Evidence for neutrino emission from the nearby active galaxy NGC 1068
R. AbbasiDepartment of Physics, Loyola University Chicago, Chicago, IL 60660, USAM. AckermannVrije Universiteit BrusselJ. AdamsDepartment of Physics and Astronomy, University of Canterbury, Private Bag 4800, Christchurch, New ZealandJ. A. AguilarScience Faculty CP230, Université Libre de Bruxelles, B-1050 Brussels, BelgiumM. AhlersVrije Universiteit BrusselM. AhrensVrije Universiteit BrusselJ. M. AlameddineVrije Universiteit BrusselC. AlispachVrije Universiteit BrusselA. A. AlvesVrije Universiteit BrusselN. M. AminVrije Universiteit BrusselK. AndeenVrije Universiteit BrusselT. AndersonVrije Universiteit BrusselG. AntonVrije Universiteit BrusselC. ArgüellesDepartment of Physics and Laboratory for Particle Physics and Cosmology, Harvard Univer-sity, Cambridge, MA 02138, USAY. AshidaVrije Universiteit BrusselSpencer AxaniDepartment of Physics, Massachusetts Institute of Technology, Cambridge, MA 02139, USAX. BaiVrije Universiteit BrusselAswathi BalagopalA. BarbanoVrije Universiteit BrusselS. W. BarwickVrije Universiteit BrusselB. BastianVrije Universiteit BrusselV. BasuVrije Universiteit BrusselS. BaurScience Faculty CP230, Université Libre de Bruxelles, B-1050 Brussels, BelgiumR. BayDepartment of Physics, University of California, Berkeley, CA 94720, USAJ. J. BeattyK.-H. BeckerVrije Universiteit BrusselJ. Becker TjusFakultät für Physik & Astronomie, Ruhr-Universität Bochum, D-44780 Bochum, GermanyChiara BellenghiVrije Universiteit BrusselS. BenZviVrije Universiteit BrusselD. BerleyDepartment of Physics, University of Maryland, College Park, MD 20742, USAE. BernardiniVrije Universiteit BrusselD. Z. BessonVrije Universiteit BrusselG. BinderLawrence Berkeley National Laboratory, Berkeley, CA 94720, USAD. BindigVrije Universiteit BrusselE. BlaufussDepartment of Physics, University of Maryland, College Park, MD 20742, USASummer BlotVrije Universiteit BrusselMatthias BoddenbergIII. Physikalisches Institut, Rheinisch-Westfälische Technische Hochschule Aachen Univer-sity, D-52056 Aachen, GermanyF. BontempoVrije Universiteit BrusselJ. BorowkaIII. Physikalisches Institut, Rheinisch-Westfälische Technische Hochschule Aachen Univer-sity, D-52056 Aachen, GermanyS. BöserVrije Universiteit BrusselO. BotnerVrije Universiteit BrusselJ. BöttcherIII. Physikalisches Institut, Rheinisch-Westfälische Technische Hochschule Aachen Univer-sity, D-52056 Aachen, GermanyE. BourbeauVrije Universiteit BrusselF. BradascioVrije Universiteit BrusselJ. BraunVrije Universiteit BrusselB. BrinsonSchool of Physics and Center for Relativistic Astrophysics, Georgia Institute of Technology, Atlanta, GA 30332, USAS. BronVrije Universiteit BrusselJ. Brostean-KaiserVrije Universiteit BrusselSally-Ann BrowneVrije Universiteit BrusselA. BurgmanVrije Universiteit BrusselR. T. BurleyDepartment of Physics, University of Adelaide, Adelaide, 5005, AustraliaR. S. BusseVrije Universiteit BrusselMichael CampanaVrije Universiteit BrusselErin Carnie-BroncaDepartment of Physics, University of Adelaide, Adelaide, 5005, AustraliaKunal DeoskarSchool of Physics and Center for Relativistic Astrophysics, Georgia Institute of Technology, Atlanta, GA 30332, USAZ. ChenVrije Universiteit BrusselD. ChirkinVrije Universiteit BrusselK. ChoiVrije Universiteit BrusselBrian ClarkVrije Universiteit BrusselK. ClarkVrije Universiteit BrusselL. ClassenVrije Universiteit BrusselAlan ColemanVrije Universiteit BrusselG. H. CollinDepartment of Physics, Massachusetts Institute of Technology, Cambridge, MA 02139, USAJ. M. ConradDepartment of Physics, Massachusetts Institute of Technology, Cambridge, MA 02139, USAPaul CoppinPhysics Department, Vrije Universiteit Brussel, B-1050 Brussels, BelgiumPablo CorreaPhysics Department, Vrije Universiteit Brussel, B-1050 Brussels, BelgiumD. F. CowenVrije Universiteit BrusselR. CrossVrije Universiteit BrusselC. DappenIII. Physikalisches Institut, Rheinisch-Westfälische Technische Hochschule Aachen Univer-sity, D-52056 Aachen, GermanyP. DaveSchool of Physics and Center for Relativistic Astrophysics, Georgia Institute of Technology, Atlanta, GA 30332, USAC. De ClercqPhysics Department, Vrije Universiteit Brussel, B-1050 Brussels, BelgiumJ. J. DeLaunayVrije Universiteit BrusselD. Delgado LópezDepartment of Physics and Laboratory for Particle Physics and Cosmology, Harvard Univer-sity, Cambridge, MA 02138, USAH. DembinskiVrije Universiteit BrusselA. DesaiVrije Universiteit BrusselP. DesiatiVrije Universiteit BrusselK. D. de VriesVrije Universiteit BrusselG. de WasseigeVrije Universiteit BrusselM. de WithInstitut für Physik, Humboldt-Universität zu Berlin, D-12489 Berlin, GermanyT. DeYoungVrije Universiteit BrusselA. DiazDepartment of Physics, Massachusetts Institute of Technology, Cambridge, MA 02139, USAJ. C. Díaz–VélezVrije Universiteit BrusselM. DittmerVrije Universiteit BrusselH. DujmovicVrije Universiteit BrusselM. DunkmanVrije Universiteit BrusselM. A. DuVernoisVrije Universiteit BrusselEmily DvorakVrije Universiteit BrusselT. EhrhardtVrije Universiteit BrusselP. EllerVrije Universiteit BrusselR. EngelVrije Universiteit BrusselH. ErpenbeckIII. Physikalisches Institut, Rheinisch-Westfälische Technische Hochschule Aachen Univer-sity, D-52056 Aachen, GermanyJohn EvansDepartment of Physics, University of Maryland, College Park, MD 20742, USAP. A. EvensonVrije Universiteit BrusselKwok Lung FanDepartment of Physics, University of Maryland, College Park, MD 20742, USAA. R. FazelyDepartment of Physics, Southern University, Baton Rouge, LA 70813, USAA. FedynitchVrije Universiteit BrusselN. FeiglInstitut für Physik, Humboldt-Universität zu Berlin, D-12489 Berlin, GermanyS. FiedlschusterVrije Universiteit BrusselA. T. FienbergVrije Universiteit Brussel
2022en
ABI
Аннотация
A supermassive black hole, obscured by cosmic dust, powers the nearby active galaxy NGC 1068. Neutrinos, which rarely interact with matter, could provide information on the galaxy's active core. We searched for neutrino emission from astrophysical objects using data recorded with the IceCube neutrino detector between 2011 and 2020. The positions of 110 known gamma-ray sources were individually searched for neutrino detections above atmospheric and cosmic backgrounds. We found that NGC 1068 has an excess of [Formula: see text] neutrinos at tera-electron volt energies, with a global significance of 4.2σ, which we interpret as associated with the active galaxy. The flux of high-energy neutrinos that we measured from NGC 1068 is more than an order of magnitude higher than the upper limit on emissions of tera-electron volt gamma rays from this source.
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