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Search for Extraterrestrial Point Sources of Neutrinos with AMANDA-II

2004; American Physical Society; Volume: 92; Issue: 7 Linguagem: Inglês

10.1103/physrevlett.92.071102

1092-0145

J. Ahrens, X. Bai, S. W. Barwick, T. Becka, J. K. Becker, E. Bernardini, Daniel Bertrand, F. Binon, A. Biron, D. J. Boersma, S. Böser, O. Botner, A. Bouchta, O. Bouhali, T. Burgess, S. Carius, T. Castermans, A. Chen, D. Chirkin, Bertrand Collin, J. M. Conrad, J. Cooley, D. F. Cowen, Anna Davour, C. De Clercq, T. DeYoung, P. Desiati, J.‐P. Dewulf, P. Ekström, T. Feser, T. K. Gaisser, R. Ganugapati, M. Gaug, H. Geenen, L. Gerhardt, A. Goldschmidt, A. Groß, A. Hallgren, F. Halzen, K. Hanson, R. Hardtke, T. Harenberg, T. Hauschildt, K. Helbing, M. Hellwig, P. Herquet, G. C. Hill, Daan Hubert, B. Hughey, P. O. Hulth, K. Hultqvist, S. Hundertmark, J. Jacobsen, A. Karle, M. Kestel, L. Köpke, M. Kowalski, K. Kuehn, J.I. Lamoureux, H. Leich, M. Leuthold, P. Lindahl, I. Liubarsky, J. Madsen, Kyle T. Mandli, P. Marciniewski, H. S. Matis, C. McParland, T. Messarius, Y. Minaeva, P. Miočinović, R. Morse, K. Münich, R. Nahnhauer, T. Neunhöffer, P. Nießen, D. R. Nygren, H. Öğelman, Ph. Olbrechts, C. Pérez de los Heros, A. C. Pohl, R. Porrata, P. B. Price, G. T. Przybylski, K. Rawlins, E. Resconi, W. Rhode, M. Ribordy, S. Richter, J. Rodrı́guez Martino, H.‐G. Sander, K. Schinarakis, S. Schlenstedt, T. Schmidt, A. Schneider, R. Schwarz, A. Silvestri, M. Solarz, G. M. Spiczak, Christian Spiering, M. Stamatikos, D. Steele, P. Steffen, R. G. Stokstad, K.-H. Sulanke, I. Taboada, L. Thollander, S. Tilav, W. Wagner, C. Walck, Y. R. Wang, C. H. Wiebusch, C. Wiedemann, R. Wischnewski, H. Wissing, K. Woschnagg, G. Yodh,

Dark Matter and Cosmic Phenomena

We present the results of a search for point sources of high-energy neutrinos in the northern hemisphere using AMANDA-II data collected in the year 2000. Included are flux limits on several active-galactic-nuclei blazars, microquasars, magnetars, and other candidate neutrino sources. A search for excesses above a random background of cosmic-ray-induced atmospheric neutrinos and misreconstructed downgoing cosmic-ray muons reveals no statistically significant neutrino point sources. We show that AMANDA-II has achieved the sensitivity required to probe known TeV gamma-ray sources such as the blazar Markarian 501 in its 1997 flaring state at a level where neutrino and gamma-ray fluxes are equal.