Extending the search for neutrino point sources with iceCube above the horizon

R. Abbasi, Y. Abdou, T. Abu-Zayyad, J. Adams, J. A. Aguilar, M. Ahlers, K. Andeen, J. Auffenberg, X. Bai, M. Baker, S. W. Barwick, R. Bay, J. L.Bazo Alba, K. Beattie, J. J. Beatty, S. Bechet, J. K. Becker, K. H. Becker, Mohamed Lotfi Benabderrhmane, J. BerdermannP. Berghaus, D. Berley, E. Bernardini, D. Bertrand, D. Z. Besson, M. Bissok, E. Blaufuss, D. J. Boersma, C. Bohm, O. Botner, L. Bradley, J. Braun, D. Breder, M. Carson, T. Castermans, D. Chirkin, B. Christy, J. Clem, S. Cohen, D. F. Cowen, M. V. D'Agostino, M. Danninger, C. T. Day, C. De Clercq, L. Demirörs, O. Depaepe, F. Descamps, P. Desiati, G. De Vries-Uiterweerd, T. Deyoung, J. C. Díaz-Vélez, J. Dreyer, J. P. Dumm, M. R. Duvoort, W. R. Edwards, R. Ehrlich, J. Eisch, R. W. Ellsworth, O. Engdegård, S. Euler, P. A. Evenson, O. Fadiran, A. R. Fazely, T. Feusels, K. Filimonov, C. Finley, M. M. Foerster, B. D. Fox, A. Franckowiak, R. Franke, T. K. Gaisser, J. Gallagher, R. Ganugapati, L. Gerhardt, L. Gladstone, A. Goldschmidt, J. A. Goodman, R. Gozzini, D. Grant, T. Griesel, A. Groß, S. Grullon, R. M. Gunasingha, M. Gurtner, C. Ha, A. Hallgren, F. Halzen, K. Han, K. Hanson, Y. Hasegawa, K. Helbing, P. Herquet, S. Hickford, G. C. Hill, K. D. Hoffman, A. Homeier, K. Hoshina, D. Hubert, W. Huelsnitz, J. P. Hülß, P. O. Hulth, K. Hultqvist, S. Hussain, R. L. Imlay, M. Inaba, A. Ishihara, J. Jacobsen, G. S. Japaridze, H. Johansson, J. M. Joseph, K. H. Kampert, A. Kappes, T. Karg, A. Karle, J. L. Kelley, N. Kemming, P. Kenny, J. Kiryluk, F. Kislat, S. R. Klein, S. Knops, G. Kohnen, H. Kolanoski, L. Köpke, D. J. Koskinen, M. Kowalski, T. Kowarik, M. Krasberg, T. Krings, G. Kroll, K. Kuehn, T. Kuwabara, M. Labare, S. Lafebre, K. Laihem, H. Landsman, R. Lauer, R. Lehmann, D. Lennarz, J. Lundberg, J. Lünemann, J. Madsen, P. Majumdar, R. Maruyama, K. Mase, H. S. Matis, C. P. McParland, K. Meagher, M. Merck, P. Mészáros, T. Meures, E. Middell, N. Milke, H. Miyamoto, T. Montaruli, R. Morse, S. M. Movit, R. Nahnhauer, J. W. Nam, P. Nießen, D. R. Nygren, S. Odrowski, A. Olivas, M. Olivo, M. Ono, S. Panknin, S. Patton, L. Paul, C. Pérez De Los Heros, J. Petrovic, A. Piegsa, D. Pieloth, A. C. Pohl, R. Porrata, N. Potthoff, P. B. Price, M. Prikockis, G. T. Przybylski, K. Rawlins, P. Redl, E. Resconi, W. Rhode, M. Ribordy, A. Rizzo, J. P. Rodrigues, P. Roth, F. Rothmaier, C. Rott, C. Roucelle, D. Rutledge, B. Ruzybayev, D. Ryckbosch, H. G. Sander, S. Sarkar, K. Schatto, S. Schlenstedt, T. Schmidt, D. Schneider, A. Schukraft, O. Schulz, M. Schunck, D. Seckel, B. Semburg, S. H. Seo, Y. Sestayo, S. Seunarine, A. Silvestri, A. Slipak, G. M. Spiczak, C. Spiering, M. Stamatikos, T. Stanev, G. Stephens, T. Stezelberger, R. G. Stokstad, M. C. Stoufer, S. Stoyanov, E. A. Strahler, T. Straszheim, G. W. Sullivan, Q. Swillens, I. Taboada, A. Tamburro, O. Tarasova, A. Tepe, S. Ter-Antonyan, C. Terranova, S. Tilav, P. A. Toale, J. Tooker, D. Tosi, D. Turčan, N. Van Eijndhoven, J. Vandenbroucke, A. Van Overloop, J. Van Santen, B. Voigt, C. Walck, T. Waldenmaier, M. Wallraff, M. Walter, C. Wendt, S. Westerhoff, N. Whitehorn, K. Wiebe, C. H. Wiebusch, A. Wiedemann, G. Wikström, D. R. Williams, R. Wischnewski, H. Wissing, K. Woschnagg, C. Xu, X. W. Xu, G. Yodh, S. Yoshida

Research output: Contribution to journalArticle

Abstract

Point source searches with the IceCube neutrino telescope have been restricted to one hemisphere, due to the exclusive selection of upward going events as a way of rejecting the atmospheric muon background. We show that the region above the horizon can be included by suppressing the background through energy-sensitive cuts. This improves the sensitivity above PeV energies, previously not accessible for declinations of more than a few degrees below the horizon due to the absorption of neutrinos in Earth. We present results based on data collected with 22 strings of IceCube, extending its field of view and energy reach for point source searches. No significant excess above the atmospheric background is observed in a sky scan and in tests of source candidates. Upper limits are reported, which for the first time cover point sources in the southern sky up to EeV energies.

Original languageEnglish (US)
Article number221102
JournalPhysical Review Letters
Volume103
Issue number22
DOIs
StatePublished - Nov 24 2009

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point sources
horizon
neutrinos
Southern sky
declination
energy
hemispheres
field of view
sky
muons
strings
telescopes
sensitivity

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Abbasi, R., Abdou, Y., Abu-Zayyad, T., Adams, J., Aguilar, J. A., Ahlers, M., ... Yoshida, S. (2009). Extending the search for neutrino point sources with iceCube above the horizon. Physical Review Letters, 103(22), [221102]. https://doi.org/10.1103/PhysRevLett.103.221102

Extending the search for neutrino point sources with iceCube above the horizon. / Abbasi, R.; Abdou, Y.; Abu-Zayyad, T.; Adams, J.; Aguilar, J. A.; Ahlers, M.; Andeen, K.; Auffenberg, J.; Bai, X.; Baker, M.; Barwick, S. W.; Bay, R.; Alba, J. L.Bazo; Beattie, K.; Beatty, J. J.; Bechet, S.; Becker, J. K.; Becker, K. H.; Lotfi Benabderrhmane, Mohamed; Berdermann, J.; Berghaus, P.; Berley, D.; Bernardini, E.; Bertrand, D.; Besson, D. Z.; Bissok, M.; Blaufuss, E.; Boersma, D. J.; Bohm, C.; Botner, O.; Bradley, L.; Braun, J.; Breder, D.; Carson, M.; Castermans, T.; Chirkin, D.; Christy, B.; Clem, J.; Cohen, S.; Cowen, D. F.; D'Agostino, M. V.; Danninger, M.; Day, C. T.; De Clercq, C.; Demirörs, L.; Depaepe, O.; Descamps, F.; Desiati, P.; De Vries-Uiterweerd, G.; Deyoung, T.; Díaz-Vélez, 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.; Feusels, T.; 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.; Hasegawa, Y.; Helbing, K.; Herquet, P.; Hickford, S.; Hill, G. C.; Hoffman, K. D.; Homeier, A.; Hoshina, K.; Hubert, D.; Huelsnitz, W.; Hülß, J. P.; Hulth, P. O.; Hultqvist, K.; Hussain, S.; Imlay, R. L.; Inaba, M.; Ishihara, A.; Jacobsen, J.; Japaridze, G. S.; Johansson, H.; Joseph, J. M.; Kampert, K. H.; Kappes, A.; Karg, T.; Karle, A.; Kelley, J. L.; Kemming, N.; Kenny, P.; Kiryluk, J.; Kislat, F.; Klein, S. R.; Knops, S.; Kohnen, G.; Kolanoski, H.; Köpke, L.; Koskinen, D. J.; Kowalski, M.; Kowarik, T.; Krasberg, M.; Krings, T.; Kroll, G.; Kuehn, K.; Kuwabara, T.; Labare, M.; Lafebre, S.; Laihem, K.; Landsman, H.; Lauer, R.; Lehmann, R.; Lennarz, D.; Lundberg, J.; Lünemann, J.; Madsen, J.; Majumdar, P.; Maruyama, R.; Mase, K.; Matis, H. S.; McParland, C. P.; Meagher, K.; Merck, M.; Mészáros, P.; Meures, T.; Middell, E.; Milke, N.; Miyamoto, H.; Montaruli, T.; Morse, R.; Movit, S. M.; Nahnhauer, R.; Nam, J. W.; Nießen, P.; Nygren, D. R.; Odrowski, S.; Olivas, A.; Olivo, M.; Ono, M.; Panknin, S.; Patton, S.; Paul, L.; De Los Heros, C. Pérez; Petrovic, J.; Piegsa, A.; Pieloth, D.; Pohl, A. C.; Porrata, R.; Potthoff, N.; Price, P. B.; Prikockis, M.; Przybylski, G. T.; Rawlins, K.; Redl, P.; Resconi, E.; Rhode, W.; Ribordy, M.; Rizzo, A.; Rodrigues, J. P.; Roth, P.; Rothmaier, F.; Rott, C.; Roucelle, C.; Rutledge, D.; Ruzybayev, B.; Ryckbosch, D.; Sander, H. G.; Sarkar, S.; Schatto, K.; Schlenstedt, S.; Schmidt, T.; Schneider, D.; Schukraft, A.; Schulz, O.; Schunck, M.; Seckel, D.; Semburg, B.; Seo, S. H.; Sestayo, Y.; Seunarine, S.; Silvestri, A.; Slipak, A.; Spiczak, G. M.; Spiering, C.; Stamatikos, M.; Stanev, T.; Stephens, G.; Stezelberger, T.; Stokstad, R. G.; Stoufer, M. C.; Stoyanov, S.; Strahler, E. A.; Straszheim, T.; Sullivan, G. W.; Swillens, Q.; Taboada, I.; Tamburro, A.; Tarasova, O.; Tepe, A.; Ter-Antonyan, S.; Terranova, C.; Tilav, S.; Toale, P. A.; Tooker, J.; Tosi, D.; Turčan, D.; Van Eijndhoven, N.; Vandenbroucke, J.; Van Overloop, A.; Van Santen, J.; Voigt, B.; Walck, C.; Waldenmaier, T.; Wallraff, M.; Walter, M.; Wendt, C.; Westerhoff, S.; Whitehorn, N.; Wiebe, K.; Wiebusch, C. H.; Wiedemann, A.; Wikström, G.; Williams, D. R.; Wischnewski, R.; Wissing, H.; Woschnagg, K.; Xu, C.; Xu, X. W.; Yodh, G.; Yoshida, S.

In: Physical Review Letters, Vol. 103, No. 22, 221102, 24.11.2009.

Research output: Contribution to journalArticle

Abbasi, R, Abdou, Y, Abu-Zayyad, T, Adams, J, Aguilar, JA, Ahlers, M, Andeen, K, Auffenberg, J, Bai, X, Baker, M, Barwick, SW, Bay, R, Alba, JLB, Beattie, K, Beatty, JJ, Bechet, S, Becker, JK, Becker, KH, Lotfi Benabderrhmane, M, Berdermann, J, Berghaus, P, Berley, D, Bernardini, E, Bertrand, D, Besson, DZ, Bissok, M, Blaufuss, E, Boersma, DJ, Bohm, C, Botner, O, Bradley, L, Braun, J, Breder, D, Carson, M, Castermans, T, Chirkin, D, Christy, B, Clem, J, Cohen, S, Cowen, DF, D'Agostino, MV, Danninger, M, Day, CT, De Clercq, C, Demirörs, L, Depaepe, O, Descamps, F, Desiati, P, De Vries-Uiterweerd, G, Deyoung, T, Díaz-Vélez, JC, Dreyer, J, Dumm, JP, Duvoort, MR, Edwards, WR, Ehrlich, R, Eisch, J, Ellsworth, RW, Engdegård, O, Euler, S, Evenson, PA, Fadiran, O, Fazely, AR, Feusels, T, Filimonov, K, Finley, C, Foerster, MM, Fox, BD, Franckowiak, A, Franke, R, Gaisser, TK, Gallagher, J, Ganugapati, R, Gerhardt, L, Gladstone, L, Goldschmidt, A, Goodman, JA, Gozzini, R, Grant, D, Griesel, T, Groß, A, Grullon, S, Gunasingha, RM, Gurtner, M, Ha, C, Hallgren, A, Halzen, F, Han, K, Hanson, K, Hasegawa, Y, Helbing, K, Herquet, P, Hickford, S, Hill, GC, Hoffman, KD, Homeier, A, Hoshina, K, Hubert, D, Huelsnitz, W, Hülß, JP, Hulth, PO, Hultqvist, K, Hussain, S, Imlay, RL, Inaba, M, Ishihara, A, Jacobsen, J, Japaridze, GS, Johansson, H, Joseph, JM, Kampert, KH, Kappes, A, Karg, T, Karle, A, Kelley, JL, Kemming, N, Kenny, P, Kiryluk, J, Kislat, F, Klein, SR, Knops, S, Kohnen, G, Kolanoski, H, Köpke, L, Koskinen, DJ, Kowalski, M, Kowarik, T, Krasberg, M, Krings, T, Kroll, G, Kuehn, K, Kuwabara, T, Labare, M, Lafebre, S, Laihem, K, Landsman, H, Lauer, R, Lehmann, R, Lennarz, D, Lundberg, J, Lünemann, J, Madsen, J, Majumdar, P, Maruyama, R, Mase, K, Matis, HS, McParland, CP, Meagher, K, Merck, M, Mészáros, P, Meures, T, Middell, E, Milke, N, Miyamoto, H, Montaruli, T, Morse, R, Movit, SM, Nahnhauer, R, Nam, JW, Nießen, P, Nygren, DR, Odrowski, S, Olivas, A, Olivo, M, Ono, M, Panknin, S, Patton, S, Paul, L, De Los Heros, CP, Petrovic, J, Piegsa, A, Pieloth, D, Pohl, AC, Porrata, R, Potthoff, N, Price, PB, Prikockis, M, Przybylski, GT, Rawlins, K, Redl, P, Resconi, E, Rhode, W, Ribordy, M, Rizzo, A, Rodrigues, JP, Roth, P, Rothmaier, F, Rott, C, Roucelle, C, Rutledge, D, Ruzybayev, B, Ryckbosch, D, Sander, HG, Sarkar, S, Schatto, K, Schlenstedt, S, Schmidt, T, Schneider, D, Schukraft, A, Schulz, O, Schunck, M, Seckel, D, Semburg, B, Seo, SH, Sestayo, Y, Seunarine, S, Silvestri, A, Slipak, A, Spiczak, GM, Spiering, C, Stamatikos, M, Stanev, T, Stephens, G, Stezelberger, T, Stokstad, RG, Stoufer, MC, Stoyanov, S, Strahler, EA, Straszheim, T, Sullivan, GW, Swillens, Q, Taboada, I, Tamburro, A, Tarasova, O, Tepe, A, Ter-Antonyan, S, Terranova, C, Tilav, S, Toale, PA, Tooker, J, Tosi, D, Turčan, D, Van Eijndhoven, N, Vandenbroucke, J, Van Overloop, A, Van Santen, J, Voigt, B, Walck, C, Waldenmaier, T, Wallraff, M, Walter, M, Wendt, C, Westerhoff, S, Whitehorn, N, Wiebe, K, Wiebusch, CH, Wiedemann, A, Wikström, G, Williams, DR, Wischnewski, R, Wissing, H, Woschnagg, K, Xu, C, Xu, XW, Yodh, G & Yoshida, S 2009, 'Extending the search for neutrino point sources with iceCube above the horizon', Physical Review Letters, vol. 103, no. 22, 221102. https://doi.org/10.1103/PhysRevLett.103.221102
Abbasi R, Abdou Y, Abu-Zayyad T, Adams J, Aguilar JA, Ahlers M et al. Extending the search for neutrino point sources with iceCube above the horizon. Physical Review Letters. 2009 Nov 24;103(22). 221102. https://doi.org/10.1103/PhysRevLett.103.221102
Abbasi, R. ; Abdou, Y. ; Abu-Zayyad, T. ; Adams, J. ; Aguilar, J. A. ; Ahlers, M. ; Andeen, K. ; Auffenberg, J. ; Bai, X. ; Baker, M. ; Barwick, S. W. ; Bay, R. ; Alba, J. L.Bazo ; Beattie, K. ; Beatty, J. J. ; Bechet, S. ; Becker, J. K. ; Becker, K. H. ; Lotfi Benabderrhmane, Mohamed ; Berdermann, J. ; Berghaus, P. ; Berley, D. ; Bernardini, E. ; Bertrand, D. ; Besson, D. Z. ; Bissok, M. ; Blaufuss, E. ; Boersma, D. J. ; Bohm, C. ; Botner, O. ; Bradley, L. ; Braun, J. ; Breder, D. ; Carson, M. ; Castermans, T. ; Chirkin, D. ; Christy, B. ; Clem, J. ; Cohen, S. ; Cowen, D. F. ; D'Agostino, M. V. ; Danninger, M. ; Day, C. T. ; De Clercq, C. ; Demirörs, L. ; Depaepe, O. ; Descamps, F. ; Desiati, P. ; De Vries-Uiterweerd, G. ; Deyoung, T. ; Díaz-Vélez, 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. ; Feusels, T. ; 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. ; Hasegawa, Y. ; Helbing, K. ; Herquet, P. ; Hickford, S. ; Hill, G. C. ; Hoffman, K. D. ; Homeier, A. ; Hoshina, K. ; Hubert, D. ; Huelsnitz, W. ; Hülß, J. P. ; Hulth, P. O. ; Hultqvist, K. ; Hussain, S. ; Imlay, R. L. ; Inaba, M. ; Ishihara, A. ; Jacobsen, J. ; Japaridze, G. S. ; Johansson, H. ; Joseph, J. M. ; Kampert, K. H. ; Kappes, A. ; Karg, T. ; Karle, A. ; Kelley, J. L. ; Kemming, N. ; Kenny, P. ; Kiryluk, J. ; Kislat, F. ; Klein, S. R. ; Knops, S. ; Kohnen, G. ; Kolanoski, H. ; Köpke, L. ; Koskinen, D. J. ; Kowalski, M. ; Kowarik, T. ; Krasberg, M. ; Krings, T. ; Kroll, G. ; Kuehn, K. ; Kuwabara, T. ; Labare, M. ; Lafebre, S. ; Laihem, K. ; Landsman, H. ; Lauer, R. ; Lehmann, R. ; Lennarz, D. ; Lundberg, J. ; Lünemann, J. ; Madsen, J. ; Majumdar, P. ; Maruyama, R. ; Mase, K. ; Matis, H. S. ; McParland, C. P. ; Meagher, K. ; Merck, M. ; Mészáros, P. ; Meures, T. ; Middell, E. ; Milke, N. ; Miyamoto, H. ; Montaruli, T. ; Morse, R. ; Movit, S. M. ; Nahnhauer, R. ; Nam, J. W. ; Nießen, P. ; Nygren, D. R. ; Odrowski, S. ; Olivas, A. ; Olivo, M. ; Ono, M. ; Panknin, S. ; Patton, S. ; Paul, L. ; De Los Heros, C. Pérez ; Petrovic, J. ; Piegsa, A. ; Pieloth, D. ; Pohl, A. C. ; Porrata, R. ; Potthoff, N. ; Price, P. B. ; Prikockis, M. ; Przybylski, G. T. ; Rawlins, K. ; Redl, P. ; Resconi, E. ; Rhode, W. ; Ribordy, M. ; Rizzo, A. ; Rodrigues, J. P. ; Roth, P. ; Rothmaier, F. ; Rott, C. ; Roucelle, C. ; Rutledge, D. ; Ruzybayev, B. ; Ryckbosch, D. ; Sander, H. G. ; Sarkar, S. ; Schatto, K. ; Schlenstedt, S. ; Schmidt, T. ; Schneider, D. ; Schukraft, A. ; Schulz, O. ; Schunck, M. ; Seckel, D. ; Semburg, B. ; Seo, S. H. ; Sestayo, Y. ; Seunarine, S. ; Silvestri, A. ; Slipak, A. ; Spiczak, G. M. ; Spiering, C. ; Stamatikos, M. ; Stanev, T. ; Stephens, G. ; Stezelberger, T. ; Stokstad, R. G. ; Stoufer, M. C. ; Stoyanov, S. ; Strahler, E. A. ; Straszheim, T. ; Sullivan, G. W. ; Swillens, Q. ; Taboada, I. ; Tamburro, A. ; Tarasova, O. ; Tepe, A. ; Ter-Antonyan, S. ; Terranova, C. ; Tilav, S. ; Toale, P. A. ; Tooker, J. ; Tosi, D. ; Turčan, D. ; Van Eijndhoven, N. ; Vandenbroucke, J. ; Van Overloop, A. ; Van Santen, J. ; Voigt, B. ; Walck, C. ; Waldenmaier, T. ; Wallraff, M. ; Walter, M. ; Wendt, C. ; Westerhoff, S. ; Whitehorn, N. ; Wiebe, K. ; Wiebusch, C. H. ; Wiedemann, A. ; Wikström, G. ; Williams, D. R. ; Wischnewski, R. ; Wissing, H. ; Woschnagg, K. ; Xu, C. ; Xu, X. W. ; Yodh, G. ; Yoshida, S. / Extending the search for neutrino point sources with iceCube above the horizon. In: Physical Review Letters. 2009 ; Vol. 103, No. 22.
@article{6149ee648b044034920af9623bba6dd0,
title = "Extending the search for neutrino point sources with iceCube above the horizon",
abstract = "Point source searches with the IceCube neutrino telescope have been restricted to one hemisphere, due to the exclusive selection of upward going events as a way of rejecting the atmospheric muon background. We show that the region above the horizon can be included by suppressing the background through energy-sensitive cuts. This improves the sensitivity above PeV energies, previously not accessible for declinations of more than a few degrees below the horizon due to the absorption of neutrinos in Earth. We present results based on data collected with 22 strings of IceCube, extending its field of view and energy reach for point source searches. No significant excess above the atmospheric background is observed in a sky scan and in tests of source candidates. Upper limits are reported, which for the first time cover point sources in the southern sky up to EeV energies.",
author = "R. Abbasi and Y. Abdou and T. Abu-Zayyad and J. Adams and Aguilar, {J. A.} and M. Ahlers and K. Andeen and J. Auffenberg and X. Bai and M. Baker and Barwick, {S. W.} and R. Bay and Alba, {J. L.Bazo} and K. Beattie and Beatty, {J. J.} and S. Bechet and Becker, {J. K.} and Becker, {K. H.} and {Lotfi Benabderrhmane}, Mohamed and J. Berdermann and P. Berghaus and D. Berley and E. Bernardini and D. Bertrand and Besson, {D. Z.} and M. Bissok and E. Blaufuss and Boersma, {D. J.} and C. Bohm and O. Botner and L. Bradley and J. Braun and D. Breder and M. Carson and T. Castermans and D. Chirkin and B. Christy and J. Clem and S. Cohen and Cowen, {D. F.} and D'Agostino, {M. V.} and M. Danninger and Day, {C. T.} and {De Clercq}, C. and L. Demir{\"o}rs and O. Depaepe and F. Descamps and P. Desiati and {De Vries-Uiterweerd}, G. and T. Deyoung and D{\'i}az-V{\'e}lez, {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 O. Engdeg{\aa}rd and S. Euler and Evenson, {P. A.} and O. Fadiran and Fazely, {A. R.} and T. Feusels and K. Filimonov and C. Finley and Foerster, {M. M.} and Fox, {B. D.} and A. Franckowiak and R. Franke and Gaisser, {T. K.} and J. Gallagher and R. Ganugapati and L. Gerhardt and L. Gladstone and A. Goldschmidt and Goodman, {J. A.} and R. Gozzini and D. Grant and T. Griesel and A. Gro{\ss} and S. Grullon and Gunasingha, {R. M.} and M. Gurtner and C. Ha and A. Hallgren and F. Halzen and K. Han and K. Hanson and Y. Hasegawa and K. Helbing and P. Herquet and S. Hickford and Hill, {G. C.} and Hoffman, {K. D.} and A. Homeier and K. Hoshina and D. Hubert and W. Huelsnitz and H{\"u}l{\ss}, {J. P.} and Hulth, {P. O.} and K. Hultqvist and S. Hussain and Imlay, {R. L.} and M. Inaba and A. Ishihara and J. Jacobsen and Japaridze, {G. S.} and H. Johansson and Joseph, {J. M.} and Kampert, {K. H.} and A. Kappes and T. Karg and A. Karle and Kelley, {J. L.} and N. Kemming and P. Kenny and J. Kiryluk and F. Kislat and Klein, {S. R.} and S. Knops and G. Kohnen and H. Kolanoski and L. K{\"o}pke and Koskinen, {D. J.} and M. Kowalski and T. Kowarik and M. Krasberg and T. Krings and G. Kroll and K. Kuehn and T. Kuwabara and M. Labare and S. Lafebre and K. Laihem and H. Landsman and R. Lauer and R. Lehmann and D. Lennarz and J. Lundberg and J. L{\"u}nemann and J. Madsen and P. Majumdar and R. Maruyama and K. Mase and Matis, {H. S.} and McParland, {C. P.} and K. Meagher and M. Merck and P. M{\'e}sz{\'a}ros and T. Meures and E. Middell and N. Milke and H. Miyamoto and T. Montaruli and R. Morse and Movit, {S. M.} and R. Nahnhauer and Nam, {J. W.} and P. Nie{\ss}en and Nygren, {D. R.} and S. Odrowski and A. Olivas and M. Olivo and M. Ono and S. Panknin and S. Patton and L. Paul and {De Los Heros}, {C. P{\'e}rez} and J. Petrovic and A. Piegsa and D. Pieloth and Pohl, {A. C.} and R. Porrata and N. Potthoff and Price, {P. B.} and M. Prikockis and Przybylski, {G. T.} and K. Rawlins and P. Redl and E. Resconi and W. Rhode and M. Ribordy and A. Rizzo and Rodrigues, {J. P.} and P. Roth and F. Rothmaier and C. Rott and C. Roucelle and D. Rutledge and B. Ruzybayev and D. Ryckbosch and Sander, {H. G.} and S. Sarkar and K. Schatto and S. Schlenstedt and T. Schmidt and D. Schneider and A. Schukraft and O. Schulz and M. Schunck and D. Seckel and B. Semburg and Seo, {S. H.} and Y. Sestayo and S. Seunarine and A. Silvestri and A. Slipak and Spiczak, {G. M.} and C. Spiering and M. Stamatikos and T. Stanev and G. Stephens and T. Stezelberger and Stokstad, {R. G.} and Stoufer, {M. C.} and S. Stoyanov and Strahler, {E. A.} and T. Straszheim and Sullivan, {G. W.} and Q. Swillens and I. Taboada and A. Tamburro and O. Tarasova and A. Tepe and S. Ter-Antonyan and C. Terranova and S. Tilav and Toale, {P. A.} and J. Tooker and D. Tosi and D. Turčan and {Van Eijndhoven}, N. and J. Vandenbroucke and {Van Overloop}, A. and {Van Santen}, J. and B. Voigt and C. Walck and T. Waldenmaier and M. Wallraff and M. Walter and C. Wendt and S. Westerhoff and N. Whitehorn and K. Wiebe and Wiebusch, {C. H.} and A. Wiedemann and G. Wikstr{\"o}m and Williams, {D. R.} and R. Wischnewski and H. Wissing and K. Woschnagg and C. Xu and Xu, {X. W.} and G. Yodh and S. Yoshida",
year = "2009",
month = "11",
day = "24",
doi = "10.1103/PhysRevLett.103.221102",
language = "English (US)",
volume = "103",
journal = "Physical Review Letters",
issn = "0031-9007",
publisher = "American Physical Society",
number = "22",

}

TY - JOUR

T1 - Extending the search for neutrino point sources with iceCube above the horizon

AU - Abbasi, R.

AU - Abdou, Y.

AU - Abu-Zayyad, T.

AU - Adams, J.

AU - Aguilar, J. A.

AU - Ahlers, M.

AU - Andeen, K.

AU - Auffenberg, J.

AU - Bai, X.

AU - Baker, M.

AU - Barwick, S. W.

AU - Bay, R.

AU - Alba, J. L.Bazo

AU - Beattie, K.

AU - Beatty, J. J.

AU - Bechet, S.

AU - Becker, J. K.

AU - Becker, K. H.

AU - Lotfi Benabderrhmane, Mohamed

AU - Berdermann, J.

AU - Berghaus, P.

AU - Berley, D.

AU - Bernardini, E.

AU - Bertrand, D.

AU - Besson, D. Z.

AU - Bissok, M.

AU - Blaufuss, E.

AU - Boersma, D. J.

AU - Bohm, C.

AU - Botner, O.

AU - Bradley, L.

AU - Braun, J.

AU - Breder, D.

AU - Carson, M.

AU - Castermans, T.

AU - Chirkin, D.

AU - Christy, B.

AU - Clem, J.

AU - Cohen, S.

AU - Cowen, D. F.

AU - D'Agostino, M. V.

AU - Danninger, M.

AU - Day, C. T.

AU - De Clercq, C.

AU - Demirörs, L.

AU - Depaepe, O.

AU - Descamps, F.

AU - Desiati, P.

AU - De Vries-Uiterweerd, G.

AU - Deyoung, T.

AU - Díaz-Vélez, 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 - Engdegård, O.

AU - Euler, S.

AU - Evenson, P. A.

AU - Fadiran, O.

AU - Fazely, A. R.

AU - Feusels, T.

AU - Filimonov, K.

AU - Finley, C.

AU - Foerster, M. M.

AU - Fox, B. D.

AU - Franckowiak, A.

AU - Franke, R.

AU - Gaisser, T. K.

AU - Gallagher, J.

AU - Ganugapati, R.

AU - Gerhardt, L.

AU - Gladstone, L.

AU - Goldschmidt, A.

AU - Goodman, J. A.

AU - Gozzini, R.

AU - Grant, D.

AU - Griesel, T.

AU - Groß, A.

AU - Grullon, S.

AU - Gunasingha, R. M.

AU - Gurtner, M.

AU - Ha, C.

AU - Hallgren, A.

AU - Halzen, F.

AU - Han, K.

AU - Hanson, K.

AU - Hasegawa, Y.

AU - Helbing, K.

AU - Herquet, P.

AU - Hickford, S.

AU - Hill, G. C.

AU - Hoffman, K. D.

AU - Homeier, A.

AU - Hoshina, K.

AU - Hubert, D.

AU - Huelsnitz, W.

AU - Hülß, J. P.

AU - Hulth, P. O.

AU - Hultqvist, K.

AU - Hussain, S.

AU - Imlay, R. L.

AU - Inaba, M.

AU - Ishihara, A.

AU - Jacobsen, J.

AU - Japaridze, G. S.

AU - Johansson, H.

AU - Joseph, J. M.

AU - Kampert, K. H.

AU - Kappes, A.

AU - Karg, T.

AU - Karle, A.

AU - Kelley, J. L.

AU - Kemming, N.

AU - Kenny, P.

AU - Kiryluk, J.

AU - Kislat, F.

AU - Klein, S. R.

AU - Knops, S.

AU - Kohnen, G.

AU - Kolanoski, H.

AU - Köpke, L.

AU - Koskinen, D. J.

AU - Kowalski, M.

AU - Kowarik, T.

AU - Krasberg, M.

AU - Krings, T.

AU - Kroll, G.

AU - Kuehn, K.

AU - Kuwabara, T.

AU - Labare, M.

AU - Lafebre, S.

AU - Laihem, K.

AU - Landsman, H.

AU - Lauer, R.

AU - Lehmann, R.

AU - Lennarz, D.

AU - Lundberg, J.

AU - Lünemann, J.

AU - Madsen, J.

AU - Majumdar, P.

AU - Maruyama, R.

AU - Mase, K.

AU - Matis, H. S.

AU - McParland, C. P.

AU - Meagher, K.

AU - Merck, M.

AU - Mészáros, P.

AU - Meures, T.

AU - Middell, E.

AU - Milke, N.

AU - Miyamoto, H.

AU - Montaruli, T.

AU - Morse, R.

AU - Movit, S. M.

AU - Nahnhauer, R.

AU - Nam, J. W.

AU - Nießen, P.

AU - Nygren, D. R.

AU - Odrowski, S.

AU - Olivas, A.

AU - Olivo, M.

AU - Ono, M.

AU - Panknin, S.

AU - Patton, S.

AU - Paul, L.

AU - De Los Heros, C. Pérez

AU - Petrovic, J.

AU - Piegsa, A.

AU - Pieloth, D.

AU - Pohl, A. C.

AU - Porrata, R.

AU - Potthoff, N.

AU - Price, P. B.

AU - Prikockis, M.

AU - Przybylski, G. T.

AU - Rawlins, K.

AU - Redl, P.

AU - Resconi, E.

AU - Rhode, W.

AU - Ribordy, M.

AU - Rizzo, A.

AU - Rodrigues, J. P.

AU - Roth, P.

AU - Rothmaier, F.

AU - Rott, C.

AU - Roucelle, C.

AU - Rutledge, D.

AU - Ruzybayev, B.

AU - Ryckbosch, D.

AU - Sander, H. G.

AU - Sarkar, S.

AU - Schatto, K.

AU - Schlenstedt, S.

AU - Schmidt, T.

AU - Schneider, D.

AU - Schukraft, A.

AU - Schulz, O.

AU - Schunck, M.

AU - Seckel, D.

AU - Semburg, B.

AU - Seo, S. H.

AU - Sestayo, Y.

AU - Seunarine, S.

AU - Silvestri, A.

AU - Slipak, A.

AU - Spiczak, G. M.

AU - Spiering, C.

AU - Stamatikos, M.

AU - Stanev, T.

AU - Stephens, G.

AU - Stezelberger, T.

AU - Stokstad, R. G.

AU - Stoufer, M. C.

AU - Stoyanov, S.

AU - Strahler, E. A.

AU - Straszheim, T.

AU - Sullivan, G. W.

AU - Swillens, Q.

AU - Taboada, I.

AU - Tamburro, A.

AU - Tarasova, O.

AU - Tepe, A.

AU - Ter-Antonyan, S.

AU - Terranova, C.

AU - Tilav, S.

AU - Toale, P. A.

AU - Tooker, J.

AU - Tosi, D.

AU - Turčan, D.

AU - Van Eijndhoven, N.

AU - Vandenbroucke, J.

AU - Van Overloop, A.

AU - Van Santen, J.

AU - Voigt, B.

AU - Walck, C.

AU - Waldenmaier, T.

AU - Wallraff, M.

AU - Walter, M.

AU - Wendt, C.

AU - Westerhoff, S.

AU - Whitehorn, N.

AU - Wiebe, K.

AU - Wiebusch, C. H.

AU - Wiedemann, A.

AU - Wikström, G.

AU - Williams, D. R.

AU - Wischnewski, R.

AU - Wissing, H.

AU - Woschnagg, K.

AU - Xu, C.

AU - Xu, X. W.

AU - Yodh, G.

AU - Yoshida, S.

PY - 2009/11/24

Y1 - 2009/11/24

N2 - Point source searches with the IceCube neutrino telescope have been restricted to one hemisphere, due to the exclusive selection of upward going events as a way of rejecting the atmospheric muon background. We show that the region above the horizon can be included by suppressing the background through energy-sensitive cuts. This improves the sensitivity above PeV energies, previously not accessible for declinations of more than a few degrees below the horizon due to the absorption of neutrinos in Earth. We present results based on data collected with 22 strings of IceCube, extending its field of view and energy reach for point source searches. No significant excess above the atmospheric background is observed in a sky scan and in tests of source candidates. Upper limits are reported, which for the first time cover point sources in the southern sky up to EeV energies.

AB - Point source searches with the IceCube neutrino telescope have been restricted to one hemisphere, due to the exclusive selection of upward going events as a way of rejecting the atmospheric muon background. We show that the region above the horizon can be included by suppressing the background through energy-sensitive cuts. This improves the sensitivity above PeV energies, previously not accessible for declinations of more than a few degrees below the horizon due to the absorption of neutrinos in Earth. We present results based on data collected with 22 strings of IceCube, extending its field of view and energy reach for point source searches. No significant excess above the atmospheric background is observed in a sky scan and in tests of source candidates. Upper limits are reported, which for the first time cover point sources in the southern sky up to EeV energies.

UR - http://www.scopus.com/inward/record.url?scp=72649098574&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=72649098574&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.103.221102

DO - 10.1103/PhysRevLett.103.221102

M3 - Article

VL - 103

JO - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

IS - 22

M1 - 221102

ER -