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Measurement of the anisotropy of cosmic-ray arrival directions with IceCube

(2010) ASTROPHYSICAL JOURNAL LETTERS. 718(2). p.L194-L198
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Abstract
We report the first observation of an anisotropy in the arrival direction of cosmic rays with energies in the multi-TeV region in the Southern sky using data from the IceCube detector. Between 2007 June and 2008 March, the partially deployed IceCube detector was operated in a configuration with 1320 digital optical sensors distributed over 22 strings at depths between 1450 and 2450 m inside the Antarctic ice. IceCube is a neutrino detector, but the data are dominated by a large background of cosmic-ray muons. Therefore, the background data are suitable for high-statistics studies of cosmic rays in the southern sky. The data include 4.3 billion muons produced by downward-going cosmic-ray interactions in the atmosphere; these events were reconstructed with a median angular resolution of 3 degrees and a median energy of similar to 20 TeV. Their arrival direction distribution exhibits an anisotropy in right ascension with a first-harmonic amplitude of (6.4 +/- 0.2 stat. +/- 0.8 syst.) x 10(-4).
Keywords
neutrinos, cosmic rays

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Chicago
Abbasi, R, Yasser Abdou, T Abu-Zayyad, J Adams, JA Aguilar, M Ahlers, K Andeen, et al. 2010. “Measurement of the Anisotropy of Cosmic-ray Arrival Directions with IceCube.” Astrophysical Journal Letters 718 (2): L194–L198.
APA
Abbasi, R., Abdou, Y., Abu-Zayyad, T., Adams, J., Aguilar, J., Ahlers, M., Andeen, K., et al. (2010). Measurement of the anisotropy of cosmic-ray arrival directions with IceCube. ASTROPHYSICAL JOURNAL LETTERS, 718(2), L194–L198.
Vancouver
1.
Abbasi R, Abdou Y, Abu-Zayyad T, Adams J, Aguilar J, Ahlers M, et al. Measurement of the anisotropy of cosmic-ray arrival directions with IceCube. ASTROPHYSICAL JOURNAL LETTERS. 2010;718(2):L194–L198.
MLA
Abbasi, R, Yasser Abdou, T Abu-Zayyad, et al. “Measurement of the Anisotropy of Cosmic-ray Arrival Directions with IceCube.” ASTROPHYSICAL JOURNAL LETTERS 718.2 (2010): L194–L198. Print.
@article{1285048,
  abstract     = {We report the first observation of an anisotropy in the arrival direction of cosmic rays with energies in the multi-TeV region in the Southern sky using data from the IceCube detector. Between 2007 June and 2008 March, the partially deployed IceCube detector was operated in a configuration with 1320 digital optical sensors distributed over 22 strings at depths between 1450 and 2450 m inside the Antarctic ice. IceCube is a neutrino detector, but the data are dominated by a large background of cosmic-ray muons. Therefore, the background data are suitable for high-statistics studies of cosmic rays in the southern sky. The data include 4.3 billion muons produced by downward-going cosmic-ray interactions in the atmosphere; these events were reconstructed with a median angular resolution of 3 degrees and a median energy of similar to 20 TeV. Their arrival direction distribution exhibits an anisotropy in right ascension with a first-harmonic amplitude of (6.4 +/- 0.2 stat. +/- 0.8 syst.) x 10(-4).},
  author       = {Abbasi, R and Abdou, Yasser and Abu-Zayyad, T and Adams, J and Aguilar, JA and Ahlers, M and Andeen, K and Auffenberg, J and Bai, X and Baker, M and Barwick, SW and Bay, R and Alba, JLB and Beattie, K and Beatty, JJ and Bechet, S and Becker, JK and Becker, KH and Benabderrahmane, ML and BenZvi, S and Berdermann, J and Berghaus, P and Berley, D and Bernardini, E and Bertrand, D and Besson, DZ and Bissok, M and Blaufuss, E and Boersma, DJ and Bohm, C and Boser, S and Botner, O and Bradley, L and Braun, J and Buitink, S and Carson, Michael and Chirkin, D and Christy, B and Clem, J and Clevermann, F and Cohen, S and Colnard, C and Cowen, DF and D'Agostino, MV and Danninger, M and Davis, JC and De Clercq, C and Demirors, L and Depaepe, O and Descamps, Freija and Desiati, P and De Vries-Uiterweerd, Garmt and DeYoung, T and Diaz-Velez, JC and Dierckxsens, M and Dreyer, J and Dumm, JP and Duvoort, MR and Ehrlich, R and Eisch, J and Ellsworth, RW and Engdegard, O and Euler, S and Evenson, PA and Fadiran, O and Fazely, AR and Feusels, Tom and Filimonov, K and Finley, C and Foerster, MM and Fox, BD and Franckowiak, A and Franke, R and Gaisser, TK and Gallagher, J and Geisler, M and Gerhardt, L and Gladstone, L and Glusenkamp, T and Goldschmidt, A and Goodman, JA and Grant, D and Griesel, T and Gross, A and Grullon, S and Gurtner, M and Ha, C and Hallgren, A and Halzen, F and Han, K and Hanson, K and Helbing, K and Herquet, P and Hickford, S and Hill, GC and Hoffman, KD and Homeier, A and Hoshina, K and Hubert, D and Huelsnitz, W and Hulss, JP and Hulth, PO and Hultqvist, K and Hussain, S and Ishihara, A and Jacobsen, J and Japaridze, GS and Johansson, H and Joseph, JM and Kampert, KH and Karg, T and Karle, A and Kelley, JL and Kemming, N and Kenny, P and Kiryluk, J and Kislat, F and Klein, SR and Knops, S and Kohne, JH and Kohnen, G and Kolanoski, H and Kopke, L and Koskinen, DJ and Kowalski, M and Kowarik, T and Krasberg, M and Krings, T and Kroll, G and Kuehn, K and Kuwabara, T and Labare, M and Lafebre, S and Laihem, K and Landsman, H and Lauer, R and Lehmann, R and Lennarz, D and Lunemann, J and Madsen, J and Majumdar, P and Marotta, A and Maruyama, R and Mase, K and Matis, HS and Matusik, M and Meagher, K and Merck, M and Meszaros, P and Meures, T and Middell, E and Milke, N and Miller, J and Montaruli, T and Morse, R and Movit, SM and Nahnhauer, R and Nam, JW and Naumann, U and Niessen, P and Nygren, DR and Odrowski, S and Olivas, A and Olivo, M and O'Murchadha, A and Ono, M and Panknin, S and Paul, L and de los Heros, CP and Petrovic, J and Piegsa, A and Pieloth, D and Porrata, R and Posselt, J and Price, PB and Prikockis, M and Przybylski, GT and Rawlins, K and Redl, P and Resconi, E and Rhode, W and Ribordy, M and Rizzo, A and Rodrigues, JP and Roth, P and Rothmaier, F and Rott, C and Roucelle, C and Ruhe, T and Rutledge, D and Ruzybayev, B and Ryckbosch, Dirk and Sander, HG and Santander, M and Sarkar, S and Schatto, K and Schlenstedt, S and Schmidt, T and Schukraft, A and Schultes, A and Schulz, O and Schunck, M and Seckel, D and Semburg, B and Seo, SH and Sestayo, Y and Seunarine, S and Silvestri, A and Slipak, A and Spiczak, GM and Spiering, C and Stamatikos, M and Stanev, T and Stephens, G and Stezelberger, T and Stokstad, RG and Stoyanov, S and Strahler, EA and Straszheim, T and Sullivan, GW and Swillens, Q and Taavola, H and Taboada, I and Tamburro, A and Tarasova, O and Tepe, A and Ter-Antonyan, S and Tilav, S and Toale, PA and Toscano, S and Tosi, D and Turcan, D and van Eijndhoven, N and Vandenbroucke, J and Van Overloop, Arne and van Santen, J and Voge, M and Voigt, B and Walck, C and Waldenmaier, T and Wallraff, M and Walter, M and Weaver, C and Wendt, C and Westerhoff, S and Whitehorn, N and Wiebe, K and Wiebusch, CH and Wikstrom, G and Williams, DR and Wischnewski, R and Wissing, H and Wolf, M and Woschnagg, K and Xu, C and Xu, XW and Yodh, G and Yoshida, S and Zarzhitsky, P},
  issn         = {2041-8205},
  journal      = {ASTROPHYSICAL JOURNAL LETTERS},
  keyword      = {neutrinos,cosmic rays},
  language     = {eng},
  number       = {2},
  pages        = {L194--L198},
  title        = {Measurement of the anisotropy of cosmic-ray arrival directions with IceCube},
  url          = {http://dx.doi.org/10.1088/2041-8205/718/2/L194},
  volume       = {718},
  year         = {2010},
}

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