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Time-Integrated Neutrino Source Searches with 10 Years of IceCube Data.
Aartsen, M G; Ackermann, M; Adams, J; Aguilar, J A; Ahlers, M; Ahrens, M; Alispach, C; Andeen, K; Anderson, T; Ansseau, I; Anton, G; Argüelles, C; Auffenberg, J; Axani, S; Backes, P; Bagherpour, H; Bai, X; Balagopal, A; Barbano, A; Barwick, S W; Bastian, B; Baum, V; Baur, S; Bay, R; Beatty, J J; Becker, K-H; Becker Tjus, J; BenZvi, S; Berley, D; Bernardini, E; Besson, D Z; Binder, G; Bindig, D; Blaufuss, E; Blot, S; Bohm, C; Börner, M; Böser, S; Botner, O; Böttcher, J; Bourbeau, E; Bourbeau, J; Bradascio, F; Braun, J; Bron, S; Brostean-Kaiser, J; Burgman, A; Buscher, J; Busse, R S; Carver, T.
Afiliación
  • Aartsen MG; Department of Physics and Astronomy, University of Canterbury, Private Bag 4800, Christchurch, New Zealand.
  • Ackermann M; DESY, D-15738 Zeuthen, Germany.
  • Adams J; Department of Physics and Astronomy, University of Canterbury, Private Bag 4800, Christchurch, New Zealand.
  • Aguilar JA; Université Libre de Bruxelles, Science Faculty CP230, B-1050 Brussels, Belgium.
  • Ahlers M; Niels Bohr Institute, University of Copenhagen, DK-2100 Copenhagen, Denmark.
  • Ahrens M; Oskar Klein Centre and Department of Physics, Stockholm University, SE-10691 Stockholm, Sweden.
  • Alispach C; Département de physique nucléaire et corpusculaire, Université de Genève, CH-1211 Genève, Switzerland.
  • Andeen K; Department of Physics, Marquette University, Milwaukee, Wisconsin, 53201, USA.
  • Anderson T; Department of Physics, Pennsylvania State University, University Park, Pennsylvania 16802, USA.
  • Ansseau I; Université Libre de Bruxelles, Science Faculty CP230, B-1050 Brussels, Belgium.
  • Anton G; Erlangen Centre for Astroparticle Physics, Friedrich-Alexander-Universität Erlangen-Nürnberg, D-91058 Erlangen, Germany.
  • Argüelles C; Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA.
  • Auffenberg J; III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany.
  • Axani S; Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA.
  • Backes P; III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany.
  • Bagherpour H; Department of Physics and Astronomy, University of Canterbury, Private Bag 4800, Christchurch, New Zealand.
  • Bai X; Physics Department, South Dakota School of Mines and Technology, Rapid City, South Dakota 57701, USA.
  • Balagopal A; Karlsruhe Institute of Technology, Institut für Kernphysik, D-76021 Karlsruhe, Germany.
  • Barbano A; Département de physique nucléaire et corpusculaire, Université de Genève, CH-1211 Genève, Switzerland.
  • Barwick SW; Department of Physics and Astronomy, University of California, Irvine, California 92697, USA.
  • Bastian B; DESY, D-15738 Zeuthen, Germany.
  • Baum V; Institute of Physics, University of Mainz, Staudinger Weg 7, D-55099 Mainz, Germany.
  • Baur S; Université Libre de Bruxelles, Science Faculty CP230, B-1050 Brussels, Belgium.
  • Bay R; Department of Physics, University of California, Berkeley, California 94720, USA.
  • Beatty JJ; Department of Astronomy, Ohio State University, Columbus, Ohio 43210, USA.
  • Becker KH; Department of Physics and Center for Cosmology and Astro-Particle Physics, Ohio State University, Columbus, Ohio 43210, USA.
  • Becker Tjus J; Department of Physics, University of Wuppertal, D-42119 Wuppertal, Germany.
  • BenZvi S; Fakultät für Physik & Astronomie, Ruhr-Universität Bochum, D-44780 Bochum, Germany.
  • Berley D; Department of Physics and Astronomy, University of Rochester, Rochester, New York 14627, USA.
  • Bernardini E; Department of Physics, University of Maryland, College Park, Maryland 20742, USA.
  • Besson DZ; DESY, D-15738 Zeuthen, Germany.
  • Binder G; Department of Physics and Astronomy, University of Kansas, Lawrence, Kansas 66045, USA.
  • Bindig D; Department of Physics, University of California, Berkeley, California 94720, USA.
  • Blaufuss E; Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA.
  • Blot S; Department of Physics, University of Wuppertal, D-42119 Wuppertal, Germany.
  • Bohm C; Department of Physics, University of Maryland, College Park, Maryland 20742, USA.
  • Börner M; DESY, D-15738 Zeuthen, Germany.
  • Böser S; Oskar Klein Centre and Department of Physics, Stockholm University, SE-10691 Stockholm, Sweden.
  • Botner O; Department of Physics, TU Dortmund University, D-44221 Dortmund, Germany.
  • Böttcher J; Institute of Physics, University of Mainz, Staudinger Weg 7, D-55099 Mainz, Germany.
  • Bourbeau E; Department of Physics and Astronomy, Uppsala University, Box 516, S-75120 Uppsala, Sweden.
  • Bourbeau J; III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany.
  • Bradascio F; Niels Bohr Institute, University of Copenhagen, DK-2100 Copenhagen, Denmark.
  • Braun J; Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA.
  • Bron S; DESY, D-15738 Zeuthen, Germany.
  • Brostean-Kaiser J; Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA.
  • Burgman A; Département de physique nucléaire et corpusculaire, Université de Genève, CH-1211 Genève, Switzerland.
  • Buscher J; DESY, D-15738 Zeuthen, Germany.
  • Busse RS; Department of Physics and Astronomy, Uppsala University, Box 516, S-75120 Uppsala, Sweden.
  • Carver T; III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany.
Phys Rev Lett ; 124(5): 051103, 2020 Feb 07.
Article en En | MEDLINE | ID: mdl-32083934
ABSTRACT
This Letter presents the results from pointlike neutrino source searches using ten years of IceCube data collected between April 6, 2008 and July 10, 2018. We evaluate the significance of an astrophysical signal from a pointlike source looking for an excess of clustered neutrino events with energies typically above ∼1 TeV among the background of atmospheric muons and neutrinos. We perform a full-sky scan, a search within a selected source catalog, a catalog population study, and three stacked Galactic catalog searches. The most significant point in the northern hemisphere from scanning the sky is coincident with the Seyfert II galaxy NGC 1068, which was included in the source catalog search. The excess at the coordinates of NGC 1068 is inconsistent with background expectations at the level of 2.9σ after accounting for statistical trials from the entire catalog. The combination of this result along with excesses observed at the coordinates of three other sources, including TXS 0506+056, suggests that, collectively, correlations with sources in the northern catalog are inconsistent with background at 3.3σ significance. The southern catalog is consistent with background. These results, all based on searches for a cumulative neutrino signal integrated over the 10 years of available data, motivate further study of these and similar sources, including time-dependent analyses, multimessenger correlations, and the possibility of stronger evidence with coming upgrades to the detector.
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Texto completo: 1 Colección: 01-internacional Banco de datos: MEDLINE Idioma: En Revista: Phys Rev Lett Año: 2020 Tipo del documento: Article País de afiliación: Nueva Zelanda
Texto completo
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Texto completo: 1 Colección: 01-internacional Banco de datos: MEDLINE Idioma: En Revista: Phys Rev Lett Año: 2020 Tipo del documento: Article País de afiliación: Nueva Zelanda