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Search for Galactic PeV gamma rays with the IceCube Neutrino Observatory

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Abstract
Gamma-ray induced air showers are notable for their lack of muons, compared to hadronic showers. Hence, air shower arrays with large underground muon detectors can select a sample greatly enriched in photon showers by rejecting showers containing muons. IceCube is sensitive to muons with energies above similar to 500 GeV at the surface, which provides an efficient veto system for hadronic air showers with energies above 1 PeV. One year of data from the 40-string IceCube configuration was used to perform a search for point sources and a Galactic diffuse signal. No sources were found, resulting in a 90% C.L. upper limit on the ratio of gamma rays to cosmic rays of 1.2 x 10(-3) for the flux coming from the Galactic plane region (-80 degrees less than or similar to l less than or similar to -30 degrees; -10 degrees less than or similar to b less than or similar to 5 degrees) in the energy range 1.2-6.0 PeV. In the same energy range, point source fluxes with E-2 spectra have been excluded at a level of (E/TeV)(2)d Phi/dE similar to 10(-12)-10(-11) cm(-2) s(-1) TeV-1 depending on source declination. The complete IceCube detector will have a better sensitivity (due to the larger detector size), improved reconstruction, and vetoing techniques. Preliminary data from the nearly final IceCube detector configuration have been used to estimate the 5-yr sensitivity of the full detector. It is found to be more than an order of magnitude better, allowing the search for PeV extensions of known TeV gamma-ray emitters.
Keywords
EMISSION, DISCOVERY, TEV, PLANE, TELESCOPE, RADIATION, MILAGRO, HESS, MOLECULAR CLOUDS

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Chicago
Aartsen, MG, R Abbasi, Yasser Abdou, M Ackermann, J Adams, JA Aguilar, M Ahlers, et al. 2013. “Search for Galactic PeV Gamma Rays with the IceCube Neutrino Observatory.” Physical Review D 87 (6).
APA
Aartsen, M., Abbasi, R., Abdou, Y., Ackermann, M., Adams, J., Aguilar, J., Ahlers, M., et al. (2013). Search for Galactic PeV gamma rays with the IceCube Neutrino Observatory. PHYSICAL REVIEW D, 87(6).
Vancouver
1.
Aartsen M, Abbasi R, Abdou Y, Ackermann M, Adams J, Aguilar J, et al. Search for Galactic PeV gamma rays with the IceCube Neutrino Observatory. PHYSICAL REVIEW D. 2013;87(6).
MLA
Aartsen, MG, R Abbasi, Yasser Abdou, et al. “Search for Galactic PeV Gamma Rays with the IceCube Neutrino Observatory.” PHYSICAL REVIEW D 87.6 (2013): n. pag. Print.
@article{3245123,
  abstract     = {Gamma-ray induced air showers are notable for their lack of muons, compared to hadronic showers. Hence, air shower arrays with large underground muon detectors can select a sample greatly enriched in photon showers by rejecting showers containing muons. IceCube is sensitive to muons with energies above similar to 500 GeV at the surface, which provides an efficient veto system for hadronic air showers with energies above 1 PeV. One year of data from the 40-string IceCube configuration was used to perform a search for point sources and a Galactic diffuse signal. No sources were found, resulting in a 90\% C.L. upper limit on the ratio of gamma rays to cosmic rays of 1.2 x 10(-3) for the flux coming from the Galactic plane region (-80 degrees less than or similar to l less than or similar to -30 degrees; -10 degrees less than or similar to b less than or similar to 5 degrees) in the energy range 1.2-6.0 PeV. In the same energy range, point source fluxes with E-2 spectra have been excluded at a level of (E/TeV)(2)d Phi/dE similar to 10(-12)-10(-11) cm(-2) s(-1) TeV-1 depending on source declination. The complete IceCube detector will have a better sensitivity (due to the larger detector size), improved reconstruction, and vetoing techniques. Preliminary data from the nearly final IceCube detector configuration have been used to estimate the 5-yr sensitivity of the full detector. It is found to be more than an order of magnitude better, allowing the search for PeV extensions of known TeV gamma-ray emitters.},
  articleno    = {062002},
  author       = {Aartsen, MG and Abbasi, R and Abdou, Yasser and Ackermann, M and Adams, J and Aguilar, JA and Ahlers, M and Altmann, D and Andeen, K and Auffenberg, J and Bai, X and Baker, M and Barwick, SW and Baum, V and Bay, R and Beattie, K and Beatty, JJ and Bechet, S and Tjus, JB and Becker, KH and Bell, M and Benabderrahmane, ML and BenZvi, S and Berdermann, J and Berghaus, P and Berley, D and Bernardini, E and Bertrand, D and Besson, DZ and Bindig, D and Bissok, M and Blaufuss, E and Blumenthal, J and Boersma, DJ and Bohaichuk, S and Bohm, C and Bose, D and Boser, S and Botner, O and Brayeur, L and Brown, AM and Bruijn, R and Brunner, J and Buitink, S and Carson, Michael and Casey, J and Casier, M and Chirkin, D and Christy, B and Clark, K and Clevermann, F and Cohen, S and Cowen, DF and Silva, AHC and Danninger, M and Daughhetee, J and Davis, JC and De Clercq, C and De Ridder, Sam and Descamps, Freija and Desiati, P and De Vries-Uiterweerd, Garmt and DeYoung, T and Diaz-Velez, JC and Dreyer, J and Dumm, JP and Dunkman, M and Eagan, R and Eisch, J and Ellsworth, RW and Engdegard, O and Euler, S and Evenson, PA and Fadiran, O and Fazely, AR and Fedynitch, A and Feintzeig, J and Feusels, Tom and Filimonov, K and Finley, C and Fischer-Wasels, T and Flis, S and Franckowiak, A and Franke, R and Frantzen, K and Fuchs, T and Gaisser, TK and Gallagher, J and Gerhardt, L and Gladstone, L and Glusenkamp, T and Goldschmidt, A and Golup, G and Goodman, JA and Gora, D and Grant, D and Gross, A and Grullon, S and Gurtner, M and Ha, C and Haj Ismail, Abd Al Karim and Hallgren, A and Halzen, F and Hanson, K and Heereman, D and Heimann, P and Heinen, D and Helbing, K and Hellauer, R and Hickford, S and Hill, GC and Hoffman, KD and Hoffmann, R and Homeier, A and Hoshina, K and Huelsnitz, W and Hulth, PO and Hultqvist, K and Hussain, S and Ishihara, A and Jacobi, E and Jacobsen, J and Japaridze, GS and Jlelati, Ola and Kappes, A and Karg, T and Karle, A and Kiryluk, J and Kislat, F and Klas, J and Klein, SR and Kohne, JH and Kohnen, G and Kolanoski, H and Kopke, L and Kopper, C and Kopper, S and Koskinen, DJ and Kowalski, M and Krasberg, M and Kroll, G and Kunnen, J and Kurahashi, N and Kuwabara, T and Labare, Mathieu and Landsman, H and Larson, MJ and Lauer, R and Lesiak-Bzdak, M and Lunemann, J and Madsen, J and Maruyama, R and Mase, K and Matis, HS and McNally, F and Meagher, K and Merck, M and Meszaros, P and Meures, T and Miarecki, S and Middell, E and Milke, N and Miller, J and Mohrmann, L and Montaruli, T and Morse, R and Nahnhauer, R and Naumann, U and Nowicki, SC and Nygren, DR and Obertacke, A and Odrowski, S and Olivas, A and Olivo, M and O'Murchadha, A and Panknin, S and Paul, L and Pepper, JA and de los Heros, CP and Pieloth, D and Pirk, N and Posselt, J and Price, PB and Przybylski, GT and Radel, L and Rawlins, K and Redl, P and Resconi, E and Rhode, W and Ribordy, M and Richman, M and Riedel, B and Rodrigues, JP and Rothmaier, F and Rott, C and Ruhe, T and Ruzybayev, B and Ryckbosch, Dirk and Saba, SM and Salameh, T and Sander, HG and Santander, M and Sarkar, S and Schatto, K and Scheel, M and Scheriau, F and Schmidt, T and Schmitz, M and Schoenen, S and Schoneberg, S and Schonherr, L and Schonwald, A and Schukraft, A and Schulte, L and Schulz, O and Seckel, D and Seo, SH and Sestayo, Y and Seunarine, S and Sheremata, C and Smith, MWE and Soiron, M and Soldin, D and Spiczak, GM and Spiering, C and Stamatikos, M and Stanev, T and Stasik, A and Stezelberger, T and Stokstad, RG and Stossl, A and Strahler, EA and Strom, R and Sullivan, GW and Taavola, H and Taboada, I and Tamburro, A and Ter-Antonyan, S and Tilav, S and Toale, PA and Toscano, S and Usner, M and van der Drift, D and van Eijndhoven, N and Van Overloop, Arne and van Santen, J and Vehring, M and Voge, M and Vraeghe, Matthias and Walck, C and Waldenmaier, T and Wallraff, M and Walter, M and Wasserman, R and Weaver, C and Wendt, C and Westerhoff, S and Whitehorn, N and Wiebe, K and Wiebusch, CH and Williams, DR and Wissing, H and Wolf, M and Wood, TR and Woschnagg, K and Xu, C and Xu, DL and Xu, XW and Yanez, JP and Yodh, G and Yoshida, S and Zarzhitsky, P and Ziemann, J and Zierke, S and Zilles, A and Zoll, M},
  issn         = {1550-7998},
  journal      = {PHYSICAL REVIEW D},
  language     = {eng},
  number       = {6},
  pages        = {15},
  title        = {Search for Galactic PeV gamma rays with the IceCube Neutrino Observatory},
  url          = {http://dx.doi.org/10.1103/PhysRevD.87.062002},
  volume       = {87},
  year         = {2013},
}

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