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Accès ouvert déclaré 2020 article

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

157Citations signalées, ce qui n’est pas une note de qualité
217Institutions déclarées
24Pays d’affiliation déclarés

Rattachement africain : us, in, it, au, de, gb, br, fr, nl, kr, be, es, hu, pl, ru, il, ch, jp, cn, tw, hk, ca, mc, pt. Niveau de preuve : code pays fourni par la source.

Le résumé fourni par la source

The gravitational-wave signal GW190521 is consistent with a binary black hole merger source at redshift 0.8 with unusually high component masses, $85^{+21}_{-14}\\,M_{\\odot}$ and $66^{+17}_{-18}\\,M_{\\odot}$, 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 $65 - 120\\,M_{\\odot}$. The probability that at least one of the black holes in GW190521 is in that range is 99.0%. The final mass of the merger $(142^{+28}_{-16}\\,M_{\\odot})$ classifies it as an intermediate-mass black hole. Under the assumption of a quasi-circular binary black hole coalescence, we detail the physical properties of GW190521's source binary and its post-merger remnant, including component masses and spin vectors. Three different waveform models, as well as direct comparison to numerical solutions of general relativity, yield consistent estimates of these properties. Tests of strong-field general relativity targeting the merger-ringdown stages of coalescence indicate consistency of the observed signal with theoretical predictions. We estimate the merger rate of similar systems to be $0.13^{+0.30}_{-0.11}\\,{\\rm Gpc}^{-3}\\,\\rm{yr}^{-1}$. We discuss the astrophysical implications of GW190521 for stellar collapse, and for the possible formation of black holes in the pair-instability mass gap through various channels: via (multiple) stellar coalescence, or via hierarchical merger of lower-mass black holes in star clusters or in active galactic nuclei. We find it to be unlikely that GW190521 is a strongly lensed signal of a lower-mass black hole binary merger. We also discuss more exotic possible sources for GW190521, including a highly eccentric black hole binary, or a primordial black hole binary.

Ce résumé expose les affirmations des auteurs. BNTIC ne l’interprète pas comme une validation indépendante des résultats.

Le contrôle bibliographique ouvert

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Les institutions déclarées

California Institute of TechnologyLouisiana State UniversityInter-University Centre for Astronomy and AstrophysicsUniversity of SalernoIstituto Nazionale di Fisica Nucleare, Sezione di NapoliARC Centre of Excellence for Gravitational Wave DiscoveryMonash UniversityLIGO Scientific CollaborationAustralian National UniversityLeibniz University HannoverMax Planck SocietyMax Planck Institute for Gravitational PhysicsUniversity of CambridgeFriedrich Schiller University JenaUniversity of BirminghamNorthwestern UniversityInstituto Nacional de Pesquisas EspaciaisThe University of Texas Rio Grande ValleyIstituto Nazionale di Fisica Nucleare, Laboratori Nazionali del Gran SassoGran Sasso Science InstituteTata Institute of Fundamental ResearchInternational Centre for Theoretical SciencesUniversity of Illinois Urbana-ChampaignIstituto Nazionale di Fisica Nucleare, Sezione di PisaLyon 1 UniversitéCentre National de la Recherche ScientifiqueLaboratoire des Matériaux AvancésInstitut de Physique des 2 Infinis de LyonUniversity of Wisconsin–MilwaukeeUniversity of StrathclydeUniversity of UdineUniversity of TriesteIstituto Nazionale di Fisica Nucleare, Sezione di TriesteDélégation Paris 7Université Paris CitéCommissariat à l'Énergie Atomique et aux Énergies AlternativesLaboratoire AstroParticule et CosmologieSorbonne Paris CitéCalifornia State University, FullertonUniversité Paris-SudUniversité Paris-SaclayInstitut National de Physique Nucléaire et de Physique des ParticulesEuropean Gravitational ObservatoryUniversity of FloridaChennai Mathematical InstituteColumbia UniversityIstituto Nazionale di Fisica Nucleare, Roma Tor VergataIstituto Nazionale di Fisica Nucleare, Sezione di Roma ILaboratoire d’Annecy de Physique des ParticulesUniversité Savoie Mont BlancUniversité Grenoble AlpesEmbry–Riddle Aeronautical UniversityMontclair State UniversityNational Institute for Subatomic PhysicsKorea Institute of Science & Technology InformationChristopher Newport UniversityUniversity of PerugiaIstituto Nazionale di Fisica Nucleare, Sezione di PerugiaSyracuse UniversityUniversity of LiègeUniversity of MinnesotaIstituto Nazionale di Fisica Nucleare, Sezione di Milano BicoccaUniversity of Milano-BicoccaUniversitat de BarcelonaUniversity of GlasgowMassachusetts Institute of TechnologyHUN-REN Wigner Research Centre for PhysicsStanford UniversityUniversity of PisaUniversità di CamerinoUniversity of PaduaIstituto Nazionale di Fisica Nucleare, Sezione di PadovaMontana State UniversityNicolaus Copernicus Astronomical CenterPolish Academy of SciencesThe University of AdelaideIstituto Nazionale di Fisica Nucleare, Sezione di GenovaRaja Ramanna Centre for Advanced TechnologyLomonosov Moscow State UniversityUniversity of the West of ScotlandBar-Ilan UniversityRochester Institute of TechnologyUniversity of UrbinoIstituto Nazionale di Fisica Nucleare, Sezione di FirenzeUniversité Côte d'AzurAstrophysique Relativiste, Théories, Expériences, Métrologie, Instrumentation, SignauxObservatoire de la Côte d’AzurThe University of Western AustraliaIstituto Nazionale di Fisica Nucleare, Gruppo Collegato di SalernoUniversity of ZurichFonctions Optiques pour les Technologies de l’informationUniversité de RennesUniversity of OregonUniversité Paris Sciences et LettresLaboratoire Kastler BrosselÉcole Normale Supérieure - PSLSorbonne UniversitéUCLouvainUniversity of WarsawVrije Universiteit AmsterdamUniversity of Maryland, College ParkGeorgia Institute of TechnologyInstitut Lumière MatièreGoddard Space Flight CenterUniversity of GenoaThe University of TokyoTsinghua UniversityTexas Tech UniversityUniversity of Rome Tor VergataMissouri University of Science and TechnologyUniversitat de ValènciaCentro Ricerche Enrico FermiNational Tsing Hua UniversityCharles Sturt UniversityFlatiron Health (United States)Flatiron InstituteStony Brook UniversityUniversity of ChicagoChinese University of Hong KongInstitut de PhysiqueSeoul National UniversityPusan National UniversityOsservatorio Astronomico di PadovaThe University of MelbourneUniversitat de les Illes BalearsUniversité Libre de BruxellesCardiff UniversityUniversity of Rhode IslandBellevue CollegeEötvös Loránd UniversityCalifornia State University Los AngelesUniversität HamburgInstitute for Plasma ResearchUniversidade de Santiago de CompostelaUniversity of SheffieldUniversity of ParmaUniversity of SannioUniversity of TrentoIstituto Nazionale di Fisica Nucleare, Trento Institute for Fundamental Physics And ApplicationsSapienza University of RomeUniversity of SassariIstituto Nazionale di Fisica Nucleare, Laboratori Nazionali del SudUniversity of PortsmouthWest Virginia UniversityPennsylvania State UniversityColorado State UniversityHUN-REN Institute for Nuclear ResearchHungarian Academy of SciencesUniversity of BasilicataNational Astronomical Observatory of JapanIstituto Nazionale di Fisica Nucleare, Sezione di TorinoIndian Institute of Technology BombayUniversity of SzegedLeiden UniversityDelta Institute for Theoretical PhysicsUniversity of AmsterdamAstronomical Observatory of CapodimonteUniversity of MichiganAmerican UniversityUniversity of California, BerkeleyMaastricht UniversityResearch & Development Establishment (Engrs.)University of BiałystokUniversity of LondonKing's College LondonUniversity College LondonUniversity of SouthamptonUniversity of Washington BothellInstitute of Applied PhysicsEwha Womans UniversityInje UniversityNational Institute for Mathematical SciencesUlsan National Institute of Science and TechnologyBard CollegeNational Centre for Nuclear ResearchInstitute of MathematicsCornell UniversityPolytechnique MontréalUniversité de MontréalHillsdale CollegeKorea Astronomy and Space Science InstituteMarshall Space Flight CenterUniversity of WashingtonRoma Tre UniversityIstituto Nazionale di Fisica Nucleare, Sezione di Roma TreESPCI ParisTongji UniversitySouthern University and Agricultural and Mechanical CollegeThe University of Texas at AustinScientific Centre of MonacoIndian Institute of Technology MadrasInstitut Pluridisciplinaire Hubert CurienUniversité de StrasbourgInstitut des Hautes Études ScientifiquesIndian Institute of Science Education and Research KolkataRadboud University NijmegenKenyon CollegeWhitman CollegeHobart and William Smith CollegesLancaster UniversitySwinburne University of TechnologyTrinity UniversityUniversity of TurinIndian Institute of Technology GandhinagarBrera Astronomical ObservatoryUniversity of LisbonInstitute of Astrophysics and Space SciencesMarquette UniversityIndian Institute of Technology HyderabadOsservatorio di Astrofisica e Scienza dello SpazioNational Institute for AstrophysicsUniversidade Federal do Rio Grande do NorteVillanova UniversityAndrews UniversityCarleton CollegeUtrecht UniversityConcordia University Wisconsin

Une affiliation ne permet pas de déduire la nationalité d’un auteur.

Les sujets associés

Pulsars and Gravitational Waves ResearchGamma-ray bursts and supernovaeAstrophysical Phenomena and Observations

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