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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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MLA
Abbasi, R., et al. “Measurement of the Anisotropy of Cosmic-Ray Arrival Directions with IceCube.” ASTROPHYSICAL JOURNAL LETTERS, vol. 718, no. 2, 2010, pp. L194–98, doi:10.1088/2041-8205/718/2/L194.
APA
Abbasi, R., Abdou, Y., Abu-Zayyad, T., Adams, J., Aguilar, J., Ahlers, M., … Zarzhitsky, P. (2010). Measurement of the anisotropy of cosmic-ray arrival directions with IceCube. ASTROPHYSICAL JOURNAL LETTERS, 718(2), L194–L198. https://doi.org/10.1088/2041-8205/718/2/L194
Chicago author-date
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): L194–98. https://doi.org/10.1088/2041-8205/718/2/L194.
Chicago author-date (all authors)
Abbasi, R, Yasser Abdou, T Abu-Zayyad, J Adams, JA Aguilar, M Ahlers, K Andeen, J Auffenberg, X Bai, M Baker, SW Barwick, R Bay, JLB Alba, K Beattie, JJ Beatty, S Bechet, JK Becker, KH Becker, ML Benabderrahmane, S BenZvi, J Berdermann, P Berghaus, D Berley, E Bernardini, D Bertrand, DZ Besson, M Bissok, E Blaufuss, DJ Boersma, C Bohm, S Boser, O Botner, L Bradley, J Braun, S Buitink, Michael Carson, D Chirkin, B Christy, J Clem, F Clevermann, S Cohen, C Colnard, DF Cowen, MV D’Agostino, M Danninger, JC Davis, C De Clercq, L Demirors, O Depaepe, Freija Descamps, P Desiati, Garmt De Vries-Uiterweerd, T DeYoung, JC Diaz-Velez, M Dierckxsens, J Dreyer, JP Dumm, MR Duvoort, R Ehrlich, J Eisch, RW Ellsworth, O Engdegard, S Euler, PA Evenson, O Fadiran, AR Fazely, Tom Feusels, K Filimonov, C Finley, MM Foerster, BD Fox, A Franckowiak, R Franke, TK Gaisser, J Gallagher, M Geisler, L Gerhardt, L Gladstone, T Glusenkamp, A Goldschmidt, JA Goodman, D Grant, T Griesel, A Gross, S Grullon, M Gurtner, C Ha, A Hallgren, F Halzen, K Han, K Hanson, K Helbing, P Herquet, S Hickford, GC Hill, KD Hoffman, A Homeier, K Hoshina, D Hubert, W Huelsnitz, JP Hulss, PO Hulth, K Hultqvist, S Hussain, A Ishihara, J Jacobsen, GS Japaridze, H Johansson, JM Joseph, KH Kampert, T Karg, A Karle, JL Kelley, N Kemming, P Kenny, J Kiryluk, F Kislat, SR Klein, S Knops, JH Kohne, G Kohnen, H Kolanoski, L Kopke, DJ 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 Lunemann, J Madsen, P Majumdar, A Marotta, R Maruyama, K Mase, HS Matis, M Matusik, K Meagher, M Merck, P Meszaros, T Meures, E Middell, N Milke, J Miller, T Montaruli, R Morse, SM Movit, R Nahnhauer, JW Nam, U Naumann, P Niessen, DR Nygren, S Odrowski, A Olivas, M Olivo, A O’Murchadha, M Ono, S Panknin, L Paul, CP de los Heros, J Petrovic, A Piegsa, D Pieloth, R Porrata, J Posselt, PB Price, M Prikockis, GT Przybylski, K Rawlins, P Redl, E Resconi, W Rhode, M Ribordy, A Rizzo, JP Rodrigues, P Roth, F Rothmaier, C Rott, C Roucelle, T Ruhe, D Rutledge, B Ruzybayev, Dirk Ryckbosch, HG Sander, M Santander, S Sarkar, K Schatto, S Schlenstedt, T Schmidt, A Schukraft, A Schultes, O Schulz, M Schunck, D Seckel, B Semburg, SH Seo, Y Sestayo, S Seunarine, A Silvestri, A Slipak, GM Spiczak, C Spiering, M Stamatikos, T Stanev, G Stephens, T Stezelberger, RG Stokstad, S Stoyanov, EA Strahler, T Straszheim, GW Sullivan, Q Swillens, H Taavola, I Taboada, A Tamburro, O Tarasova, A Tepe, S Ter-Antonyan, S Tilav, PA Toale, S Toscano, D Tosi, D Turcan, N van Eijndhoven, J Vandenbroucke, Arne Van Overloop, J van Santen, M Voge, B Voigt, C Walck, T Waldenmaier, M Wallraff, M Walter, C Weaver, C Wendt, S Westerhoff, N Whitehorn, K Wiebe, CH Wiebusch, G Wikstrom, DR Williams, R Wischnewski, H Wissing, M Wolf, K Woschnagg, C Xu, XW Xu, G Yodh, S Yoshida, and P Zarzhitsky. 2010. “Measurement of the Anisotropy of Cosmic-Ray Arrival Directions with IceCube.” ASTROPHYSICAL JOURNAL LETTERS 718 (2): L194–L198. doi:10.1088/2041-8205/718/2/L194.
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):L194–8.
IEEE
[1]
R. Abbasi et al., “Measurement of the anisotropy of cosmic-ray arrival directions with IceCube,” ASTROPHYSICAL JOURNAL LETTERS, vol. 718, no. 2, pp. L194–L198, 2010.
@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}},
  keywords     = {{neutrinos,cosmic rays}},
  language     = {{eng}},
  number       = {{2}},
  pages        = {{L194--L198}},
  title        = {{Measurement of the anisotropy of cosmic-ray arrival directions with IceCube}},
  url          = {{http://doi.org/10.1088/2041-8205/718/2/L194}},
  volume       = {{718}},
  year         = {{2010}},
}

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