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SEARCH FOR SOURCES OF HIGH-ENERGY NEUTRONS WITH FOUR YEARS OF DATA FROM THE ICETOP DETECTOR

  • Author(s): Aartsen, MG
  • Abraham, K
  • Ackermann, M
  • Adams, J
  • Aguilar, JA
  • Ahlers, M
  • Ahrens, M
  • Altmann, D
  • Andeen, K
  • Anderson, T
  • Ansseau, I
  • Anton, G
  • Archinger, M
  • Argüelles, C
  • Auffenberg, J
  • Axani, S
  • Bai, X
  • Barwick, SW
  • Baum, V
  • Bay, R
  • Beatty, JJ
  • Tjus, J Becker
  • Becker, K-H
  • BenZvi, S
  • Berghaus, P
  • Berley, D
  • Bernardini, E
  • Bernhard, A
  • Besson, DZ
  • Binder, G
  • Bindig, D
  • Bissok, M
  • Blaufuss, E
  • Blot, S
  • Bohm, C
  • Börner, M
  • Bos, F
  • Bose, D
  • Böser, S
  • Botner, O
  • Braun, J
  • Brayeur, L
  • Bretz, H-P
  • Burgman, A
  • Carver, T
  • Casier, M
  • Cheung, E
  • Chirkin, D
  • Christov, A
  • Clark, K
  • Classen, L
  • Coenders, S
  • Collin, GH
  • Conrad, JM
  • Cowen, DF
  • Cross, R
  • Day, M
  • André, JPAM de
  • Clercq, C De
  • Rosendo, E del Pino
  • Dembinski, H
  • Ridder, S De
  • Desiati, P
  • Vries, KD de
  • Wasseige, G de
  • With, M de
  • DeYoung, T
  • Díaz-Vélez, JC
  • Lorenzo, V di
  • Dujmovic, H
  • Dumm, JP
  • Dunkman, M
  • Eberhardt, B
  • Ehrhardt, T
  • Eichmann, B
  • Eller, P
  • Euler, S
  • Evenson, PA
  • Fahey, S
  • Fazely, AR
  • Feintzeig, J
  • Felde, J
  • Filimonov, K
  • Finley, C
  • Flis, S
  • Fösig, C-C
  • Franckowiak, A
  • Friedman, E
  • Fuchs, T
  • Gaisser, TK
  • Gallagher, J
  • Gerhardt, L
  • Ghorbani, K
  • Giang, W
  • Gladstone, L
  • Glagla, M
  • Glüsenkamp, T
  • Goldschmidt, A
  • Golup, G
  • Gonzalez, JG
  • Grant, D
  • Griffith, Z
  • Haack, C
  • Ismail, A Haj
  • Hallgren, A
  • Halzen, F
  • Hansen, E
  • Hansmann, B
  • Hansmann, T
  • Hanson, K
  • Hebecker, D
  • Heereman, D
  • Helbing, K
  • Hellauer, R
  • Hickford, S
  • Hignight, J
  • Hill, GC
  • Hoffman, KD
  • Hoffmann, R
  • Holzapfel, K
  • Hoshina, K
  • Huang, F
  • Huber, M
  • Hultqvist, K
  • In, S
  • Ishihara, A
  • Jacobi, E
  • Japaridze, GS
  • Jeong, M
  • Jero, K
  • Jones, BJP
  • Jurkovic, M
  • Kappes, A
  • Karg, T
  • Karle, A
  • Katz, U
  • Kauer, M
  • Keivani, A
  • Kelley, JL
  • Kemp, J
  • Kheirandish, A
  • Kim, M
  • Kintscher, T
  • Kiryluk, J
  • Kittler, T
  • Klein, SR
  • Kohnen, G
  • Koirala, R
  • Kolanoski, H
  • Konietz, R
  • Köpke, L
  • Kopper, C
  • Kopper, S
  • Koskinen, DJ
  • Kowalski, M
  • Krings, K
  • Kroll, M
  • Krückl, G
  • Krüger, C
  • Kunnen, J
  • Kunwar, S
  • Kurahashi, N
  • Kuwabara, T
  • Labare, M
  • Lanfranchi, JL
  • Larson, MJ
  • Lauber, F
  • Lennarz, D
  • Lesiak-Bzdak, M
  • Leuermann, M
  • Leuner, J
  • Lu, L
  • Lünemann, J
  • Madsen, J
  • Maggi, G
  • Mahn, KBM
  • Mancina, S
  • Mandelartz, M
  • Maruyama, R
  • Mase, K
  • Maunu, R
  • McNally, F
  • Meagher, K
  • Medici, M
  • Meier, M
  • Meli, A
  • Menne, T
  • Merino, G
  • Meures, T
  • Miarecki, S
  • Mohrmann, L
  • Montaruli, T
  • Moulai, M
  • Nahnhauer, R
  • Naumann, U
  • Neer, G
  • Niederhausen, H
  • Nowicki, SC
  • Nygren, DR
  • Pollmann, A Obertacke
  • Olivas, A
  • O’Murchadha, A
  • Palczewski, T
  • Pandya, H
  • Pankova, DV
  • Penek, Ö
  • Pepper, JA
  • Heros, C Pérez de los
  • Pieloth, D
  • Pinat, E
  • Price, PB
  • Przybylski, GT
  • Quinnan, M
  • Raab, C
  • Rädel, L
  • Rameez, M
  • Rawlins, K
  • Reimann, R
  • Relethford, B
  • Relich, M
  • Resconi, E
  • Rhode, W
  • Richman, M
  • Riedel, B
  • Robertson, S
  • Rongen, M
  • Rott, C
  • Ruhe, T
  • Ryckbosch, D
  • Rysewyk, D
  • Sabbatini, L
  • Herrera, SE Sanchez
  • Sandrock, A
  • Sandroos, J
  • Sarkar, S
  • Satalecka, K
  • Schimp, M
  • Schlunder, P
  • Schmidt, T
  • Schoenen, S
  • Schöneberg, S
  • Schumacher, L
  • Seckel, D
  • Seunarine, S
  • Soldin, D
  • Song, M
  • Spiczak, GM
  • Spiering, C
  • Stahlberg, M
  • Stanev, T
  • Stasik, A
  • Steuer, A
  • Stezelberger, T
  • Stokstad, RG
  • Stössl, A
  • Ström, R
  • Strotjohann, NL
  • Sullivan, GW
  • Sutherland, M
  • Taavola, H
  • Taboada, I
  • Tatar, J
  • Tenholt, F
  • Ter-Antonyan, S
  • Terliuk, A
  • Tešić, G
  • Tilav, S
  • Toale, PA
  • Tobin, MN
  • Toscano, S
  • Tosi, D
  • Tselengidou, M
  • Turcati, A
  • Unger, E
  • Usner, M
  • Vandenbroucke, J
  • Eijndhoven, N van
  • Vanheule, S
  • Rossem, M van
  • Santen, J van
  • Veenkamp, J
  • Vehring, M
  • Voge, M
  • Vraeghe, M
  • Walck, C
  • Wallace, A
  • Wallraff, M
  • Wandkowsky, N
  • Weaver, Ch
  • Weiss, MJ
  • Wendt, C
  • Westerhoff, S
  • Whelan, BJ
  • Wickmann, S
  • Wiebe, K
  • Wiebusch, CH
  • Wille, L
  • Williams, DR
  • Wills, L
  • Wolf, M
  • Wood, TR
  • Woolsey, E
  • Woschnagg, K
  • Xu, DL
  • Xu, XW
  • Xu, Y
  • Yanez, JP
  • Yodh, G
  • Yoshida, S
  • Zoll, M
  • et al.
Abstract

© 2016. The American Astronomical Society. All rights reserved.. IceTop is an air-shower array located on the Antarctic ice sheet at the geographic South Pole. IceTop can detect an astrophysical flux of neutrons from Galactic sources as an excess of cosmic-ray air showers arriving from the source direction. Neutrons are undeflected by the Galactic magnetic field and can typically travel 10 (E/PeV) pc before decay. Two searches are performed using 4 yr of the IceTop data set to look for a statistically significant excess of events with energies above 10 PeV (1016 eV) arriving within a small solid angle. The all-sky search method covers from -90° to approximately -50° in declination. No significant excess is found. A targeted search is also performed, looking for significant correlation with candidate sources in different target sets. This search uses a higher-energy cut (100 PeV) since most target objects lie beyond 1 kpc. The target sets include pulsars with confirmed TeV energy photon fluxes and high-mass X-ray binaries. No significant correlation is found for any target set. Flux upper limits are determined for both searches, which can constrain Galactic neutron sources and production scenarios.

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