Search for point sources of high energy neutrinos with final data from AMANDA-II

• Published in: Physical review. D, Particles, fields, gravitation, and cosmology Particles, fields, gravitation, and cosmology, 2009, Vol.79 (6), p.Article ID: 062001, Article 062001
• Main Authors: Abbasi, R., Ackermann, M., Adams, J., Ahlers, M., Ahrens, J., Andeen, K., Auffenberg, J., Bai, X., Baker, M., Baret, B., Barwick, S. W., Bay, R., Bazo Alba, J. L., Beattie, K., Becka, T., Becker, J. K., Becker, K.-H., Berdermann, J., Berghaus, P., Berley, D., Bernardini, E., Bertrand, D., Besson, D. Z., Blaufuss, E., Boersma, D. J., Bohm, C., Bolmont, J., Böser, S., Botner, O., Braun, J., Breder, D., Burgess, T., Castermans, T., Chirkin, D., Christy, B., Clem, J., Cowen, D. F., D’Agostino, M. V., Danninger, M., Davour, A., Day, C. T., Depaepe, O., De Clercq, C., Demirörs, L., Descamps, F., Desiati, P., de Vries-Uiterweerd, G., DeYoung, T., Diaz-Velez, J. C., Dreyer, J., Dumm, J. P., Duvoort, M. R., Edwards, W. R., Ehrlich, R., Eisch, J., Ellsworth, R. W., Engdegård, O., Euler, S., Evenson, P. A., Fadiran, O., Fazely, A. R., Filimonov, K., Finley, C., Foerster, M. M., Fox, B. D., Franckowiak, A., Franke, R., Gaisser, T. K., Gallagher, J., Ganugapati, R., Gerhardt, L., Gladstone, L., Goldschmidt, A., Goodman, J. A., Gozzini, R., Grant, D., Griesel, T., Groß, A., Grullon, S., Gunasingha, R. M., Gurtner, M., Ha, C., Hallgren, A., Halzen, F., Han, K., Hanson, K., Hardtke, R., Hasegawa, Y., Heise, J., Helbing, K., Hellwig, M., Herquet, P., Hickford, S., Hill, G. C., Hodges, J., Hoffman, K. D., Hoshina, K., Hubert, D., Huelsnitz, W., Hughey, B.
• Format: Article
• Language: English
• Subjects: Astroparticle Physics; Astropartikelfysik; Fysik; NATURAL SCIENCES; NATURVETENSKAP; Physics
• ISSN: 1550-7998; 1550-2368; 1550-2368
• DOI: 10.1103/PhysRevD.79.062001

We present a search for point sources of high energy neutrinos using 3.8 yr of data recorded by AMANDA-II during 2000-2006. After reconstructing muon tracks and applying selection criteria designed to optimally retain neutrino-induced events originating in the northern sky, we arrive at a sample of 6595 candidate events, predominantly from atmospheric neutrinos with primary energy 100 GeV to 8 TeV. Our search of this sample reveals no indications of a neutrino point source. We place the most stringent limits to date on E(-2) neutrino fluxes from points in the northern sky, with an average upper limit of E(2)Phi(nu mu)+nu(tau)<= 5.2x10(-11) TeV cm(-2) s(-1) on the sum of nu(mu) and nu(tau) fluxes, assumed equal, over the energy range from 1.9 TeV to 2.5 PeV.