First neutrino point-source results from the 22 string IceCube detector

R. Abbasi; Y. Abdou; M. Ackermann; J. Adams; J. 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; M. L. Benabderrahmane; J. Berdermann; P. Berghaus; D. Berley; E. Bernardini; D. Bertrand; D. Z. Besson; M. Bissok; E. Blaufuss; D. J. Boersma; C. Bohm; J. Bolmont; S. Böser; O. Botner; L. Bradley; J. Braun; D. Breder; 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. Diaz-Velez; 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. Gro; S. Grullon; R. M. Gunasingha; M. Gurtner; C. Ha; A. Hallgren; F. Halzen; K. Han; K. Hanson; Y. Hasegawa; J. Heise; K. Helbing; P. Herquet; S. Hickford; G. C. Hill; K. D. Hoffman; K. Hoshina; D. Hubert; W. Huelsnitz; J. P. Hül; 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; P. Kenny; J. Kiryluk; F. Kislat; S. R. Klein; S. Klepser; S. Knops; G. Kohnen; H. Kolanoski; L. Köpke; M. Kowalski; T. Kowarik; M. Krasberg; K. Kuehn; T. Kuwabara; M. Labare; S. Lafebre; K. Laihem; H. Landsman; R. Lauer; H. Leich; D. Lennarz; A. Lucke; J. Lundberg; J. Lünemann; J. Madsen; P. Majumdar; R. Maruyama; K. Mase; H. S. Matis; C. P. McParland; K. Meagher; M. Merck; P. Mészros; E. Middell; N. Milke; H. Miyamoto; A. Mohr; T. Montaruli; R. Morse; S. M. Movit; K. Münich; R. Nahnhauer; J. W. Nam; P. Nieen; D. R. Nygren; S. Odrowski; A. Olivas; M. Olivo; M. Ono; S. Panknin; S. Patton; 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; D. Ryckbosch; H. G. Sander; S. Sarkar; K. Satalecka; 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; K. H. Sulanke; G. W. Sullivan; Q. Swillens; I. Taboada; O. Tarasova; A. Tepe; S. Ter-Antonyan; C. Terranova; S. Tilav; M. Tluczykont; P. A. Toale; D. Tosi; D. Turan; N. Van Eijndhoven; J. Vandenbroucke; A. Van Overloop; B. Voigt; C. Walck; T. Waldenmaier; M. Walter; C. Wendt; S. Westerhoff; N. Whitehorn; C. H. Wiebusch; A. Wiedemann; G. Wikström; D. R. Williams; R. Wischnewski; H. Wissing; K. Woschnagg; X. W. Xu; G. Yodh; S. Yoshida

doi:10.1088/0004-637X/701/1/L47

First neutrino point-source results from the 22 string IceCube detector

R. Abbasi, Y. Abdou, M. Ackermann, J. Adams, J. 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, M. L. Benabderrahmane, J. BerdermannP. Berghaus, D. Berley, E. Bernardini, D. Bertrand, D. Z. Besson, M. Bissok, E. Blaufuss, D. J. Boersma, C. Bohm, J. Bolmont, S. Böser, O. Botner, L. Bradley, J. Braun, D. Breder, 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. Diaz-Velez, 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. Gro, S. Grullon, R. M. Gunasingha, M. Gurtner, C. Ha, A. Hallgren, F. Halzen, K. Han, K. Hanson, Y. Hasegawa, J. Heise, K. Helbing, P. Herquet, S. Hickford, G. C. Hill, K. D. Hoffman, K. Hoshina, D. Hubert, W. Huelsnitz, J. P. Hül, 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, P. Kenny, J. Kiryluk, F. Kislat, S. R. Klein, S. Klepser, S. Knops, G. Kohnen, H. Kolanoski, L. Köpke, M. Kowalski, T. Kowarik, M. Krasberg, K. Kuehn, T. Kuwabara, M. Labare, S. Lafebre, K. Laihem, H. Landsman, R. Lauer, H. Leich, D. Lennarz, A. Lucke, J. Lundberg, J. Lünemann, J. Madsen, P. Majumdar, R. Maruyama, K. Mase, H. S. Matis, C. P. McParland, K. Meagher, M. Merck, P. Mészros, E. Middell, N. Milke, H. Miyamoto, A. Mohr, T. Montaruli, R. Morse, S. M. Movit, K. Münich, R. Nahnhauer, J. W. Nam, P. Nieen, D. R. Nygren, S. Odrowski, A. Olivas, M. Olivo, M. Ono, S. Panknin, S. Patton, 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, D. Ryckbosch, H. G. Sander, S. Sarkar, K. Satalecka, 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, K. H. Sulanke, G. W. Sullivan, Q. Swillens, I. Taboada, O. Tarasova, A. Tepe, S. Ter-Antonyan, C. Terranova, S. Tilav, M. Tluczykont, P. A. Toale, D. Tosi, D. Turan, N. Van Eijndhoven, J. Vandenbroucke, A. Van Overloop, B. Voigt, C. Walck, T. Waldenmaier, M. Walter, C. Wendt, S. Westerhoff, N. Whitehorn, C. H. Wiebusch, A. Wiedemann, G. Wikström, D. R. Williams, R. Wischnewski, H. Wissing, K. Woschnagg, X. W. Xu, G. Yodh, S. Yoshida

Research output: Contribution to journal › Article › peer-review

57 Scopus citations

Abstract

We present new results of searches for neutrino point sources in the northern sky, using data recorded in 2007-2008 with 22 strings of the IceCube detector (approximately one-fourth of the planned total) and 275.7 days of live time. The final sample of 5114 neutrino candidate events agrees well with the expected background of atmospheric muon neutrinos and a small component of atmospheric muons. No evidence of a point source is found, with the most significant excess of events in the sky at 2.2σ after accounting for all trials. The average upper limit over the northern sky for point sources of muon-neutrinos with E ^-2 spectrum is E ^-2 φ_v le; 1.4 × 10^-11 TeV cm^?2 ≤ s^?1, in the energy range from 3TeV to 3PeV, improving the previous best average upper limit by the AMANDA-II detector by a factor of 2.

Original language	English (US)
Pages (from-to)	L47-L51
Journal	Astrophysical Journal
Volume	701
Issue number	1 PART 2
DOIs	https://doi.org/10.1088/0004-637X/701/1/L47
State	Published - 2009

All Science Journal Classification (ASJC) codes

Astronomy and Astrophysics
Space and Planetary Science

Access to Document

10.1088/0004-637X/701/1/L47

Cite this

Abbasi, R., Abdou, Y., Ackermann, M., Adams, J., Aguilar, J., Ahlers, M., Andeen, K., Auffenberg, J., Bai, X., Baker, M., Barwick, S. W., Bay, R., Bazo Alba, J. L., Beattie, K., Beatty, J. J., Bechet, S., Becker, J. K., Becker, K. H., Benabderrahmane, M. L., ... Yoshida, S. (2009). First neutrino point-source results from the 22 string IceCube detector. Astrophysical Journal, 701(1 PART 2), L47-L51. https://doi.org/10.1088/0004-637X/701/1/L47

@article{def08f557b9b4974b086ca4a44cf3a89,

title = "First neutrino point-source results from the 22 string IceCube detector",

abstract = "We present new results of searches for neutrino point sources in the northern sky, using data recorded in 2007-2008 with 22 strings of the IceCube detector (approximately one-fourth of the planned total) and 275.7 days of live time. The final sample of 5114 neutrino candidate events agrees well with the expected background of atmospheric muon neutrinos and a small component of atmospheric muons. No evidence of a point source is found, with the most significant excess of events in the sky at 2.2σ after accounting for all trials. The average upper limit over the northern sky for point sources of muon-neutrinos with E -2 spectrum is E -2 φv le; 1.4 × 10-11 TeV cm?2 ≤ s?1, in the energy range from 3TeV to 3PeV, improving the previous best average upper limit by the AMANDA-II detector by a factor of 2.",

author = "R. Abbasi and Y. Abdou and M. Ackermann and J. Adams and J. Aguilar and M. Ahlers and K. Andeen and J. Auffenberg and X. Bai and M. Baker and Barwick, {S. W.} and R. Bay and {Bazo Alba}, {J. L.} and K. Beattie and Beatty, {J. J.} and S. Bechet and Becker, {J. K.} and Becker, {K. H.} and Benabderrahmane, {M. L.} 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 J. Bolmont and S. B{\"o}ser and O. Botner and L. Bradley and J. Braun and D. Breder 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 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 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 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 J. Heise and K. Helbing and P. Herquet and S. Hickford and Hill, {G. C.} and Hoffman, {K. D.} and K. Hoshina and D. Hubert and W. Huelsnitz and H{\"u}l, {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 P. Kenny and J. Kiryluk and F. Kislat and Klein, {S. R.} and S. Klepser and S. Knops and G. Kohnen and H. Kolanoski and L. K{\"o}pke and M. Kowalski and T. Kowarik and M. Krasberg and K. Kuehn and T. Kuwabara and M. Labare and S. Lafebre and K. Laihem and H. Landsman and R. Lauer and H. Leich and D. Lennarz and A. Lucke 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}szros and E. Middell and N. Milke and H. Miyamoto and A. Mohr and T. Montaruli and R. Morse and Movit, {S. M.} and K. M{\"u}nich and R. Nahnhauer and Nam, {J. W.} and P. Nieen and Nygren, {D. R.} and S. Odrowski and A. Olivas and M. Olivo and M. Ono and S. Panknin and S. Patton and {P{\'e}rez De Los Heros}, C. 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 D. Ryckbosch and Sander, {H. G.} and S. Sarkar and K. Satalecka 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 Sulanke, {K. H.} and Sullivan, {G. W.} and Q. Swillens and I. Taboada and O. Tarasova and A. Tepe and S. Ter-Antonyan and C. Terranova and S. Tilav and M. Tluczykont and Toale, {P. A.} and D. Tosi and D. Turan and {Van Eijndhoven}, N. and J. Vandenbroucke and {Van Overloop}, A. and B. Voigt and C. Walck and T. Waldenmaier and M. Walter and C. Wendt and S. Westerhoff and N. Whitehorn 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 Xu, {X. W.} and G. Yodh and S. Yoshida",

year = "2009",

doi = "10.1088/0004-637X/701/1/L47",

language = "English (US)",

volume = "701",

pages = "L47--L51",

journal = "Astrophysical Journal",

issn = "0004-637X",

publisher = "IOP Publishing Ltd.",

number = "1 PART 2",

}

Abbasi, R, Abdou, Y, Ackermann, M, Adams, J, Aguilar, J, Ahlers, M, Andeen, K, Auffenberg, J, Bai, X, Baker, M, Barwick, SW, Bay, R, Bazo Alba, JL, Beattie, K, Beatty, JJ, Bechet, S, Becker, JK, Becker, KH, Benabderrahmane, ML, Berdermann, J, Berghaus, P, Berley, D, Bernardini, E, Bertrand, D, Besson, DZ, Bissok, M, Blaufuss, E, Boersma, DJ, Bohm, C, Bolmont, J, Böser, S, Botner, O, Bradley, L, Braun, J, Breder, D, 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, Diaz-Velez, 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, Gro, A, Grullon, S, Gunasingha, RM, Gurtner, M, Ha, C, Hallgren, A, Halzen, F, Han, K, Hanson, K, Hasegawa, Y, Heise, J, Helbing, K, Herquet, P, Hickford, S, Hill, GC, Hoffman, KD, Hoshina, K, Hubert, D, Huelsnitz, W, Hül, 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, Kenny, P, Kiryluk, J, Kislat, F, Klein, SR, Klepser, S, Knops, S, Kohnen, G, Kolanoski, H, Köpke, L, Kowalski, M, Kowarik, T, Krasberg, M, Kuehn, K, Kuwabara, T, Labare, M, Lafebre, S, Laihem, K, Landsman, H, Lauer, R, Leich, H, Lennarz, D, Lucke, A, Lundberg, J, Lünemann, J, Madsen, J, Majumdar, P, Maruyama, R, Mase, K, Matis, HS, McParland, CP, Meagher, K, Merck, M, Mészros, P, Middell, E, Milke, N, Miyamoto, H, Mohr, A, Montaruli, T, Morse, R, Movit, SM, Münich, K, Nahnhauer, R, Nam, JW, Nieen, P, Nygren, DR, Odrowski, S, Olivas, A, Olivo, M, Ono, M, Panknin, S, Patton, S, Pérez De Los Heros, C, 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, Ryckbosch, D, Sander, HG, Sarkar, S, Satalecka, 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, Sulanke, KH, Sullivan, GW, Swillens, Q, Taboada, I, Tarasova, O, Tepe, A, Ter-Antonyan, S, Terranova, C, Tilav, S, Tluczykont, M, Toale, PA, Tosi, D, Turan, D, Van Eijndhoven, N, Vandenbroucke, J, Van Overloop, A, Voigt, B, Walck, C, Waldenmaier, T, Walter, M, Wendt, C, Westerhoff, S, Whitehorn, N, Wiebusch, CH, Wiedemann, A, Wikström, G, Williams, DR, Wischnewski, R, Wissing, H, Woschnagg, K, Xu, XW, Yodh, G & Yoshida, S 2009, 'First neutrino point-source results from the 22 string IceCube detector', Astrophysical Journal, vol. 701, no. 1 PART 2, pp. L47-L51. https://doi.org/10.1088/0004-637X/701/1/L47

TY - JOUR

T1 - First neutrino point-source results from the 22 string IceCube detector

AU - Abbasi, R.

AU - Abdou, Y.

AU - Ackermann, M.

AU - Adams, J.

AU - Aguilar, J.

AU - Ahlers, M.

AU - Andeen, K.

AU - Auffenberg, J.

AU - Bai, X.

AU - Baker, M.

AU - Barwick, S. W.

AU - Bay, R.

AU - Bazo Alba, J. L.

AU - Beattie, K.

AU - Beatty, J. J.

AU - Bechet, S.

AU - Becker, J. K.

AU - Becker, K. H.

AU - Benabderrahmane, M. L.

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 - Bolmont, J.

AU - Böser, S.

AU - Botner, O.

AU - Bradley, L.

AU - Braun, J.

AU - Breder, D.

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 - 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 - 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 - Gro, 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 - Heise, J.

AU - Helbing, K.

AU - Herquet, P.

AU - Hickford, S.

AU - Hill, G. C.

AU - Hoffman, K. D.

AU - Hoshina, K.

AU - Hubert, D.

AU - Huelsnitz, W.

AU - Hül, 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.

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PY - 2009

Y1 - 2009

N2 - We present new results of searches for neutrino point sources in the northern sky, using data recorded in 2007-2008 with 22 strings of the IceCube detector (approximately one-fourth of the planned total) and 275.7 days of live time. The final sample of 5114 neutrino candidate events agrees well with the expected background of atmospheric muon neutrinos and a small component of atmospheric muons. No evidence of a point source is found, with the most significant excess of events in the sky at 2.2σ after accounting for all trials. The average upper limit over the northern sky for point sources of muon-neutrinos with E -2 spectrum is E -2 φv le; 1.4 × 10-11 TeV cm?2 ≤ s?1, in the energy range from 3TeV to 3PeV, improving the previous best average upper limit by the AMANDA-II detector by a factor of 2.

AB - We present new results of searches for neutrino point sources in the northern sky, using data recorded in 2007-2008 with 22 strings of the IceCube detector (approximately one-fourth of the planned total) and 275.7 days of live time. The final sample of 5114 neutrino candidate events agrees well with the expected background of atmospheric muon neutrinos and a small component of atmospheric muons. No evidence of a point source is found, with the most significant excess of events in the sky at 2.2σ after accounting for all trials. The average upper limit over the northern sky for point sources of muon-neutrinos with E -2 spectrum is E -2 φv le; 1.4 × 10-11 TeV cm?2 ≤ s?1, in the energy range from 3TeV to 3PeV, improving the previous best average upper limit by the AMANDA-II detector by a factor of 2.

UR - http://www.scopus.com/inward/record.url?scp=72649104127&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=72649104127&partnerID=8YFLogxK

U2 - 10.1088/0004-637X/701/1/L47

DO - 10.1088/0004-637X/701/1/L47

M3 - Article

AN - SCOPUS:72649104127

VL - 701

SP - L47-L51

JO - Astrophysical Journal

JF - Astrophysical Journal

SN - 0004-637X

IS - 1 PART 2

ER -

First neutrino point-source results from the 22 string IceCube detector

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