Five years of searches for point sources of astrophysical neutrinos with the AMANDA-II neutrino telescope

A. Achterberg, M. Ackermann, J. Adams, J. Ahrens, K. Andeen, D. W. Atlee, J. N. Bahcall, X. Bai, B. Baret, S. W. Barwick, R. Bay, K. Beattie, T. Becka, J. K. Becker, K. H. Becker, P. Berghaus, D. Berley, E. Bernardini, D. Bertrand, D. Z. BessonE. Blaufuss, D. J. Boersma, C. Bohm, J. Bolmont, S. Böser, O. Botner, A. Bouchta, J. Braun, C. Burgess, T. Burgess, T. Castermans, D. Chirkin, B. Christy, J. Clem, D. F. Cowen, M. V. D'Agostino, A. Davour, C. T. Day, C. De Clercq, L. Demirörs, F. Descamps, P. Desiati, T. DeYoung, J. C. Diaz-Velez, J. Dreyer, J. P. Dumm, M. R. Duvoort, W. R. Edwards, R. Ehrlich, J. Eisch, R. W. Ellsworth, P. A. Evenson, O. Fadiran, A. R. Fazely, T. Feser, K. Filimonov, B. D. Fox, T. K. Gaisser, J. Gallagher, R. Ganugapati, H. Geenen, L. Gerhardt, A. Goldschmidt, J. A. Goodman, R. Gozzini, S. Grullon, A. Groß, R. M. Gunasingha, M. Gurtner, A. Hallgren, F. Halzen, K. Han, K. Hanson, D. Hardtke, R. Hardtke, T. Harenberg, J. E. Hart, T. Hauschildt, D. Hays, J. Heise, K. Helbing, M. Hellwig, P. Herquet, G. C. Hill, J. Hodges, K. D. Hoffman, B. Hommez, K. Hoshina, D. Hubert, B. Hughey, P. O. Hulth, K. Hultqvist, S. Hundertmark, J. P. Hülß, A. Ishihara, J. Jacobsen, G. S. Japaridze, H. Johansson, A. Jones, J. M. Joseph, K. H. Kampert, A. Karle, H. Kawai, J. L. Kelley, M. Kestel, N. Kitamura, S. R. Klein, S. Klepser, G. Kohnen, H. Kolanoski, M. Kowalski, L. Köpke, M. Krasberg, K. Kuehn, H. Landsman, H. Leich, D. Leier, M. Leuthold, I. Liubarsky, J. Lundberg, J. Lünemann, J. Madsen, K. Mase, H. S. Matis, T. McCauley, C. P. McParland, A. Meli, T. Messarius, P. Mészáros, H. Miyamoto, A. Mokhtarani, T. Montaruli, A. Morey, R. Morse, S. M. Movit, K. Münich, R. Nahnhauer, J. W. Nam, P. Nießen, D. R. Nygren, H. Ögelman, A. Olivas, S. Patton, C. Peña-Garay, C. Pérez De Los Heros, A. Piegsa, D. Pieloth, A. C. Pohl, R. Porrata, J. Pretz, P. B. Price, G. T. Przybylski, K. Rawlins, S. Razzaque, E. Resconi, W. Rhode, M. Ribordy, A. Rizzo, S. Robbins, P. Roth, C. Rott, D. Rutledge, D. Ryckbosch, H. G. Sander, S. Sarkar, S. Schlenstedt, T. Schmidt, D. Schneider, D. Seckel, S. H. Seo, S. Seunarine, A. Silvestri, A. J. Smith, M. Solarz, C. Song, J. E. Sopher, G. M. Spiczak, C. Spiering, M. Stamatikos, T. Stanev, P. Steffen, T. Stezelberger, R. G. Stokstad, M. C. Stoufer, S. Stoyanov, E. A. Strahler, T. Straszheim, K. H. Sulanke, G. W. Sullivan, T. J. Sumner, I. Taboada, O. Tarasova, A. Tepe, L. Thollander, S. Tilav, M. Tluczykont, P. A. Toale, D. Turčan, N. Van Eijndhoven, J. Vandenbroucke, A. Van Overloop, B. Voigt, W. Wagner, C. Walck, H. Waldmann, M. Walter, Y. R. Wang, C. Wendt, C. H. Wiebusch, G. Wikström, D. R. Williams, R. Wischnewski, H. Wissing, K. Woschnagg, X. W. Xu, G. Yodh, S. Yoshida, J. D. Zornoza

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Abstract

We report the results of a five-year survey of the northern sky to search for point sources of high energy neutrinos. The search was performed on the data collected with the AMANDA-II neutrino telescope in the years 2000 to 2004, with a live time of 1001 days. The sample of selected events consists of 4282 upward going muon tracks with high reconstruction quality and an energy larger than about 100 GeV. We found no indication of point sources of neutrinos and set 90% confidence level flux upper limits for an all-sky search and also for a catalog of 32 selected sources. For the all-sky search, our average (over declination and right ascension) experimentally observed upper limit Φ0=(E1TeV) γ•dΦdE to a point source flux of muon and tau neutrino (detected as muons arising from taus) is Φνμ+ν̄μ0+Φντ+ν ̄τ0=11.1×10-11TeV-1cm-2s-1, in the energy range between 1.6 TeV and 2.5 PeV for a flavor ratio Φνμ+ν̄μ0/ Φντ+ν̄τ0=1 and assuming a spectral index γ=2. It should be noticed that this is the first time we set upper limits to the flux of muon and tau neutrinos. In previous papers we provided muon neutrino upper limits only neglecting the sensitivity to a signal from tau neutrinos, which improves the limits by 10% to 16%. The value of the average upper limit presented in this work corresponds to twice the limit on the muon neutrino flux Φνμ+ν̄μ0=5.5×10-11TeV-1cm-2s-1. A stacking analysis for preselected active galactic nuclei and a search based on the angular separation of the events were also performed. We report the most stringent flux upper limits to date, including the results of a detailed assessment of systematic uncertainties.

Original languageEnglish (US)
Article number102001
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume75
Issue number10
DOIs
StatePublished - May 14 2007

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point sources
astrophysics
neutrinos
telescopes
muons
sky
northern sky
declination
active galactic nuclei
catalogs
energy
confidence
indication
sensitivity

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Physics and Astronomy (miscellaneous)

Cite this

Achterberg, A. ; Ackermann, M. ; Adams, J. ; Ahrens, J. ; Andeen, K. ; Atlee, D. W. ; Bahcall, J. N. ; Bai, X. ; Baret, B. ; Barwick, S. W. ; Bay, R. ; Beattie, K. ; Becka, T. ; Becker, J. K. ; Becker, K. H. ; Berghaus, P. ; Berley, D. ; Bernardini, E. ; Bertrand, D. ; Besson, D. Z. ; Blaufuss, E. ; Boersma, D. J. ; Bohm, C. ; Bolmont, J. ; Böser, S. ; Botner, O. ; Bouchta, A. ; Braun, J. ; Burgess, C. ; Burgess, T. ; Castermans, T. ; Chirkin, D. ; Christy, B. ; Clem, J. ; Cowen, D. F. ; D'Agostino, M. V. ; Davour, A. ; Day, C. T. ; De Clercq, C. ; Demirörs, L. ; Descamps, F. ; Desiati, P. ; DeYoung, T. ; Diaz-Velez, J. C. ; Dreyer, J. ; Dumm, J. P. ; Duvoort, M. R. ; Edwards, W. R. ; Ehrlich, R. ; Eisch, J. ; Ellsworth, R. W. ; Evenson, P. A. ; Fadiran, O. ; Fazely, A. R. ; Feser, T. ; Filimonov, K. ; Fox, B. D. ; Gaisser, T. K. ; Gallagher, J. ; Ganugapati, R. ; Geenen, H. ; Gerhardt, L. ; Goldschmidt, A. ; Goodman, J. A. ; Gozzini, R. ; Grullon, S. ; Groß, A. ; Gunasingha, R. M. ; Gurtner, M. ; Hallgren, A. ; Halzen, F. ; Han, K. ; Hanson, K. ; Hardtke, D. ; Hardtke, R. ; Harenberg, T. ; Hart, J. E. ; Hauschildt, T. ; Hays, D. ; Heise, J. ; Helbing, K. ; Hellwig, M. ; Herquet, P. ; Hill, G. C. ; Hodges, J. ; Hoffman, K. D. ; Hommez, B. ; Hoshina, K. ; Hubert, D. ; Hughey, B. ; Hulth, P. O. ; Hultqvist, K. ; Hundertmark, S. ; Hülß, J. P. ; Ishihara, A. ; Jacobsen, J. ; Japaridze, G. S. ; Johansson, H. ; Jones, A. ; Joseph, J. M. ; Kampert, K. H. ; Karle, A. ; Kawai, H. ; Kelley, J. L. ; Kestel, M. ; Kitamura, N. ; Klein, S. R. ; Klepser, S. ; Kohnen, G. ; Kolanoski, H. ; Kowalski, M. ; Köpke, L. ; Krasberg, M. ; Kuehn, K. ; Landsman, H. ; Leich, H. ; Leier, D. ; Leuthold, M. ; Liubarsky, I. ; Lundberg, J. ; Lünemann, J. ; Madsen, J. ; Mase, K. ; Matis, H. S. ; McCauley, T. ; McParland, C. P. ; Meli, A. ; Messarius, T. ; Mészáros, P. ; Miyamoto, H. ; Mokhtarani, A. ; Montaruli, T. ; Morey, A. ; Morse, R. ; Movit, S. M. ; Münich, K. ; Nahnhauer, R. ; Nam, J. W. ; Nießen, P. ; Nygren, D. R. ; Ögelman, H. ; Olivas, A. ; Patton, S. ; Peña-Garay, C. ; Pérez De Los Heros, C. ; Piegsa, A. ; Pieloth, D. ; Pohl, A. C. ; Porrata, R. ; Pretz, J. ; Price, P. B. ; Przybylski, G. T. ; Rawlins, K. ; Razzaque, S. ; Resconi, E. ; Rhode, W. ; Ribordy, M. ; Rizzo, A. ; Robbins, S. ; Roth, P. ; Rott, C. ; Rutledge, D. ; Ryckbosch, D. ; Sander, H. G. ; Sarkar, S. ; Schlenstedt, S. ; Schmidt, T. ; Schneider, D. ; Seckel, D. ; Seo, S. H. ; Seunarine, S. ; Silvestri, A. ; Smith, A. J. ; Solarz, M. ; Song, C. ; Sopher, J. E. ; Spiczak, G. M. ; Spiering, C. ; Stamatikos, M. ; Stanev, T. ; Steffen, P. ; Stezelberger, T. ; Stokstad, R. G. ; Stoufer, M. C. ; Stoyanov, S. ; Strahler, E. A. ; Straszheim, T. ; Sulanke, K. H. ; Sullivan, G. W. ; Sumner, T. J. ; Taboada, I. ; Tarasova, O. ; Tepe, A. ; Thollander, L. ; Tilav, S. ; Tluczykont, M. ; Toale, P. A. ; Turčan, D. ; Van Eijndhoven, N. ; Vandenbroucke, J. ; Van Overloop, A. ; Voigt, B. ; Wagner, W. ; Walck, C. ; Waldmann, H. ; Walter, M. ; Wang, Y. R. ; Wendt, C. ; Wiebusch, C. H. ; Wikström, G. ; Williams, D. R. ; Wischnewski, R. ; Wissing, H. ; Woschnagg, K. ; Xu, X. W. ; Yodh, G. ; Yoshida, S. ; Zornoza, J. D. / Five years of searches for point sources of astrophysical neutrinos with the AMANDA-II neutrino telescope. In: Physical Review D - Particles, Fields, Gravitation and Cosmology. 2007 ; Vol. 75, No. 10.
@article{c8759315ef8c482fa359502c9e448f2b,
title = "Five years of searches for point sources of astrophysical neutrinos with the AMANDA-II neutrino telescope",
abstract = "We report the results of a five-year survey of the northern sky to search for point sources of high energy neutrinos. The search was performed on the data collected with the AMANDA-II neutrino telescope in the years 2000 to 2004, with a live time of 1001 days. The sample of selected events consists of 4282 upward going muon tracks with high reconstruction quality and an energy larger than about 100 GeV. We found no indication of point sources of neutrinos and set 90{\%} confidence level flux upper limits for an all-sky search and also for a catalog of 32 selected sources. For the all-sky search, our average (over declination and right ascension) experimentally observed upper limit Φ0=(E1TeV) γ•dΦdE to a point source flux of muon and tau neutrino (detected as muons arising from taus) is Φνμ+ν̄μ0+Φντ+ν ̄τ0=11.1×10-11TeV-1cm-2s-1, in the energy range between 1.6 TeV and 2.5 PeV for a flavor ratio Φνμ+ν̄μ0/ Φντ+ν̄τ0=1 and assuming a spectral index γ=2. It should be noticed that this is the first time we set upper limits to the flux of muon and tau neutrinos. In previous papers we provided muon neutrino upper limits only neglecting the sensitivity to a signal from tau neutrinos, which improves the limits by 10{\%} to 16{\%}. The value of the average upper limit presented in this work corresponds to twice the limit on the muon neutrino flux Φνμ+ν̄μ0=5.5×10-11TeV-1cm-2s-1. A stacking analysis for preselected active galactic nuclei and a search based on the angular separation of the events were also performed. We report the most stringent flux upper limits to date, including the results of a detailed assessment of systematic uncertainties.",
author = "A. Achterberg and M. Ackermann and J. Adams and J. Ahrens and K. Andeen and Atlee, {D. W.} and Bahcall, {J. N.} and X. Bai and B. Baret and Barwick, {S. W.} and R. Bay and K. Beattie and T. Becka and Becker, {J. K.} and Becker, {K. H.} and P. Berghaus and D. Berley and E. Bernardini and D. Bertrand and Besson, {D. Z.} and E. Blaufuss and Boersma, {D. J.} and C. Bohm and J. Bolmont and S. B{\"o}ser and O. Botner and A. Bouchta and J. Braun and C. Burgess and T. Burgess and T. Castermans and D. Chirkin and B. Christy and J. Clem and Cowen, {D. F.} and D'Agostino, {M. V.} and A. Davour and Day, {C. T.} and {De Clercq}, C. and L. Demir{\"o}rs and F. Descamps and P. Desiati and T. DeYoung and Diaz-Velez, {J. C.} and J. Dreyer and Dumm, {J. P.} and Duvoort, {M. R.} and Edwards, {W. R.} and R. Ehrlich and J. Eisch and Ellsworth, {R. W.} and Evenson, {P. A.} and O. Fadiran and Fazely, {A. R.} and T. Feser and K. Filimonov and Fox, {B. D.} and Gaisser, {T. K.} and J. Gallagher and R. Ganugapati and H. Geenen and L. Gerhardt and A. Goldschmidt and Goodman, {J. A.} and R. Gozzini and S. Grullon and A. Gro{\ss} and Gunasingha, {R. M.} and M. Gurtner and A. Hallgren and F. Halzen and K. Han and K. Hanson and D. Hardtke and R. Hardtke and T. Harenberg and Hart, {J. E.} and T. Hauschildt and D. Hays and J. Heise and K. Helbing and M. Hellwig and P. Herquet and Hill, {G. C.} and J. Hodges and Hoffman, {K. D.} and B. Hommez and K. Hoshina and D. Hubert and B. Hughey and Hulth, {P. O.} and K. Hultqvist and S. Hundertmark and H{\"u}l{\ss}, {J. P.} and A. Ishihara and J. Jacobsen and Japaridze, {G. S.} and H. Johansson and A. Jones and Joseph, {J. M.} and Kampert, {K. H.} and A. Karle and H. Kawai and Kelley, {J. L.} and M. Kestel and N. Kitamura and Klein, {S. R.} and S. Klepser and G. Kohnen and H. Kolanoski and M. Kowalski and L. K{\"o}pke and M. Krasberg and K. Kuehn and H. Landsman and H. Leich and D. Leier and M. Leuthold and I. Liubarsky and J. Lundberg and J. L{\"u}nemann and J. Madsen and K. Mase and Matis, {H. S.} and T. McCauley and McParland, {C. P.} and A. Meli and T. Messarius and P. M{\'e}sz{\'a}ros and H. Miyamoto and A. Mokhtarani and T. Montaruli and A. Morey and R. Morse and Movit, {S. M.} and K. M{\"u}nich and R. Nahnhauer and Nam, {J. W.} and P. Nie{\ss}en and Nygren, {D. R.} and H. {\"O}gelman and A. Olivas and S. Patton and C. Pe{\~n}a-Garay and {P{\'e}rez De Los Heros}, C. and A. Piegsa and D. Pieloth and Pohl, {A. C.} and R. Porrata and J. Pretz and Price, {P. B.} and Przybylski, {G. T.} and K. Rawlins and S. Razzaque and E. Resconi and W. Rhode and M. Ribordy and A. Rizzo and S. Robbins and P. Roth and C. Rott and D. Rutledge and D. Ryckbosch and Sander, {H. G.} and S. Sarkar and S. Schlenstedt and T. Schmidt and D. Schneider and D. Seckel and Seo, {S. H.} and S. Seunarine and A. Silvestri and Smith, {A. J.} and M. Solarz and C. Song and Sopher, {J. E.} and Spiczak, {G. M.} and C. Spiering and M. Stamatikos and T. Stanev and P. Steffen and T. Stezelberger and Stokstad, {R. G.} and Stoufer, {M. C.} and S. Stoyanov and Strahler, {E. A.} and T. Straszheim and Sulanke, {K. H.} and Sullivan, {G. W.} and Sumner, {T. J.} and I. Taboada and O. Tarasova and A. Tepe and L. Thollander and S. Tilav and M. Tluczykont and Toale, {P. A.} and D. Turčan and {Van Eijndhoven}, N. and J. Vandenbroucke and {Van Overloop}, A. and B. Voigt and W. Wagner and C. Walck and H. Waldmann and M. Walter and Wang, {Y. R.} and C. Wendt and Wiebusch, {C. H.} and G. Wikstr{\"o}m and Williams, {D. R.} and R. Wischnewski and H. Wissing and K. Woschnagg and Xu, {X. W.} and G. Yodh and S. Yoshida and Zornoza, {J. D.}",
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month = "5",
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doi = "10.1103/PhysRevD.75.102001",
language = "English (US)",
volume = "75",
journal = "Physical Review D",
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}

Achterberg, A, Ackermann, M, Adams, J, Ahrens, J, Andeen, K, Atlee, DW, Bahcall, JN, Bai, X, Baret, B, Barwick, SW, Bay, R, Beattie, K, Becka, T, Becker, JK, Becker, KH, Berghaus, P, Berley, D, Bernardini, E, Bertrand, D, Besson, DZ, Blaufuss, E, Boersma, DJ, Bohm, C, Bolmont, J, Böser, S, Botner, O, Bouchta, A, Braun, J, Burgess, C, Burgess, T, Castermans, T, Chirkin, D, Christy, B, Clem, J, Cowen, DF, D'Agostino, MV, Davour, A, Day, CT, De Clercq, C, Demirörs, L, Descamps, F, Desiati, P, DeYoung, T, Diaz-Velez, JC, Dreyer, J, Dumm, JP, Duvoort, MR, Edwards, WR, Ehrlich, R, Eisch, J, Ellsworth, RW, Evenson, PA, Fadiran, O, Fazely, AR, Feser, T, Filimonov, K, Fox, BD, Gaisser, TK, Gallagher, J, Ganugapati, R, Geenen, H, Gerhardt, L, Goldschmidt, A, Goodman, JA, Gozzini, R, Grullon, S, Groß, A, Gunasingha, RM, Gurtner, M, Hallgren, A, Halzen, F, Han, K, Hanson, K, Hardtke, D, Hardtke, R, Harenberg, T, Hart, JE, Hauschildt, T, Hays, D, Heise, J, Helbing, K, Hellwig, M, Herquet, P, Hill, GC, Hodges, J, Hoffman, KD, Hommez, B, Hoshina, K, Hubert, D, Hughey, B, Hulth, PO, Hultqvist, K, Hundertmark, S, Hülß, JP, Ishihara, A, Jacobsen, J, Japaridze, GS, Johansson, H, Jones, A, Joseph, JM, Kampert, KH, Karle, A, Kawai, H, Kelley, JL, Kestel, M, Kitamura, N, Klein, SR, Klepser, S, Kohnen, G, Kolanoski, H, Kowalski, M, Köpke, L, Krasberg, M, Kuehn, K, Landsman, H, Leich, H, Leier, D, Leuthold, M, Liubarsky, I, Lundberg, J, Lünemann, J, Madsen, J, Mase, K, Matis, HS, McCauley, T, McParland, CP, Meli, A, Messarius, T, Mészáros, P, Miyamoto, H, Mokhtarani, A, Montaruli, T, Morey, A, Morse, R, Movit, SM, Münich, K, Nahnhauer, R, Nam, JW, Nießen, P, Nygren, DR, Ögelman, H, Olivas, A, Patton, S, Peña-Garay, C, Pérez De Los Heros, C, Piegsa, A, Pieloth, D, Pohl, AC, Porrata, R, Pretz, J, Price, PB, Przybylski, GT, Rawlins, K, Razzaque, S, Resconi, E, Rhode, W, Ribordy, M, Rizzo, A, Robbins, S, Roth, P, Rott, C, Rutledge, D, Ryckbosch, D, Sander, HG, Sarkar, S, Schlenstedt, S, Schmidt, T, Schneider, D, Seckel, D, Seo, SH, Seunarine, S, Silvestri, A, Smith, AJ, Solarz, M, Song, C, Sopher, JE, Spiczak, GM, Spiering, C, Stamatikos, M, Stanev, T, Steffen, P, Stezelberger, T, Stokstad, RG, Stoufer, MC, Stoyanov, S, Strahler, EA, Straszheim, T, Sulanke, KH, Sullivan, GW, Sumner, TJ, Taboada, I, Tarasova, O, Tepe, A, Thollander, L, Tilav, S, Tluczykont, M, Toale, PA, Turčan, D, Van Eijndhoven, N, Vandenbroucke, J, Van Overloop, A, Voigt, B, Wagner, W, Walck, C, Waldmann, H, Walter, M, Wang, YR, Wendt, C, Wiebusch, CH, Wikström, G, Williams, DR, Wischnewski, R, Wissing, H, Woschnagg, K, Xu, XW, Yodh, G, Yoshida, S & Zornoza, JD 2007, 'Five years of searches for point sources of astrophysical neutrinos with the AMANDA-II neutrino telescope', Physical Review D - Particles, Fields, Gravitation and Cosmology, vol. 75, no. 10, 102001. https://doi.org/10.1103/PhysRevD.75.102001

Five years of searches for point sources of astrophysical neutrinos with the AMANDA-II neutrino telescope. / Achterberg, A.; Ackermann, M.; Adams, J.; Ahrens, J.; Andeen, K.; Atlee, D. W.; Bahcall, J. N.; Bai, X.; Baret, B.; Barwick, S. W.; Bay, R.; Beattie, K.; Becka, T.; Becker, J. K.; Becker, K. H.; Berghaus, P.; Berley, D.; Bernardini, E.; Bertrand, D.; Besson, D. Z.; Blaufuss, E.; Boersma, D. J.; Bohm, C.; Bolmont, J.; Böser, S.; Botner, O.; Bouchta, A.; Braun, J.; Burgess, C.; Burgess, T.; Castermans, T.; Chirkin, D.; Christy, B.; Clem, J.; Cowen, D. F.; D'Agostino, M. V.; Davour, A.; Day, C. T.; De Clercq, C.; Demirörs, L.; Descamps, F.; Desiati, P.; DeYoung, T.; Diaz-Velez, J. C.; Dreyer, J.; Dumm, J. P.; Duvoort, M. R.; Edwards, W. R.; Ehrlich, R.; Eisch, J.; Ellsworth, R. W.; Evenson, P. A.; Fadiran, O.; Fazely, A. R.; Feser, T.; Filimonov, K.; Fox, B. D.; Gaisser, T. K.; Gallagher, J.; Ganugapati, R.; Geenen, H.; Gerhardt, L.; Goldschmidt, A.; Goodman, J. A.; Gozzini, R.; Grullon, S.; Groß, A.; Gunasingha, R. M.; Gurtner, M.; Hallgren, A.; Halzen, F.; Han, K.; Hanson, K.; Hardtke, D.; Hardtke, R.; Harenberg, T.; Hart, J. E.; Hauschildt, T.; Hays, D.; Heise, J.; Helbing, K.; Hellwig, M.; Herquet, P.; Hill, G. C.; Hodges, J.; Hoffman, K. D.; Hommez, B.; Hoshina, K.; Hubert, D.; Hughey, B.; Hulth, P. O.; Hultqvist, K.; Hundertmark, S.; Hülß, J. P.; Ishihara, A.; Jacobsen, J.; Japaridze, G. S.; Johansson, H.; Jones, A.; Joseph, J. M.; Kampert, K. H.; Karle, A.; Kawai, H.; Kelley, J. L.; Kestel, M.; Kitamura, N.; Klein, S. R.; Klepser, S.; Kohnen, G.; Kolanoski, H.; Kowalski, M.; Köpke, L.; Krasberg, M.; Kuehn, K.; Landsman, H.; Leich, H.; Leier, D.; Leuthold, M.; Liubarsky, I.; Lundberg, J.; Lünemann, J.; Madsen, J.; Mase, K.; Matis, H. S.; McCauley, T.; McParland, C. P.; Meli, A.; Messarius, T.; Mészáros, P.; Miyamoto, H.; Mokhtarani, A.; Montaruli, T.; Morey, A.; Morse, R.; Movit, S. M.; Münich, K.; Nahnhauer, R.; Nam, J. W.; Nießen, P.; Nygren, D. R.; Ögelman, H.; Olivas, A.; Patton, S.; Peña-Garay, C.; Pérez De Los Heros, C.; Piegsa, A.; Pieloth, D.; Pohl, A. C.; Porrata, R.; Pretz, J.; Price, P. B.; Przybylski, G. T.; Rawlins, K.; Razzaque, S.; Resconi, E.; Rhode, W.; Ribordy, M.; Rizzo, A.; Robbins, S.; Roth, P.; Rott, C.; Rutledge, D.; Ryckbosch, D.; Sander, H. G.; Sarkar, S.; Schlenstedt, S.; Schmidt, T.; Schneider, D.; Seckel, D.; Seo, S. H.; Seunarine, S.; Silvestri, A.; Smith, A. J.; Solarz, M.; Song, C.; Sopher, J. E.; Spiczak, G. M.; Spiering, C.; Stamatikos, M.; Stanev, T.; Steffen, P.; Stezelberger, T.; Stokstad, R. G.; Stoufer, M. C.; Stoyanov, S.; Strahler, E. A.; Straszheim, T.; Sulanke, K. H.; Sullivan, G. W.; Sumner, T. J.; Taboada, I.; Tarasova, O.; Tepe, A.; Thollander, L.; Tilav, S.; Tluczykont, M.; Toale, P. A.; Turčan, D.; Van Eijndhoven, N.; Vandenbroucke, J.; Van Overloop, A.; Voigt, B.; Wagner, W.; Walck, C.; Waldmann, H.; Walter, M.; Wang, Y. R.; Wendt, C.; Wiebusch, C. H.; Wikström, G.; Williams, D. R.; Wischnewski, R.; Wissing, H.; Woschnagg, K.; Xu, X. W.; Yodh, G.; Yoshida, S.; Zornoza, J. D.

In: Physical Review D - Particles, Fields, Gravitation and Cosmology, Vol. 75, No. 10, 102001, 14.05.2007.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Five years of searches for point sources of astrophysical neutrinos with the AMANDA-II neutrino telescope

AU - Achterberg, A.

AU - Ackermann, M.

AU - Adams, J.

AU - Ahrens, J.

AU - Andeen, K.

AU - Atlee, D. W.

AU - Bahcall, J. N.

AU - Bai, X.

AU - Baret, B.

AU - Barwick, S. W.

AU - Bay, R.

AU - Beattie, K.

AU - Becka, T.

AU - Becker, J. K.

AU - Becker, K. H.

AU - Berghaus, P.

AU - Berley, D.

AU - Bernardini, E.

AU - Bertrand, D.

AU - Besson, D. Z.

AU - Blaufuss, E.

AU - Boersma, D. J.

AU - Bohm, C.

AU - Bolmont, J.

AU - Böser, S.

AU - Botner, O.

AU - Bouchta, A.

AU - Braun, J.

AU - Burgess, C.

AU - Burgess, T.

AU - Castermans, T.

AU - Chirkin, D.

AU - Christy, B.

AU - Clem, J.

AU - Cowen, D. F.

AU - D'Agostino, M. V.

AU - Davour, A.

AU - Day, C. T.

AU - De Clercq, C.

AU - Demirörs, L.

AU - Descamps, F.

AU - Desiati, P.

AU - DeYoung, T.

AU - Diaz-Velez, J. C.

AU - Dreyer, J.

AU - Dumm, J. P.

AU - Duvoort, M. R.

AU - Edwards, W. R.

AU - Ehrlich, R.

AU - Eisch, J.

AU - Ellsworth, R. W.

AU - Evenson, P. A.

AU - Fadiran, O.

AU - Fazely, A. R.

AU - Feser, T.

AU - Filimonov, K.

AU - Fox, B. D.

AU - Gaisser, T. K.

AU - Gallagher, J.

AU - Ganugapati, R.

AU - Geenen, H.

AU - Gerhardt, L.

AU - Goldschmidt, A.

AU - Goodman, J. A.

AU - Gozzini, R.

AU - Grullon, S.

AU - Groß, A.

AU - Gunasingha, R. M.

AU - Gurtner, M.

AU - Hallgren, A.

AU - Halzen, F.

AU - Han, K.

AU - Hanson, K.

AU - Hardtke, D.

AU - Hardtke, R.

AU - Harenberg, T.

AU - Hart, J. E.

AU - Hauschildt, T.

AU - Hays, D.

AU - Heise, J.

AU - Helbing, K.

AU - Hellwig, M.

AU - Herquet, P.

AU - Hill, G. C.

AU - Hodges, J.

AU - Hoffman, K. D.

AU - Hommez, B.

AU - Hoshina, K.

AU - Hubert, D.

AU - Hughey, B.

AU - Hulth, P. O.

AU - Hultqvist, K.

AU - Hundertmark, S.

AU - Hülß, J. P.

AU - Ishihara, A.

AU - Jacobsen, J.

AU - Japaridze, G. S.

AU - Johansson, H.

AU - Jones, A.

AU - Joseph, J. M.

AU - Kampert, K. H.

AU - Karle, A.

AU - Kawai, H.

AU - Kelley, J. L.

AU - Kestel, M.

AU - Kitamura, N.

AU - Klein, S. R.

AU - Klepser, S.

AU - Kohnen, G.

AU - Kolanoski, H.

AU - Kowalski, M.

AU - Köpke, L.

AU - Krasberg, M.

AU - Kuehn, K.

AU - Landsman, H.

AU - Leich, H.

AU - Leier, D.

AU - Leuthold, M.

AU - Liubarsky, I.

AU - Lundberg, J.

AU - Lünemann, J.

AU - Madsen, J.

AU - Mase, K.

AU - Matis, H. S.

AU - McCauley, T.

AU - McParland, C. P.

AU - Meli, A.

AU - Messarius, T.

AU - Mészáros, P.

AU - Miyamoto, H.

AU - Mokhtarani, A.

AU - Montaruli, T.

AU - Morey, A.

AU - Morse, R.

AU - Movit, S. M.

AU - Münich, K.

AU - Nahnhauer, R.

AU - Nam, J. W.

AU - Nießen, P.

AU - Nygren, D. R.

AU - Ögelman, H.

AU - Olivas, A.

AU - Patton, S.

AU - Peña-Garay, C.

AU - Pérez De Los Heros, C.

AU - Piegsa, A.

AU - Pieloth, D.

AU - Pohl, A. C.

AU - Porrata, R.

AU - Pretz, J.

AU - Price, P. B.

AU - Przybylski, G. T.

AU - Rawlins, K.

AU - Razzaque, S.

AU - Resconi, E.

AU - Rhode, W.

AU - Ribordy, M.

AU - Rizzo, A.

AU - Robbins, S.

AU - Roth, P.

AU - Rott, C.

AU - Rutledge, D.

AU - Ryckbosch, D.

AU - Sander, H. G.

AU - Sarkar, S.

AU - Schlenstedt, S.

AU - Schmidt, T.

AU - Schneider, D.

AU - Seckel, D.

AU - Seo, S. H.

AU - Seunarine, S.

AU - Silvestri, A.

AU - Smith, A. J.

AU - Solarz, M.

AU - Song, C.

AU - Sopher, J. E.

AU - Spiczak, G. M.

AU - Spiering, C.

AU - Stamatikos, M.

AU - Stanev, T.

AU - Steffen, P.

AU - Stezelberger, T.

AU - Stokstad, R. G.

AU - Stoufer, M. C.

AU - Stoyanov, S.

AU - Strahler, E. A.

AU - Straszheim, T.

AU - Sulanke, K. H.

AU - Sullivan, G. W.

AU - Sumner, T. J.

AU - Taboada, I.

AU - Tarasova, O.

AU - Tepe, A.

AU - Thollander, L.

AU - Tilav, S.

AU - Tluczykont, M.

AU - Toale, P. A.

AU - Turčan, D.

AU - Van Eijndhoven, N.

AU - Vandenbroucke, J.

AU - Van Overloop, A.

AU - Voigt, B.

AU - Wagner, W.

AU - Walck, C.

AU - Waldmann, H.

AU - Walter, M.

AU - Wang, Y. R.

AU - Wendt, C.

AU - Wiebusch, C. H.

AU - Wikström, G.

AU - Williams, D. R.

AU - Wischnewski, R.

AU - Wissing, H.

AU - Woschnagg, K.

AU - Xu, X. W.

AU - Yodh, G.

AU - Yoshida, S.

AU - Zornoza, J. D.

PY - 2007/5/14

Y1 - 2007/5/14

N2 - We report the results of a five-year survey of the northern sky to search for point sources of high energy neutrinos. The search was performed on the data collected with the AMANDA-II neutrino telescope in the years 2000 to 2004, with a live time of 1001 days. The sample of selected events consists of 4282 upward going muon tracks with high reconstruction quality and an energy larger than about 100 GeV. We found no indication of point sources of neutrinos and set 90% confidence level flux upper limits for an all-sky search and also for a catalog of 32 selected sources. For the all-sky search, our average (over declination and right ascension) experimentally observed upper limit Φ0=(E1TeV) γ•dΦdE to a point source flux of muon and tau neutrino (detected as muons arising from taus) is Φνμ+ν̄μ0+Φντ+ν ̄τ0=11.1×10-11TeV-1cm-2s-1, in the energy range between 1.6 TeV and 2.5 PeV for a flavor ratio Φνμ+ν̄μ0/ Φντ+ν̄τ0=1 and assuming a spectral index γ=2. It should be noticed that this is the first time we set upper limits to the flux of muon and tau neutrinos. In previous papers we provided muon neutrino upper limits only neglecting the sensitivity to a signal from tau neutrinos, which improves the limits by 10% to 16%. The value of the average upper limit presented in this work corresponds to twice the limit on the muon neutrino flux Φνμ+ν̄μ0=5.5×10-11TeV-1cm-2s-1. A stacking analysis for preselected active galactic nuclei and a search based on the angular separation of the events were also performed. We report the most stringent flux upper limits to date, including the results of a detailed assessment of systematic uncertainties.

AB - We report the results of a five-year survey of the northern sky to search for point sources of high energy neutrinos. The search was performed on the data collected with the AMANDA-II neutrino telescope in the years 2000 to 2004, with a live time of 1001 days. The sample of selected events consists of 4282 upward going muon tracks with high reconstruction quality and an energy larger than about 100 GeV. We found no indication of point sources of neutrinos and set 90% confidence level flux upper limits for an all-sky search and also for a catalog of 32 selected sources. For the all-sky search, our average (over declination and right ascension) experimentally observed upper limit Φ0=(E1TeV) γ•dΦdE to a point source flux of muon and tau neutrino (detected as muons arising from taus) is Φνμ+ν̄μ0+Φντ+ν ̄τ0=11.1×10-11TeV-1cm-2s-1, in the energy range between 1.6 TeV and 2.5 PeV for a flavor ratio Φνμ+ν̄μ0/ Φντ+ν̄τ0=1 and assuming a spectral index γ=2. It should be noticed that this is the first time we set upper limits to the flux of muon and tau neutrinos. In previous papers we provided muon neutrino upper limits only neglecting the sensitivity to a signal from tau neutrinos, which improves the limits by 10% to 16%. The value of the average upper limit presented in this work corresponds to twice the limit on the muon neutrino flux Φνμ+ν̄μ0=5.5×10-11TeV-1cm-2s-1. A stacking analysis for preselected active galactic nuclei and a search based on the angular separation of the events were also performed. We report the most stringent flux upper limits to date, including the results of a detailed assessment of systematic uncertainties.

UR - http://www.scopus.com/inward/record.url?scp=34347373121&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=34347373121&partnerID=8YFLogxK

U2 - 10.1103/PhysRevD.75.102001

DO - 10.1103/PhysRevD.75.102001

M3 - Article

AN - SCOPUS:34347373121

VL - 75

JO - Physical Review D

JF - Physical Review D

SN - 0556-2821

IS - 10

M1 - 102001

ER -