAustralian National UniversityA. AmatoUniversité de LyonShreya AnandCalifornia Institute of TechnologyA. AnanyevaCalifornia Institute of TechnologyS. B. AndersonCalifornia Institute of TechnologyW. G. AndersonUniversity of Wisconsin-MilwaukeeS. V. AngelovaUniversity of StrathclydeS. AnsoldiINFNS. AntierUniversité Paris DiderotS. AppertCalifornia Institute of TechnologyK. AraiCalifornia Institute of TechnologyM. ArayaCalifornia Institute of TechnologyJ. S. AreedaCalifornia State University FullertonM. ArèneUniversité Paris DiderotN. ArnaudEuropean Gravitational Observatory (EGO)S. M. AronsonUniversity of FloridaK. G. ArunChennai Mathematical InstituteY. AsaliColumbia UniversityS. AscenziGran Sasso Science Institute (GSSI)G. AshtonMonash UniversityS. M. AstonLIGO Livingston ObservatoryP. AstoneINFNF. AubinUniversité Grenoble AlpesP. AufmuthLeibniz Universität HannoverK. AultONealEmbry-Riddle Aeronautical UniversityC. AustinLouisiana State UniversityV. AvendanoMontclair State UniversityS. BabakUniversité Paris DiderotP. BaconUniversité Paris DiderotF. BadaraccoGran Sasso Science Institute (GSSI)M. K. M. BaderNikhefS. BaeKorea Institute of Science and Technology InformationA. M. BaerChristopher Newport UniversityJ. BairdUniversité Paris DiderotF. BaldacciniINFNG. BallardinEuropean Gravitational Observatory (EGO)S. W. BallmerSyracuse UniversityA. BalsEmbry-Riddle Aeronautical UniversityA. BalsamoChristopher Newport UniversityG. BaltusUniversité de LiègeS. BanagiriUniversity of MinnesotaD. BankarInter-University Centre for Astronomy and AstrophysicsR. S. BankarInter-University Centre for Astronomy and AstrophysicsJ. C. BarayogaCalifornia Institute of TechnologyC. BarbieriINFNB. C. BarishCalifornia Institute of TechnologyD. BarkerK. BarkettCaltech CaRTP. BarneoUniversitat de Barcelona (IEEC-UB)F. BaroneComplesso Universitario di Monte S.AngeloB. BarrUniversity of GlasgowL. BarsottiMassachusetts Institute of TechnologyM. BarsugliaUniversité Paris DiderotD. BartaWigner RCPJ. BartlettI. BartosUniversity of FloridaR. BassiriStanford UniversityA. BastiINFNM. BawajINFNJ. C. BayleyUniversity of GlasgowM. BazzanINFNB. BécsyMontana State UniversityM. BejgerPolish Academy of SciencesI. BelahceneUniversité Paris-SudA. S. BellUniversity of GlasgowD. BeniwalUniversity of AdelaideM. G. BenjaminEmbry-Riddle Aeronautical UniversityJ. D. BentleyUniversity of BirminghamF. BergaminMax Planck Institute for Gravitational Physics (Albert Einstein Institute)B. K. BergerStanford UniversityG. BergmannLeibniz Universität HannoverSebastiano BernuzziFriedrich-Schiller-Universität JenaC. P. L. BerryNorthwestern UniversityD. BersanettiINFNA. BertoliniNikhefJ. BetzwieserLIGO Livingston ObservatoryR. BhandareRRCATA. V. BhandariInter-University Centre for Astronomy and AstrophysicsJ. BidlerCalifornia State University FullertonE. BiggsUniversity of Wisconsin-Milwaukee
2020lv
ABI
Abstract
On May 21, 2019 at 03:02:29 UTC Advanced LIGO and Advanced Virgo observed a short duration gravitational-wave signal, GW190521, with a three-detector network signal-to-noise ratio of 14.7, and an estimated false-alarm rate of 1 in 4900 yr using a search sensitive to generic transients. If GW190521 is from a quasicircular binary inspiral, then the detected signal is consistent with the merger of two black holes with masses of 85_{-14}^{+21} M_{⊙} and 66_{-18}^{+17} M_{⊙} (90% credible intervals). We infer that the primary black hole mass lies within the gap produced by (pulsational) pair-instability supernova processes, with only a 0.32% probability of being below 65 M_{⊙}. We calculate the mass of the remnant to be 142_{-16}^{+28} M_{⊙}, which can be considered an intermediate mass black hole (IMBH). The luminosity distance of the source is 5.3_{-2.6}^{+2.4} Gpc, corresponding to a redshift of 0.82_{-0.34}^{+0.28}. The inferred rate of mergers similar to GW190521 is 0.13_{-0.11}^{+0.30} Gpc^{-3} yr^{-1}.
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Cited by 30 references