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Multimessenger observations of a flaring blazar coincident with high-energy neutrino IceCube-170922A Domínguez Díaz, Alberto Barrio Uña, Juan Abel Contreras González, José Luis Fonseca González, María Victoria López Moya, Marcos Nievas Rosillo, Mireia Fidalgo, David Sivakoff, Gregory American Association for the Advancement of Science 53 Performance Telescope Spectrograph Origin Física (Física) 22 Física Firmado por 966 autores (MAGIC Collaboration) Neutrino emission from a flaring blazar Neutrinos interact only very weakly with matter, but giant detectors have succeeded in detecting small numbers of astrophysical neutrinos. Aside from a diffuse background, only two individual sources have been identified: the Sun and a nearby supernova in 1987. A multiteam collaboration detected a high-energy neutrino event whose arrival direction was consistent with a known blazar—a type of quasar with a relativistic jet oriented directly along our line of sight. The blazar, TXS 0506+056, was found to be undergoing a gamma-ray flare, prompting an extensive multiwavelength campaign. Motivated by this discovery, the IceCube collaboration examined lower-energy neutrinos detected over the previous several years, finding an excess emission at the location of the blazar. Thus, blazars are a source of astrophysical neutrinos. National Science Foundation Wisconsin Alumni Research Foundation University of Wisconsin-Madison Open Science Grid University of Illinois United States Department of Energy University of Maryland Michigan State University Marquette University Fonds de la Recherche Scientifique (Francia) Fund for Scientific Research (Belgium) FWO Odysseus programme Belgian Federal Science Policy Office Deutsche Forschungsgemeinschaft German Research Foundation Helmholtz Association Rheinisch-Westfälische Technische Hochschule Aachen (Alemania) Swedish Research Council Swedish Polar Research Secretariat Swedish National Infrastructure for Computing Knut & Alice Wallenberg Foundation Australian Research Council Natural Sciences and Engineering Research Council of Canada Calcul Quebec (Canada) Compute Ontario (Canada) Canada Foundation for Innovation WestGrid Compute Canada Villum Fonden Danmarks Grundforskningsfond (Dinamarca) Royal Society of New Zealand Marsden Fund Japan Society for Promotion of Science Chiba University National Research Foundation of Korea Swiss National Science Foundation Istituto Nazionale Astrofisica (Italy) Centre National D'etudes Spatiales (Francia) United States Department of Energy Bundesministerium für Bildung und Forschung (Deutschland) Max Planck Society Istituto Nazionale di Fisica Nucleare (Italia) Ministry of Education, Culture, Sports, Science and Technology (Japan) Japan Society for the Promotion of Science Ministerio de Ciencia, Innovación y Universidades (España) Croatian Science Foundation University of Rijeka (Croacia) German Research Foundation Polish National Research Centre Ministério da Ciência, Tecnologia e Inovações (Brasil) Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (Brasil) Estado do Rio De Janeiro (Brasil) Agenzia Spaziale Italiana Gordon and Betty Moore Foundation Mt. Cuba Astronomical Foundation Center for Cosmology and AstroParticle Physics (USA) Chinese Academy of Sciences South America Center for Astronomy National Natural Science Foundation of China Comision Nacional de Investigacion Cientifica y Tecnologica (Chile) Robert Martin Ayers Sciences Fund Los Alamos National Laboratory Consejo Nacional de Ciencia y Tecnologia (Mexico) Laboratorio Nacional HAWC de rayos gamma (Mexico) L'Oreal Group Universidad Nacional Autonoma de Mexico Benemérita Universidad Autónoma De Puebla (Mexico) Secretaria de Educación Pública (Mexico) Royal Society Polish Science Centre grant Universidad Michoacana (Mexico) Ministre de l'Enseignement supérieur, de la Recherche et de l'Innovation (France) Centre National de la Recherche Scientifique (France) French Atomic Energy Commission UK Research & Innovation Science & Technology Facilities Council National Science Centre (Poland) South African Department of Science and Technology National Research Foundation University of Namibia National Commission on Research, Science AMP; Technology of Namibia Japan Society for the Promotion of Science University of Amsterdam European Space Agency Centre National D'etudes Spatiales (France) Ministerio de Defensa (España) National Aeronautics & Space Administration University of Leicester (UK) Smithsonian Institution Depto. de Estructura de la Materia, Física Térmica y Electrónica Fac. de Ciencias Físicas TRUE pub 2024-02-09T13:13:05Z 2024-02-09T13:13:05Z 2018 journal article AM https://hdl.handle.net/20.500.14352/100948 0036-8075 10.1126/science.aat1378 1095-9203 eng DE-AC02-76SF00515 info:eu-repo/grantAgreement/MINECO/FPA2015-69818-P info:eu-repo/grantAgreement/FPA2012-36668 info:eu-repo/grantAgreement/MINECO/FPA2015-68378-P info:eu-repo/grantAgreement/MINECO/FPA2015-69210-C6-2-R info:eu-repo/grantAgreement/FPA201569210-C6-4-R info:eu-repo/grantAgreement/MINECO/FPA2015-69210-C6-6-R info:eu-repo/grantAgreement/MINECO/AYA2015-71042-P info:eu-repo/grantAgreement/AYA2016-76012-C3-1-P info:eu-repo/grantAgreement/MINECO//ESP2015-71662-C2-2-P info:eu-repo/grantAgreement/MICINN/CSD2009-00064 info:eu-repo/grantAgreement/MINECO/SEV-2012-0234/ES info:eu-repo/grantAgreement/MINECO/SEV-2015-0548 info:eu-repo/grantAgreement/MINECO/MDM-2014-0369 info:eu-repo/grantAgreement/IP-2016-06-9782 13.12.1.3.02 SFB823/C4 SFB876/C3 UMO-2016/22/M/ST9/00382 FAPERJ I/028/12/2 GBMF5490 AST-1515927 PHY-1714479 11573003 1151445 IC120009 271051 232656 260378 179588 239762 254964 271737 info:eu-repo/grantAgreement/EC/FP7/258865/EU 243290 132197 281653 Catedras 873 1563 IG100317 IN111315 IN111716-3 IA102715 109916 IA102917 IN112218 180385 DEC-2014/13/B/ST9/945 2016/22/M/ST9/00382 2013-025-R.1 info:eu-repo/grantAgreement/EC/H2020/654215/EU 50 OG 1101 1601 JP23740143 JP25800103 JP16H02158 JP17K14253 JP17H04830 JP26800103 JP24103003 1337566 NNX17AI95G NAS5-00136 PGSD2-490318-2016 RGPIN-402752-2011 RGPIN-06569-2016 FT140101082 ES/N013956/1 ST/H002391/1 ST/J001465/1 ST/P000770/1 ST/L00061X/1 ST/R000484/1 ST/P006892/1 ST/M000095/1 ST/P002218/1 ST/F007159/1 ST/M003035/1 PP/E001149/1 00013161 1626251 1337566 1607128 1402740 1407326 1505296 1505811 IceCube Collaboration, MAGIC, AGILE, ASAS-SN, HAWC, HESS, ... & Kappesser, D. (2018). Multimessenger observations of a flaring blazar coincident with high-energy neutrino IceCube-170922A. Science, 361(6398), eaat1378. open access application/pdf American Association for the Advancement of Science