Anisotropy in cosmic-ray arrival directions in the Southern hemisphere based on six years of data from the IceCube detector

The IceCube Neutrino Observatory accumulated a total of 318 billion cosmic-ray-induced muon events between 2009 May and 2015 May. This data set was used for a detailed analysis of the sidereal anisotropy in the arrival directions of cosmic rays in the TeV to PeV energy range. The observed global sid...

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Hauptverfasser:	Ackermann, M, Altmann, D, Anderson, T, Ansseau, I, Beatty, J. J, Becker Tjus, J, BenZvi, S, Binder, G, Bindig, D, Blaufuss, E, Bose, D, Böser, S, Buzinsky, N, Casey, J, Christov, A, Classen, L, Coenders, S, Conrad, J. M, Day, M, De Ridder, Sam, de Wasseige, G, de With, M, DeYoung, T, Lorenzo, V. di, Dujmovic, H, Flis, S, Fuchs, T, Gier, D, Gladstone, L, Glüsenkamp, T, Golup, G, Góra, D, Griffith, Z, Hansmann, B, Hansmann, T, Hebecker, D, Heereman, D, Hickford, S, Hill, G. C, Hoffman, K. D, Hoffmann, R, Homeier, A, Huang, F, Hultqvist, K, Ishihara, A, Jacobi, E, Japaridze, G. S, Karg, T, Keivani, A, Kolanoski, H, Krings, K, Krückl, G, Kuwabara, T, Lennarz, D, Leuermann, M, Lu, L, Maruyama, R, Mase, K, Maunu, R, Meier, M, Miarecki, S, Middell, E, Mohrmann, L, Naumann, U, Niederhausen, H, O’Murchadha, A, Palczewski, T, Paul, L, Pérez de los Heros, C, Quinnan, M, Raab, C, Reimann, R, Relich, M, Richter, S, Ruhe, T, Ryckbosch, Dirk, Sabbatini, L, Sandroos, J, Schimp, M, Schmidt, T, Seunarine, S, Soldin, D, Song, M, Spiczak, G. M, Spiering, C, Steuer, A, Ström, R, Taboada, I, Terliuk, A, Tilav, S, Toale, P. A, Tobin, M. N, Turcati, A, Veenkamp, J, Vraeghe, Matthias, Williams, D. R, Wood, T. R, Woschnagg, K, Xu, Y, Zoll, M
Format:	Artikel
Sprache:	eng
Schlagworte:	AIR-SHOWER ARRAY ANGULAR SCALES astroparticle physics cosmic rays DIFFUSION HELIOSPHERE LARGE-SCALE ANISOTROPY MAGNETIC RECONNECTION Physics and Astronomy SIDEREAL ANISOTROPY TEV TRANSPORT UNUSUAL SOLAR MINIMUM
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Zusammenfassung:	The IceCube Neutrino Observatory accumulated a total of 318 billion cosmic-ray-induced muon events between 2009 May and 2015 May. This data set was used for a detailed analysis of the sidereal anisotropy in the arrival directions of cosmic rays in the TeV to PeV energy range. The observed global sidereal anisotropy features large regions of relative excess and deficit, with amplitudes of the order of 10(-3) up to about 100 TeV. A decomposition of the arrival direction distribution into spherical harmonics shows that most of the power is contained in the low-multipole (l
ISSN:	0004-637X 1538-4357