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Searches for high-energy neutrino emission in the Galaxy with the combined IceCube-Amanda detector

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Abstract
We report on searches for neutrino sources at energies above 200 GeV in the Northern sky of the Galactic plane, using the data collected by the South Pole neutrino telescope, IceCube, and AMANDA. The Galactic region considered in this work includes the local arm toward the Cygnus region and our closest approach to the Perseus Arm. The searches are based on the data collected between 2007 and 2009. During this time AMANDA was an integrated part of IceCube, which was still under construction and operated with 22 strings (2007-2008) and 40 strings (2008-2009) of optical modules deployed in the ice. By combining the advantages of the larger IceCube detector with the lower energy threshold of the more compact AMANDA detector, we obtain an improved sensitivity at energies below similar to 10 TeV with respect to previous searches. The analyses presented here are a scan for point sources within the Galactic plane, a search optimized formultiple and extended sources in the Cygnus region, which might be below the sensitivity of the point source scan, and studies of seven pre-selected neutrino source candidates. For one of them, Cygnus X-3, a time-dependent search for neutrino emission in coincidence with observed radio and X-ray flares has been performed. No evidence of a signal is found, and upper limits are reported for each of the searches. We investigate neutrino spectra proportional to E-2 and E-3 in order to cover the entire range of possible neutrino spectra. The steeply falling E-3 neutrino spectrum can also be used to approximate neutrino energy spectra with energy cutoffs below 50 TeV since these result in a similar energy distribution of events in the detector. For the region of the Galactic plane visible in the Northern sky, the 90% confidence level muon neutrino flux upper limits are in the range E(3)dN/dE similar to 5.4-19.5 x 10(-11) TeV2 cm(-2) s(-1) for point-like neutrino sources in the energy region [180.0 GeV-20.5 TeV]. These represent the most stringent upper limits for soft-spectra neutrino sources within the Galaxy reported to date.
Keywords
SHOCK FRONTS, CASSIOPEIA-A, COLD MEDIA, neutrinos, GAMMA-RAY EMISSION, COSMIC-RAYS, CRAB-NEBULA, STATISTICAL-ANALYSIS, TRACK RECONSTRUCTION, SUPERNOVA REMNANT, X-RAY, cosmic rays, acceleration of particles

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Chicago
Abbasi, R, Yasser Abdou, M Ackermann, J Adams, JA Aguilar, M Ahlers, D Altmann, et al. 2013. “Searches for High-energy Neutrino Emission in the Galaxy with the Combined IceCube-Amanda Detector.” Astrophysical Journal 763 (1).
APA
Abbasi, R., Abdou, Y., Ackermann, M., Adams, J., Aguilar, J., Ahlers, M., Altmann, D., et al. (2013). Searches for high-energy neutrino emission in the Galaxy with the combined IceCube-Amanda detector. ASTROPHYSICAL JOURNAL, 763(1).
Vancouver
1.
Abbasi R, Abdou Y, Ackermann M, Adams J, Aguilar J, Ahlers M, et al. Searches for high-energy neutrino emission in the Galaxy with the combined IceCube-Amanda detector. ASTROPHYSICAL JOURNAL. 2013;763(1).
MLA
Abbasi, R, Yasser Abdou, M Ackermann, et al. “Searches for High-energy Neutrino Emission in the Galaxy with the Combined IceCube-Amanda Detector.” ASTROPHYSICAL JOURNAL 763.1 (2013): n. pag. Print.
@article{3246638,
  abstract     = {We report on searches for neutrino sources at energies above 200 GeV in the Northern sky of the Galactic plane, using the data collected by the South Pole neutrino telescope, IceCube, and AMANDA. The Galactic region considered in this work includes the local arm toward the Cygnus region and our closest approach to the Perseus Arm. The searches are based on the data collected between 2007 and 2009. During this time AMANDA was an integrated part of IceCube, which was still under construction and operated with 22 strings (2007-2008) and 40 strings (2008-2009) of optical modules deployed in the ice. By combining the advantages of the larger IceCube detector with the lower energy threshold of the more compact AMANDA detector, we obtain an improved sensitivity at energies below similar to 10 TeV with respect to previous searches. The analyses presented here are a scan for point sources within the Galactic plane, a search optimized formultiple and extended sources in the Cygnus region, which might be below the sensitivity of the point source scan, and studies of seven pre-selected neutrino source candidates. For one of them, Cygnus X-3, a time-dependent search for neutrino emission in coincidence with observed radio and X-ray flares has been performed. No evidence of a signal is found, and upper limits are reported for each of the searches. We investigate neutrino spectra proportional to E-2 and E-3 in order to cover the entire range of possible neutrino spectra. The steeply falling E-3 neutrino spectrum can also be used to approximate neutrino energy spectra with energy cutoffs below 50 TeV since these result in a similar energy distribution of events in the detector. For the region of the Galactic plane visible in the Northern sky, the 90\% confidence level muon neutrino flux upper limits are in the range E(3)dN/dE similar to 5.4-19.5 x 10(-11) TeV2 cm(-2) s(-1) for point-like neutrino sources in the energy region [180.0 GeV-20.5 TeV]. These represent the most stringent upper limits for soft-spectra neutrino sources within the Galaxy reported to date.},
  articleno    = {33},
  author       = {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 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 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 Descamps, F 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 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 Laihem, K 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 Movit, SM 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 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 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 Zilles, A and Zoll, M},
  issn         = {0004-637X},
  journal      = {ASTROPHYSICAL JOURNAL},
  language     = {eng},
  number       = {1},
  pages        = {18},
  title        = {Searches for high-energy neutrino emission in the Galaxy with the combined IceCube-Amanda detector},
  url          = {http://dx.doi.org/10.1088/0004-637X/763/1/33},
  volume       = {763},
  year         = {2013},
}

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