Multi-resolution anisotropy studies of ultrahigh-energy cosmic rays detected at the Pierre Auger Observatory
Creators: name: The Pierre Auger Collaboration
name: Aab, A.
name: Abreu, P.
name: Aglietta, M.
name: Samarai, I. Al
name: Albuquerque, I. F. M.
name: Allekotte, I.
name: Almela, A.
name: Castillo, J. Alvarez
name: Alvarez-Muñiz, J.
name: Anastasi, G. A.
name: Anchordoqui, L.
name: Andrada, B.
name: Andringa, S.
name: Aramo, C.
name: Arqueros, F.
name: Arsene, N.
name: Asorey, H.
name: Assis, P.
name: Aublin, J.
name: Avila, G.
name: Badescu, A. M.
name: Balaceanu, A.
name: Luz, R. J. Barreira
name: Baus, C.
name: Beatty, J. J.
name: Becker, K. H.
name: Bellido, J. A.
name: Berat, C.
name: Bertaina, M. E.
name: Bertou, X.
name: Biermann, P. L.
name: Billoir, P.
name: Biteau, J.
name: Blaess, S. G.
name: Blanco, A.
name: Blazek, J.
name: Bleve, C.
name: Boháčová, M.
name: Boncioli, D.
name: Bonifazi, C.
name: Borodai, N.
name: Botti, A. M.
name: Brack, J.
name: Brancus, I.
name: Bretz, T.
name: Bridgeman, A.
name: Briechle, F. L.
name: Buchholz, P.
name: Bueno, A.
name: Buitink, S.
name: Buscemi, M.
name: Caballero-Mora, K. S.
name: Caccianiga, L.
name: Cancio, A.
name: Canfora, F.
name: Caramete, L.
name: Caruso, R.
name: Castellina, A.
name: Cataldi, G.
name: Cazon, L.
name: Chavez, A. G.
name: Chinellato, J. A.
name: Chudoba, J.
name: Clay, R. W.
name: Colalillo, R.
name: Coleman, A.
name: Collica, L.
name: Coluccia, M. R.
name: Conceição, R.
name: Contreras, F.
name: Cooper, M. J.
name: Coutu, S.
name: Covault, C. E.
name: Cronin, J.
name: D'Amico, S.
name: Daniel, B.
name: Dasso, S.
name: Daumiller, K.
name: Dawson, B. R.
name: de Almeida, R. M.
name: de Jong, S. J.
name: De Mauro, G.
name: Neto, J. R. T. de Mello
name: De Mitri, I.
name: de Oliveira, J.
name: de Souza, V.
name: Debatin, J.
name: Deligny, O.
name: Di Giulio, C.
name: Di Matteo, A.
name: Castro, M. L. Díaz
name: Diogo, F.
name: Dobrigkeit, C.
name: D'Olivo, J. C.
name: Anjos, R. C. dos
name: Dova, M. T.
name: Dundovic, A.
name: Ebr, J.
name: Engel, R.
name: Erdmann, M.
name: Erfani, M.
name: Escobar, C. O.
name: Espadanal, J.
name: Etchegoyen, A.
name: Falcke, H.
name: Farrar, G.
name: Fauth, A. C.
name: Fazzini, N.
name: Fick, B.
name: Figueira, J. M.
name: Filipčič, A.
name: Fratu, O.
name: Freire, M. M.
name: Fujii, T.
name: Fuster, A.
name: Gaior, R.
name: García, B.
name: Garcia-Pinto, D.
name: Gaté, F.
name: Gemmeke, H.
name: Gherghel-Lascu, A.
name: Ghia, P. L.
name: Giaccari, U.
name: Giammarchi, M.
name: Giller, M.
name: Głas, D.
name: Glaser, C.
name: Golup, G.
name: Berisso, M. Gómez
name: Vitale, P. F. Gómez
name: González, N.
name: Gorgi, A.
name: Gorham, P.
name: Gouffon, P.
name: Grillo, A. F.
name: Grubb, T. D.
name: Guarino, F.
name: Guedes, G. P.
name: Hampel, M. R.
name: Hansen, P.
name: Harari, D.
name: Harrison, T. A.
name: Harton, J. L.
name: Hasankiadeh, Q.
name: Haungs, A.
name: Hebbeker, T.
name: Heck, D.
name: Heimann, P.
name: Herve, A. E.
name: Hill, G. C.
name: Hojvat, C.
name: Holt, E.
name: Homola, P.
name: Hörandel, J. R.
name: Horvath, P.
name: Hrabovský, M.
name: Huege, T.
name: Hulsman, J.
name: Insolia, A.
name: Isar, P. G.
name: Jandt, I.
name: Jansen, S.
name: Johnsen, J. A.
name: Josebachuili, M.
name: Kääpä, A.
name: Kambeitz, O.
name: Kampert, K. H.
name: Katkov, I.
name: Keilhauer, B.
name: Kemp, E.
name: Kemp, J.
name: Kieckhafer, R. M.
name: Klages, H. O.
name: Kleifges, M.
name: Kleinfeller, J.
name: Krause, R.
name: Krohm, N.
name: Kuempel, D.
name: Mezek, G. Kukec
name: Kunka, N.
name: Awad, A. Kuotb
name: LaHurd, D.
name: Lauscher, M.
name: Legumina, R.
name: de Oliveira, M. A. Leigui
name: Letessier-Selvon, A.
name: Lhenry-Yvon, I.
name: Link, K.
name: Lopes, L.
name: López, R.
name: Casado, A. López
name: Luce, Q.
name: Lucero, A.
name: Malacari, M.
name: Mallamaci, M.
name: Mandat, D.
name: Mantsch, P.
name: Mariazzi, A. G.
name: Mariş, I. C.
name: Marsella, G.
name: Martello, D.
name: Martinez, H.
name: Bravo, O. Martínez
name: Meza, J. J. Masías
name: Mathes, H. J.
name: Mathys, S.
name: Matthews, J.
name: Matthews, J. A. J.
name: Matthiae, G.
name: Mayotte, E.
name: Mazur, P. O.
name: Medina, C.
name: Medina-Tanco, G.
name: Melo, D.
name: Menshikov, A.
name: Messina, S.
name: Micheletti, M. I.
name: Middendorf, L.
name: Minaya, I. A.
name: Miramonti, L.
name: Mitrica, B.
name: Mockler, D.
name: Mollerach, S.
name: Montanet, F.
name: Morello, C.
name: Mostafá, M.
name: Müller, A. L.
name: Müller, G.
name: Muller, M. A.
name: Müller, S.
name: Mussa, R.
name: Naranjo, I.
name: Nellen, L.
name: Nguyen, P. H.
name: Niculescu-Oglinzanu, M.
name: Niechciol, M.
name: Niemietz, L.
name: Niggemann, T.
name: Nitz, D.
name: Nosek, D.
name: Novotny, V.
name: Nožka, H.
name: Núñez, L. A.
name: Ochilo, L.
name: Oikonomou, F.
name: Olinto, A.
name: Selmi-Dei, D. Pakk
name: Palatka, M.
name: Pallotta, J.
name: Papenbreer, P.
name: Parente, G.
name: Parra, A.
name: Paul, T.
name: Pech, M.
name: Pedreira, F.
name: Pękala, J.
name: Pelayo, R.
name: Peña-Rodriguez, J.
name: Pereira, L. A. S.
name: Perlín, M.
name: Perrone, L.
name: Peters, C.
name: Petrera, S.
name: Phuntsok, J.
name: Piegaia, R.
name: Pierog, T.
name: Pieroni, P.
name: Pimenta, M.
name: Pirronello, V.
name: Platino, M.
name: Plum, M.
name: Porowski, C.
name: Prado, R. R.
name: Privitera, P.
name: Prouza, M.
name: Quel, E. J.
name: Querchfeld, S.
name: Quinn, S.
name: Ramos-Pollan, R.
name: Rautenberg, J.
name: Ravignani, D.
name: Revenu, B.
name: Ridky, J.
name: Risse, M.
name: Ristori, P.
name: Rizi, V.
name: de Carvalho, W. Rodrigues
name: Fernandez, G. Rodriguez
name: Rojo, J. Rodriguez
name: Rogozin, D.
name: Roncoroni, M. J.
name: Roth, M.
name: Roulet, E.
name: Rovero, A. C.
name: Ruehl, P.
name: Saffi, S. J.
name: Saftoiu, A.
name: Salazar, H.
name: Saleh, A.
name: Greus, F. Salesa
name: Salina, G.
name: Sánchez, F.
name: Sanchez-Lucas, P.
name: Santos, E. M.
name: Santos, E.
name: Sarazin, F.
name: Sarmento, R.
name: Sarmiento, C. A.
name: Sato, R.
name: Schauer, M.
name: Scherini, V.
name: Schieler, H.
name: Schimp, M.
name: Schmidt, D.
name: Scholten, O.
name: Schovánek, P.
name: Schröder, F. G.
name: Schulz, A.
name: Schulz, J.
name: Schumacher, J.
name: Sciutto, S. J.
name: Segreto, A.
name: Settimo, M.
name: Shadkam, A.
name: Shellard, R. C.
name: Sigl, G.
name: Silli, G.
name: Sima, O.
name: Śmiałkowski, A.
name: Šmída, R.
name: Snow, G. R.
name: Sommers, P.
name: Sonntag, S.
name: Sorokin, J.
name: Squartini, R.
name: Stanca, D.
name: Stanič, S.
name: Stasielak, J.
name: Stassi, P.
name: Strafella, F.
name: Suarez, F.
name: Durán, M. Suarez
name: Sudholz, T.
name: Suomijärvi, T.
name: Supanitsky, A. D.
name: Swain, J.
name: Szadkowski, Z.
name: Taboada, A.
name: Taborda, O. A.
name: Tapia, A.
name: Theodoro, V. M.
name: Timmermans, C.
name: Peixoto, C. J. Todero
name: Tomankova, L.
name: Tomé, B.
name: Elipe, G. Torralba
name: Torri, M.
name: Travnicek, P.
name: Trini, M.
name: Ulrich, R.
name: Unger, M.
name: Urban, M.
name: Galicia, J. F. Valdés
name: Valiño, I.
name: Valore, L.
name: van Aar, G.
name: van Bodegom, P.
name: Berg, A. M. van den
name: van Vliet, A.
name: Varela, E.
name: Cárdenas, B. Vargas
name: Varner, G.
name: Vázquez, J. R.
name: Vázquez, R. A.
name: Veberič, D.
name: Quispe, I. D. Vergara
name: Verzi, V.
name: Vicha, J.
name: Villaseñor, L.
name: Vorobiov, S.
name: Wahlberg, H.
name: Wainberg, O.
name: Walz, D.
name: Watson, A. A.
name: Weber, M.
name: Weindl, A.
name: Wiencke, L.
name: Wilczyński, H.
name: Winchen, T.
name: Wittkowski, D.
name: Wundheiler, B.
name: Yang, L.
name: Yelos, D.
name: Yushkov, A.
name: Zas, E.
name: Zavrtanik, D.
name: Zavrtanik, M.
name: Zepeda, A.
name: Zimmermann, B.
name: Ziolkowski, M.
name: Zong, Z.
name: Zuccarello, F.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences
subject: FOS: Physical sciences

description: We report a multi-resolution search for anisotropies in the arrival directions of cosmic rays detected at the Pierre Auger Observatory with local zenith angles up to $80^\circ$ and energies in excess of 4 EeV ($4 \times 10^{18}$ eV). This search is conducted by measuring the angular power spectrum and performing a needlet wavelet analysis in two independent energy ranges. Both analyses are complementary since the angular power spectrum achieves a better performance in identifying large-scale patterns while the needlet wavelet analysis, considering the parameters used in this work, presents a higher efficiency in detecting smaller-scale anisotropies, potentially providing directional information on any observed anisotropies. No deviation from isotropy is observed on any angular scale in the energy range between 4 and 8 EeV. Above 8 EeV, an indication for a dipole moment is captured; while no other deviation from isotropy is observed for moments beyond the dipole one. The corresponding $p$-values obtained after accounting for searches blindly performed at several angular scales, are $1.3 \times 10^{-5}$ in the case of the angular power spectrum, and $2.5 \times 10^{-3}$ in the case of the needlet analysis. While these results are consistent with previous reports making use of the same data set, they provide extensions of the previous works through the thorough scans of the angular scales.
description: Published version. Added journal reference and DOI. Added Report Number