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.
Published Web Location
https://doi.org/10.3847/0004-637x/830/2/129Abstract
© 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.