Observation of Gravitational Waves from Two Neutron Star-Black Hole Coalescences
R. AbbottLIGO Laboratory, California Institute of Technology, Pasadena, CA 91125, USAT. D. AbbottLouisiana State University, Baton Rouge, LA 70803, USAS. AbrahamInter-University Centre for Astronomy and Astrophysics, Pune 411007, IndiaF. AcerneseINFN, Sezione di Napoli, Complesso Universitario di Monte S.Angelo, I-80126 Napoli, ItalyK. AckleyMonash UniversityA. AdamsChristopher Newport University, Newport News, VA 23606, USAC. AdamsLIGO Livingston Observatory, Livingston, LA 70754, USAR. X. AdhikariLIGO Laboratory, California Institute of Technology, Pasadena, CA 91125, USAV. B. AdyaOzGrav, Australian National University, Canberra, ACT 0200, AustraliaC. AffeldtMax Planck Institute for Gravitational Physics (Albert Einstein Institute), D-30167 Hannover, GermanyD. AgarwalInter-University Centre for Astronomy and Astrophysics, Pune 411007, IndiaM. AgathosTheoretisch-Physikalisches Institut, Friedrich-Schiller-Universität Jena, D-07743 Jena, GermanyK. AgatsumaUniversity of Birmingham, Birmingham B15 2TT, UKN. AggarwalCenter for Interdisciplinary Exploration & Research in Astrophysics (CIERA), Northwestern University, Evanston, IL 60208, USAO. D. AguiarInstituto Nacional de Pesquisas Espaciais, 12227-010 São José dos Campos, São Paulo, BrazilL. AielloINFN, Laboratori Nazionali del Gran Sasso, I-67100 Assergi, ItalyA. AinUniversità di Pisa, I-56127 Pisa, ItalyP. AjithInternational Centre for Theoretical Sciences, Tata Institute of Fundamental Research, Bengaluru 560089, IndiaT. AkutsuAdvanced Technology Center, National Astronomical Observatory of Japan (NAOJ), Mitaka City, Tokyo 181-8588, JapanK. M. AlemanCalifornia State University Fullerton, Fullerton, CA 92831, USAB. AllenNCSA, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USAA. AlloccaINFN, Sezione di Napoli, Complesso Universitario di Monte S.Angelo, I-80126 Napoli, ItalyP. A. AltinOzGrav, Australian National University, Canberra, ACT 0200, AustraliaA. AmatoUniversité de Lyon, Université Claude Bernard Lyon 1, CNRS, Institut Lumière Matière, F-69622 Villeurbanne, FranceShreya AnandLIGO Laboratory, California Institute of Technology, Pasadena, CA 91125, USAA. AnanyevaLIGO Laboratory, California Institute of Technology, Pasadena, CA 91125, USAS. B. AndersonLIGO Laboratory, California Institute of Technology, Pasadena, CA 91125, USAW. G. AndersonUniversity of Wisconsin–Milwaukee, Milwaukee, WI 53201, USAMasaki AndoDepartment of Physics, The University of Tokyo, Bunkyo-ku, Tokyo 113-0033, JapanS. V. AngelovaSUPA, University of Strathclyde, Glasgow G1 1XQ, UKS. AnsoldiINFN, Sezione di Trieste, I-34127 Trieste, ItalyJavier M. AntelisEmbry-Riddle Aeronautical University, Prescott, AZ 86301, USAS. AntierUniversité de Paris, CNRS, Astroparticule et Cosmologie, F-75006 Paris, FranceS. AppertLIGO Laboratory, California Institute of Technology, Pasadena, CA 91125, USAKoya AraiThe University of TokyoKoji AraiLIGO Laboratory, California Institute of Technology, Pasadena, CA 91125, USAY. AraiInstitute for Cosmic Ray Research (ICRR), KAGRA Observatory, The University of Tokyo, Kashiwa City, Chiba 277-8582, JapanS. ArakiAccelerator Laboratory, High Energy Accelerator Research Organization (KEK), Tsukuba City, Ibaraki 305-0801, JapanA. ArayaEarthquake Research Institute, The University of Tokyo, Bunkyo-ku, Tokyo 113-0032, JapanM. C. ArayaLIGO Laboratory, California Institute of Technology, Pasadena, CA 91125, USAJ. S. AreedaCalifornia State University Fullerton, Fullerton, CA 92831, USAM. ArèneUniversité de Paris, CNRS, Astroparticule et Cosmologie, F-75006 Paris, FranceN. AritomiDepartment of Physics, The University of Tokyo, Bunkyo-ku, Tokyo 113-0033, JapanN. ArnaudInstitut National de Physique Nucléaire et de Physique des ParticulesAronson, S.M.University of Florida, Gainesville, FL 32611, USAK. G. ArunChennai Mathematical Institute, Chennai 603103, IndiaHideki AsadaDepartment of Mathematics and Physics, Hirosaki University, Hirosaki City, Aomori 036-8561, JapanY. AsaliColumbia University, New York, NY 10027, USAG. AshtonMonash UniversityY. AsoKamioka Branch, National Astronomical Observatory of Japan (NAOJ), Kamioka-cho, Hida City, Gifu 506-1205, JapanS. M. AstonLIGO Livingston Observatory, Livingston, LA 70754, USAP. AstoneINFN, Sezione di Roma, I-00185 Roma, ItalyF. AubinUniversité Grenoble AlpesP. AufmuthMax Planck Institute for Gravitational Physics (Albert Einstein Institute), D-30167 Hannover, GermanyK. AultONealEmbry-Riddle Aeronautical University, Prescott, AZ 86301, USAC. AustinLouisiana State University, Baton Rouge, LA 70803, USAS. BabakLaboratoire AstroParticule et CosmologieF. BadaraccoINFN, Laboratori Nazionali del Gran Sasso, I-67100 Assergi, ItalyM. K. M. BaderNikhef, Science Park 105, 1098 XG Amsterdam, NetherlandsS. BaeKorea Institute of Science and Technology Information (KISTI), Yuseong-gu, Daejeon 34141, Republic of KoreaY. BaeNational Institute for Mathematical Sciences, Daejeon 34047, Republic of KoreaA. M. BaerChristopher Newport University, Newport News, VA 23606, USAS. BagnascoINFN Sezione di Torino, I-10125 Torino, ItalyBai, Y.LIGO Laboratory, California Institute of Technology, Pasadena, CA 91125, USALuca BaiottiInternational College, Osaka University, Toyonaka City, Osaka 560-0043, JapanJ. BairdUniversité Paris CitéR. BajpaiSchool of High Energy Accelerator Science, The Graduate University for Advanced Studies (SOKENDAI), Tsukuba City, Ibaraki 305-0801, JapanM. BallUniversity of Oregon, Eugene, OR 97403, USAG. BallardinEuropean Gravitational Observatory (EGO), I-56021 Cascina, Pisa, ItalyS. W. BallmerSyracuse University, Syracuse, NY 13244, USAM. BalsEmbry-Riddle Aeronautical University, Prescott, AZ 86301, USAA. BalsamoChristopher Newport University, Newport News, VA 23606, USAG. BaltusUniversité de Liège, B-4000 Liège, BelgiumS. BanagiriUniversity of Minnesota, Minneapolis, MN 55455, USAD. BankarInter-University Centre for Astronomy and Astrophysics, Pune 411007, IndiaR. S. BankarInter-University Centre for Astronomy and Astrophysics, Pune 411007, IndiaJ. C. BarayogaLIGO Laboratory, California Institute of Technology, Pasadena, CA 91125, USAC. BarbieriUniversità degli Studi di Milano-Bicocca, I-20126 Milano, ItalyB. C. BarishLIGO Laboratory, California Institute of Technology, Pasadena, CA 91125, USAD. BarkerP. BarneoInstitut de Ciències del Cosmos, Universitat de Barcelona, C/Martí i Franquès 1, Barcelona, E-08028, SpainF. BaroneINFN, Sezione di Napoli, Complesso Universitario di Monte S.Angelo, I-80126 Napoli, ItalyB. BarrSUPA, University of Glasgow, Glasgow G12 8QQ, UKL. BarsottiLIGO Laboratory, Massachusetts Institute of Technology, Cambridge, MA 02139, USAM. BarsugliaLaboratoire AstroParticule et CosmologieD. BartaWigner RCP, RMKI, H-1121 Budapest, Konkoly Thege Miklós út 29-33, HungaryJ. BartlettM. A. BartonGravitational Wave Science Project, National Astronomical Observatory of Japan (NAOJ), Mitaka City, Tokyo 181-8588, JapanI. BartosUniversity of Florida, Gainesville, FL 32611, USAR. BassiriStanford University, Stanford, CA 94305, USABasti, A.INFN, Sezione di Pisa, I-56127 Pisa, ItalyM. BawajUniversità di Perugia, I-06123 Perugia, ItalyJ. C. BayleySUPA, University of Glasgow, Glasgow G12 8QQ, UKA. C. BaylorUniversity of Wisconsin–Milwaukee, Milwaukee, WI 53201, USAM. BazzanUniversità di Padova, Dipartimento di Fisica e Astronomia, I-35131 Padova, ItalyB. BécsyMontana State University, Bozeman, MT 59717, USAV. M. BedakihaleInstitute for Plasma Research, Bhat, Gandhinagar 382428, IndiaM. BejgerNicolaus Copernicus Astronomical Center, Polish Academy of Sciences, 00-716, Warsaw, PolandI. BelahceneUniversité Paris-Saclay, CNRS/IN2P3, IJCLab, F-91405 Orsay, FranceV. BenedettoDipartimento di Ingegneria, Università del Sannio, I-82100 Benevento, Italy
2021en
ABI
Annotatsiya
We report the observation of gravitational waves from two compact binary coalescences in LIGO's and Virgo's third observing run with properties consistent with neutron star-black hole (NSBH) binaries. The two events are named GW200105_162426 and GW200115_042309, abbreviated as GW200105 and GW200115; the first was observed by LIGO Livingston and Virgo and the second by all three LIGO-Virgo detectors. The source of GW200105 has component masses, whereas the source of GW200115 has component masses and (all measurements quoted at the 90% credible level). The probability that the secondary's mass is below the maximal mass of a neutron star is 89%-96% and 87%-98%, respectively, for GW200105 and GW200115, with the ranges arising from different astrophysical assumptions. The source luminosity distances are and, respectively. The magnitude of the primary spin of GW200105 is less than 0.23 at the 90% credible level, and its orientation is unconstrained. For GW200115, the primary spin has a negative spin projection onto the orbital angular momentum at 88% probability. We are unable to constrain the spin or tidal deformation of the secondary component for either event. We infer an NSBH merger rate density of when assuming that GW200105 and GW200115 are representative of the NSBH population or under the assumption of a broader distribution of component masses. © 2021. The Author(s). Published by the American Astronomical Society.
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