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All-sky Measurement of the Anisotropy of Cosmic Rays at 10 TeV and Mapping of the Local Interstellar Magnetic Field

  • A. U. Abeysekara
  • , R. Alfaro
  • , C. Alvarez
  • , R. Arceo
  • , J. C. Arteaga-Velázquez
  • , D. Avila Rojas
  • , E. Belmont-Moreno
  • , S. Y. Benzvi
  • , C. Brisbois
  • , T. Capistrán
  • , A. Carramiana
  • , S. Casanova
  • , U. Cotti
  • , J. Cotzomi
  • , J. C. Diaz-Vélez
  • , C. De León
  • , E. De La Fuente
  • , S. Dichiara
  • , M. A. Duvernois
  • , C. Espinoza
  • D. W. Fiorino, H. Fleischhack, N. Fraija, A. Galván-Gámez, J. A. Garcia-González, M. M. González, J. A. Goodman, Z. Hampel-Arias, J. P. Harding, S. Hernandez, B. Hona, F. Hueyotl-Zahuantitla, A. Iriarte, A. Jardin-Blicq, V. Joshi, A. Lara, H. León Vargas, G. Luis-Raya, K. Malone, S. S. Marinelli, J. Martinez-Castro, O. Martinez, J. A. Matthews, P. Miranda-Romagnoli, E. Moreno, M. Mostafá, L. Nellen, M. Newbold, M. U. Nisa, R. Noriega-Papaqui, E. G. Pérez-Pérez, J. Pretz, Z. Ren, C. D. Rho, C. Riviere, D. Rosa-González, M. Rosenberg, H. Salazar, F. Salesa Greus, A. Sandoval, M. Schneider, H. Schoorlemmer, G. Sinnis, A. J. Smith, P. Surajbali, I. Taboada, K. Tollefson, I. Torres, L. Villaseor, T. Weisgarber, J. Wood, A. Zepeda, H. Zhou, J. D. Alvarez, M. G. Aartsen, M. Ackermann, J. Adams, J. A. Aguilar, M. Ahlers, M. Ahrens, D. Altmann, K. Andeen, T. Anderson, I. Ansseau, G. Anton, C. Argüelles, J. Auffenberg, S. Axani, P. Backes, H. Bagherpour, X. Bai, A. Barbano, J. P. Barron, S. W. Barwick, V. Baum, R. Bay, J. J. Beatty, J. Becker Tjus, K. H. Becker, D. Berley, E. Bernardini, D. Z. Besson, G. Binder, D. Bindig, E. Blaufuss, S. Blot, C. Bohm, M. Börner, F. Bos, S. Böser, O. Botner, E. Bourbeau, J. Bourbeau, F. Bradascio, J. Braun, H. P. Bretz, S. Bron, J. Brostean-Kaiser, A. Burgman, R. S. Busse, T. Carver, E. Cheung, D. Chirkin, K. Clark, L. Classen, G. H. Collin, J. M. Conrad, P. Coppin, P. Correa, D. F. Cowen, R. Cross, P. Dave, M. Day, J. P.A.M. De André, C. De Clercq, J. J. Delaunay, H. Dembinski, K. Deoskar, S. De Ridder, P. Desiati, K. D. De Vries, G. De Wasseige, M. De With, T. Deyoung, H. Dujmovic, M. Dunkman, E. Dvorak, B. Eberhardt, T. Ehrhardt, B. Eichmann, P. Eller, P. A. Evenson, S. Fahey, A. R. Fazely, J. Felde, K. Filimonov, C. Finley, A. Franckowiak, E. Friedman, A. Fritz, T. K. Gaisser, J. Gallagher, E. Ganster, S. Garrappa, L. Gerhardt, K. Ghorbani, W. Giang, T. Glauch, T. Glüsenkamp, A. Goldschmidt, J. G. Gonzalez, D. Grant, Z. Griffith, C. Haack, A. Hallgren, L. Halve, F. Halzen, K. Hanson, D. Hebecker, D. Heereman, K. Helbing, R. Hellauer, S. Hickford, J. Hignight, G. C. Hill, K. D. Hoffman, R. Hoffmann, T. Hoinka, B. Hokanson-Fasig, K. Hoshina, F. Huang, M. Huber, K. Hultqvist, M. Hünnefeld, R. Hussain, S. In, N. Iovine, A. Ishihara, E. Jacobi, G. S. Japaridze, M. Jeong, K. Jero, B. J.P. Jones, P. Kalaczynski, W. Kang, A. Kappes, D. Kappesser, T. Karg, A. Karle, U. Katz, M. Kauer, A. Keivani, J. L. Kelley, A. Kheirandish, J. Kim, T. Kintscher, J. Kiryluk, T. Kittler, S. R. Klein, R. Koirala, H. Kolanoski, L. Köpke, C. Kopper, S. Kopper, D. J. Koskinen, M. Kowalski, K. Krings, M. Kroll, G. Krückl, S. Kunwar, N. Kurahashi, A. Kyriacou, M. Labare, J. L. Lanfranchi, M. J. Larson, F. Lauber, K. Leonard, M. Leuermann, Q. R. Liu, E. Lohfink, C. J.Lozano Mariscal, L. Lu, J. Lünemann, W. Luszczak, J. Madsen, G. Maggi, K. B.M. Mahn, Y. Makino, S. Mancina, I. C. Mariş, R. Maruyama, K. Mase, R. Maunu, K. Meagher, M. Medici, M. Meier, T. Menne, G. Merino, T. Meures, S. Miarecki, J. Micallef, G. Momenté, T. Montaruli, R. W. Moore, M. Moulai, R. Nagai, R. Nahnhauer, P. Nakarmi, U. Naumann, G. Neer, H. Niederhausen, S. C. Nowicki, D. R. Nygren, A. Obertacke Pollmann, A. Olivas, A. O'Murchadha, E. O'Sullivan, T. Palczewski, H. Pandya, D. V. Pankova, P. Peiffer, J. A. Pepper, C. Pérez De Los Heros, D. Pieloth, E. Pinat, A. Pizzuto, M. Plum, P. B. Price, G. T. Przybylski, C. Raab, M. Rameez, L. Rauch, K. Rawlins, I. C. Rea, R. Reimann, B. Relethford, G. Renzi, E. Resconi, W. Rhode, M. Richman, S. Robertson, M. Rongen, C. Rott, T. Ruhe, D. Ryckbosch, D. Rysewyk, I. Safa, S. E.Sanchez Herrera, A. Sandrock, J. Sandroos, M. Santander, S. Sarkar, K. Satalecka, M. Schaufel, P. Schlunder, T. Schmidt, A. Schneider, J. Schneider, S. Schöneberg, L. Schumacher, S. Sclafani, D. Seckel, S. Seunarine, J. Soedingrekso, D. Soldin, M. Song, G. M. Spiczak, C. Spiering, J. Stachurska, M. Stamatikos, T. Stanev, A. Stasik, R. Stein, J. Stettner, A. Steuer, T. Stezelberger, R. G. Stokstad, A. Stößl, N. L. Strotjohann, T. Stuttard, G. W. Sullivan, M. Sutherland, I. Taboada, F. Tenholt, S. Ter-Antonyan, A. Terliuk, S. Tilav, P. A. Toale, M. N. Tobin, C. Tönnis, S. Toscano, D. Tosi, M. Tselengidou, C. F. Tung, A. Turcati, R. Turcotte, C. F. Turley, B. Ty, E. Unger, M. A.Unland Elorrieta, M. Usner, J. Vandenbroucke, W. Van Driessche, D. Van Eijk, N. Van Eijndhoven, S. Vanheule, J. Van Santen, M. Vraeghe, C. Walck, A. Wallace, M. Wallraff, F. D. Wandler, N. Wandkowsky, T. B. Watson, C. Weaver, M. J. Weiss, C. Wendt, J. Werthebach, S. Westerhoff, B. J. Whelan, N. Whitehorn, K. Wiebe, C. H. Wiebusch, L. Wille, D. R. Williams, L. Wills, M. Wolf, J. Wood, T. R. Wood, E. Woolsey, K. Woschnagg, G. Wrede, D. L. Xu, X. W. Xu, Y. Xu, J. P. Yanez, G. Yodh, S. Yoshida, T. Yuan
  • University of Utah
  • Universidad Nacional Autónoma de México
  • Universidad Autonoma de Chiapas
  • Universidad Michoacana de San Nicolas de Hidalgo
  • University of Rochester
  • Michigan Technological University
  • Instituto Nacional de Astrofisica Optica y Electronica
  • Institute of Nuclear Physics
  • Benemerita Universidad Autonoma de Puebla
  • Universidad de Guadalajara
  • University of Wisconsin-Madison
  • University of Maryland, College Park
  • Inter-University Institute for High Energies ULB-VUB
  • Los Alamos National Laboratory
  • Max Planck Institute for Nuclear Physics
  • Universidad Politecnica de Pachuca
  • Pennsylvania State University
  • Michigan State University
  • Instituto Politécnico Nacional
  • University of New Mexico
  • Universidad Autonoma del Estado de Hidalgo
  • Georgia Institute of Technology
  • Centro de Investigacion y de Estudios Avanzados del Instituto Politécnico Nacional
  • University of Canterbury
  • German Electron Synchrotron
  • Université libre de Bruxelles
  • University of Copenhagen
  • Oskar Klein Centre
  • Friedrich-Alexander University Erlangen-Nürnberg
  • Marquette University
  • Massachusetts Institute of Technology
  • RWTH Aachen University
  • South Dakota School of Mines & Technology
  • University of Geneva
  • University of Alberta
  • University of California at Irvine
  • Johannes Gutenberg University Mainz
  • University of California at Berkeley
  • Ohio State University
  • Ruhr University Bochum
  • University of Wuppertal
  • University of Kansas
  • Lawrence Berkeley National Laboratory
  • TU Dortmund University
  • Uppsala University
  • SNOLAB
  • University of Münster
  • Vrije Universiteit Brussel
  • University of Delaware
  • Ghent University
  • Humboldt University of Berlin
  • Sungkyunkwan University
  • Southern University and A&M College
  • Technical University of Munich
  • University of Adelaide
  • Chiba University
  • Clark Atlanta University
  • University of Texas at Arlington
  • University of Alabama
  • Drexel University
  • University of Wisconsin-River Falls
  • Yale University
  • Stony Brook University
  • University of Alaska Anchorage
  • University of Oxford
  • University of California at Los Angeles

Research output: Contribution to journalArticlepeer-review

85 Scopus citations

Abstract

We present the first full-sky analysis of the cosmic ray arrival direction distribution with data collected by the High-Altitude Water Cherenkov and IceCube observatories in the northern and southern hemispheres at the same median primary particle energy of 10 TeV. The combined sky map and angular power spectrum largely eliminate biases that result from partial sky coverage and present a key to probe into the propagation properties of TeV cosmic rays through our local interstellar medium and the interaction between the interstellar and heliospheric magnetic fields. From the map, we determine the horizontal dipole components of the anisotropy δ 0h = 9.16 ×10-4 and δ 6h = 7.25 ×10-4 (±0.04 × 10-4). In addition, we infer the direction (229.°2 ± 3.°5 R.A., 11.°4 ± 3.°0 decl.) of the interstellar magnetic field from the boundary between large-scale excess and deficit regions from which we estimate the missing corresponding vertical dipole component of the large-scale anisotropy to be δN ∼ -3.97+1.0 -2.0 × 10-4.

Original languageEnglish
Article number96
JournalAstrophysical Journal
Volume871
Issue number1
DOIs
StatePublished - Jan 20 2019

Keywords

  • astroparticle physics
  • cosmic rays
  • ISM: magnetic fields

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